THE INTERNATIONAL ADVISORY COMMITTEE

ON THE J-PARC PROJECTREPORT 2 April 2008

The first great achievement of the J-PARC - the next Challenge the operation phase

Meeting 3 -4 March 2008

Tokai, Japan

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CONTENTSEXECUTIVE SUMMARY

2RECOMMENDATIONS
Subsidiary Recommendations

6
7

GENERAL STATUS OF THE PROJECT

9

J-PARC CENTER ORGANISATION

10ACCELERATOR STATUS
LINAC
LINAC upgrade plan
3GeV Rapid Cycling Synchrotron
Main Ring Synchrotron Status & Commissioning PlanRCS and Main Ring RF system
Realizing the full potential of the J-PARC complex

11
12
12
13
14
15
16

HADRON EXPERIMENTS

18

NEUTRINO EXPERIMENTS

20

COMPUTER NETWORKS AND REMOTE ACCESS

22

MATERIALS AND LIFE SCIENCES
Target System
Cavitation erosion
Control system and buildings
Control and diagnostic instruments
SparesStart-up procedures and documentation
Overall comments on systems
Neutron Scattering Instruments
Oversight of Experimental Systems
Future Developments
MLF Muon Facility
User Interface

23
23
25
25
25
25
26
26
27
27
28
28
29

NUCLEAR TRANSMUTATION

29

APPENDIX IAgenda for the 6th International Advisory Committee Meeting J-PARC

32

APPENDIX II Committee Members

34

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EXECUTIVE SUMMARY
The International Advisory Committee (IAC) for the J-PARC joint projectof the Japanese Atomic Energy Agency (JAEA) and the High Energy
Accelerator Research Organisation (KEK) met between 3 and 4 March
2008 at JAEA, Tokai and toured the construction site of J-PARC.
The IAC had reports from the Accelerator Technical Advisory Committee(A-TAC) and the Neutron Technical Advisory Committee (N-TAC),
which met the previous week at Tokai. The present report is also
informed by reports from the Muon Science Experimental Facilities
Advisory Committee (MUSAC) meeting at Tokai on 15-16 January
2008. The agenda of the IAC meeting is attached as Appendix I and themembership at Appendix II.
The J-PARC Project is beginning operation in 2008 as Phase 1 of the project
comes to a successful conclusion. The IAC wishes to use nothing but
superlatives to describe what it has read, listened to and seen on thisvisit. The buildings and the first two components of the accelerator
complex as well as instruments have been or are being delivered onschedule and on budget.
We attribute this great success - organizationally to the formation of the JPARC center and its support by the partner organizations JAEA and
KEK. At the human level, these achievements have come from aheroic performance of the whole J-PARC team from the Director(Professor Nagamiya) to the staff involved in all operations. Highstandards of commitment by the personnel have been demonstrated.
The developments - in the experience on the IAC - have been little
short of miraculous given the financial and other constraints and thetime schedule.
The budget constraints during Phase 1 - though greatly relieved by thestrong efforts of the partners and the Japanese Government mean thatspares for the operation phase are very low in all departments. There
are high risks in some areas. For example, only three spare klystrons
exist, there is no spare neutron target and the replacement capability forcomponents in the accelerators which show variability in manufacture
and a tendency to fail is minimal.

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The budgetary constraints also indicate that in the next phase as operations
build up, money will be needed to spend on solvable problems
identified as power increases in the accelerator and target systems.
Examples are - the accelerator cavities are running at nearly 100% of
their rating and solutions must be developed as long use and higher
power becomes common. In addition, work must be continued andinternational collaborations maintained on the all-important cavitation
problems of the neutron target systems. The operation phase must
therefore contain an R&D component as well as general operations anduser facilitation components.
With a suitable operation budget in the above terms the IAC sees no obstacle
to a successful start-up of the first user operations with neutrons (2008)
and nuclear physics and neutrinos (2009). The budgetary emphasis at
this stage must be on sustainability in the next 4-5 years asrecommended in the 2007 IAC report.
The committee is aware that the J-PARC directors and partners are pursuingthis goal with the Japanese government. The committee strongly
supports these processes to obtain a strong operational budget at least at
the minimum level proposed in the IAC's 2007 report and has
recommended accordingly. We recall here the 2007 key point :"At our request the Director has prepared an analysis of cost cutting
measures in the operational budget - so that systematic improvement of
the accelerator system and instruments can be done within the envelopeof about 190 OYen per annum (estimated last year) at full operation
after 2008."
Listening to the record of achievement, the IAC is completely convinced of
its previous recommendations for a clear timetable and funding toachieve the energy upgrade. Our appraisal of the experimental needs inall sectors indicates the benefit of holding to the vision of world's best
performance for the accelerators and their dependent instruments.
The IAC welcomes the acceptance by J-PARC of its recommendations onorganization within the Center. There has been a positive response to
all recommendations but more needs to be done to ensure smooth
installation of remaining Phase 1 components and maximum efficiency
for engaging the user communities. Key areas of administrative
process - some of them mentioned in 2007 - remain. These include --5-• Smooth translation of key personnel from construction into operation
so that the experimental "know-how" of those who have built
instruments, the target station, the accelerator complex, and thetechnical support is retained both in the form of documents andenduring personal knowledge.
• The processes of coordination need to be further strengthened so thatvery clear lines of responsibility are available to new users andexperimental groups.
• The culture of a very friendly user office as well as personallyresponsible scientists and technicians at the instruments needs to be
progressively established. As experiments and instruments come online
this organizational structure must be very visible to the external worldand easily approachable.
The IAC advises that the first few years of the operation phase will be very
important in establishing J-PARC's scientific credentials. The clear
budgetary signal on operational funding from JAEA, the KEK and theJapanese government is vital. For the high volume user experiments
such as Materials and Life Sciences the best scientists nationally andinternationally should be recruited to mentor new users in the initial
operation and by their own excellence recruit them a vision of J-PARC
as the world's best institute for their work.
The status of J-PARC's own staff scientists was discussed in 2007. The IAC
holds to these recommendations on internal contestability and a single
PAC process for all users. We go further in 2008 to suggest thatexcellent "in house" scientists should have the right to apply forexternal grants and join external collaborative grant processes for theirwork within an eventual goal - of their having an appreciable portion(e.g. 20%) of their time available for personal science.
The IAC thanks the J-PARC Director, Professor Nagamiya, and the project
team for the preparation and the openness of discussion at the IAC. The
papers distributed before the meeting expedited the IAC's work byallowing IAC members to form and discuss views on key policy issues
before the meeting. The IAC notes with approval the extent to which its
recommendations of IAC 2007 have been taken up by the project team,
the individual project leaders and the partner organisations.

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IAC Recommendations
Recommendation 1: The IAC recommends that KEK, JAEA and theJapanese Government come together to decide on a J-PARC
operational budget profile for 2009-2012. The analyses of the 2007 IAC
report should be the basis of this. Such a multi-year commitment isneeded for planning purposes and to launch a user program which willallow Japanese and foreign groups to make scientific commitments to JPARC.
The committee strongly supports the efforts of the J-PARC Director andpartners with the Japanese government to resolve this matter. The method
used for SPring-8 designating J-PARC as a "National Facility" under the
new law, for example, already appears attractive for the JAEA funding
component. We recommend that innovative consideration be given also to
the KEK part to ensure balance.
Recommendation 2 The IAC is convinced that the full potential of the JPARC complex cannot be realized with a 181 MeV linac. We therefore
urge the identification of funding profile for restoration of the linac
energy to 400 MeV as a high priority item.
Recommendation 3: The IAC recommends that sufficient funds be set
aside within the J-PARC operating budget to secure an appropriate
level of spares and to support necessary improvements to the J-PARC
complex with a goal to providing 0.6 MW from the RCS and 0.4 MW
from the Main Ring (MR).
Recommendation 4: The IAC urges both KEK and JAEA management
to transfer operational responsibilities and associated financial andpersonnel resources to the J-PARC Center management as soon as
possible. The Center should establish strong and clear lines of
responsibility for coordination of all J-PARC experimental programs tomeet the expectations of the users in a way that achieves world's bestpractice.
Recommendation 5: The IAC recommends developing and broadly
communicating a formal Operations Plan and notional funding profiles

-7-required to achieve the Phase 1 goals (0.6 MW from RCS, 0.4 MW fromMR).
Such a plan should capture the necessary hardware
improvements and their anticipated deployment schedules, thenecessary spares for high-reliability operation, the anticipated beampower trajectory, estimates of performance, and the anticipatedoperating hours available to each end user program, and time allocation
for accelerator physics studies. The IAC recommends that the various
J-PARC technical advisory committees assess these plans prior to thenext IAC meeting.
Recommendation 6 The Director of J-PARC should put in place a
proposal evaluation structure for J-PARC operations involving aCentral Advisory Committee reporting to the Director which brings
together the recommendations of the program advisory committees(PACs) for all elements of J-PARC use. We recommend that this bedone with the help of the KEK and JAEA as well as the advice of the
newly formed user committee.
Subsidiary Recommendations
The IAC cannot stress strongly enough the importance of: developing a plan for deployment of the linac energy
upgrade to achieve the ultimate performance capability of the
J-PARC complex, namely 1 MW of beam power from the RCS
and 0.75 MW from the MR
The IAC agrees with the ATAC recommendation that, if the full
funding profile is delayed, it would be timely to reconsider thetype of accelerating structure for the LINAC energy recovery
plan , including superconducting or side coupled,
IAC congratulates J-PARC in attracting funds for the 10 initial
neutron scattering instruments which will ensure a solid platform
for early operations. The IAC recommends the choice of the next
wave of instruments be very innovative and forward looking.
IAC notes the value of ATAC, NTAC and MUSAC as advisorycommittees and recommends a similar committee to oversee theconstruction and exploitation of facilities for neutron scattering
within the MLF.

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USER OPERATION

1) It is recommended, that all users go through the same office of JPARC CENTER to get experiments approved. This office should
establish common rules of procedure.
2) It is essential to have a directors advisory committee to makerecommendations on the overall program balance and theproton economy, taking into account the recommendations of
the various PACs.
3) Proposal selection mechanisms should be developed adapted tothe scale of the scientific work. For large experiments this may
involve presentation (and defense) by proponents at open
meetings.
4) The after approval process should be defined; this includes
communication of results from the PAC, feedback, schedulingprocess, management of the day to day schedule, flexibility ofscheduling, safety reviews, etc.

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GENERAL STATUS OF THE PROJECT
From the presentations and the tour of the accelerators the Committee hasformed a clear impression that J-PARC will become a world center of
excellence in the broad area of science set out in the original goals by thepartners JAEA and KEK.
The presentations to the International Advisory committee were thoroughand gave a comprehensive understanding of the amount and quality of work
done by the staff of J-PARC between March 2007 and March 2008. The
amount of work was truly impressive both in its extent and in the very
detailed problems which have been tackled and overcome. The performancetargets already reached indicate high quality construction in many aspects
and bode well for the future.
The buildings and underground spaces for the 3 GeV RCS and the 50 GeV
main ring are completed on budget and on time and are impressive. The
construction of accelerators is near completion and beam was injectedsuccessfully into the 3 GeV synchrotron. The RCS accelerated the beam toa design value of 3 GeV on October 31 2007. The accelerator delivered 50kW beam power for 4 minutes (limited only by the beam dump capacity).
This high power availability is a significant milestone. Subsequently, theRCS ejected one shot of the beam, equivalent to 130 kW, if operated at 25
Hz. The 50 GEV ring will be ready to accept beam in December 2008 andthe instruments for the Materials and Life sciences beam hall are progressing
well.
That all of this has been done on budget and on the scheduled time
established in 2006 is very impressive. Perhaps one of the most important
single achievements has been the design and construction of the mercury
target system. The collaboration with the Oak Ridge National Laboratory(USA) has been fruitful for both sides. The Japanese contribution in solving
the cavitation problem at the target window - produced by the mercury flowat high power dissipation by the proton beam is a major step towards one
megawatt operation. Another shared technology - the introduction of
bubbles into the mercury target looks as if it will also prolong target life very
considerably in high power operation. Finally the Japanese invented mercury
pump (now taken up by the SNS at Oak Ridge) has also been a significant

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feature of this collaboration - which should continue as both neutron sources
approach the one megawatt level.
The report of the N-TAC (below) has much praise for the target work andwise counsel about important details related to the best way to ensuresmooth and continuous operation from these very novel technologies.
J-PARC CENTER ORGANISATIONThe J-PARC Center is now an operational success. The IAC attributes thegreat improvement in staff morale over the last two years not only to their
dedication to the task of finishing the construction phase but also to thegrowing sense of a common achievement shared in the last year. The IAC isgrateful to the KEK and JAEA for their support of this unifying concept.
We have confidence that it will grow in value with the beginning of outsideusers operation .
We note that recommendations for a transparent organizational structurewith authority in the J-PARC Center has been recognized by the partners in
the new organizational charts shown to the IAC. Of essential value to theproject in the future, is the management of the user process by a Central
Advisory Committee (CAC) to the Director of J-PARC and a coordinatedproject management office reporting to the Director. The lines of authority
between the Director through the CAC to the individual program advisorycommittees (PACs) need to be clearly spelt out and a sensitive management
process developed with the scientific structures of KEK and JAEA,
developed within this framework. For example, the complementarity
between the excellent neutron instruments in the JRR(Japan Research
Reactor)-3 reactor and the new time of flight instruments in the Materials
and Life Science area is a great advantage to Japanese science and industry
and, possibly, international science at the Tokai campus of both KEK and
JAEA. The establishment of mutually beneficial relations between the
programs in these areas will be a long term test of the good relationships thatare developing.
Recommendation The Director of J-PARC should put in place a
proposal evaluation structure for J-PARC operations involving aCentral Advisory Committee reporting to the Director which brings
together the recommendations of the program advisory committees(PACs) for all elements of J-PARC use. We recommend that this be- 11 -

done with the help of the KEK and JAEA as well as the advice of the
newly formed user committee.
There are special and generic comments on the user program in the
Materials and Life Science sections below. Here, we wish to reinforce ourcomments from the 2007 report on both the provision of appropriate staff
and the way in which they and the user office should interact at long
distance and on the site with new users. The provision of information, thementoring and induction of users by the scientific and technical staff andeventually, the collaboration of J-PARC staff and users are matters fordeliberate policy in J-PARC are careful nurture by the management.
.

ACCELERATOR STATUS
The Accelerator Technical Advisory Committee (ATAC) for the J-PARC
Project held its seventh meeting over the period February 28-March 1, 2008.
The ATAC delivered its report during the IAC meeting.
Significant progress has been made over the last year on all fronts,
highlighted by the achievement of full acceleration and extraction of the 3
GeV beam in the RCS. The IAC joins the ATAC in offering its
congratulations on these achievements to the entire J-PARC team!
The J-PARC project is now nearly complete with construction of theneutrino beamline the sole significant construction/installation activity
remaining. Beam commissioning is well advanced in both the linac and RCS.
Hardware commissioning is underway in the Main Ring, with beamcommissioning scheduled to start in May. The schedule remains unchanged
from that presented to the IAC two years ago—an outstanding achievement.
Startup of accelerator operations in support of the research program is
expected in the 3rd quarter of JFY2008.
As the construction project nears completion there remain several areas thatwill require continued attention to assure a smooth transition to operations
and full realization of the potential of the J-PARC complex:
 Planning for the upgrade of the linac energy to 400 MeV
 Main Ring performance- 12 -

 Establishing rf accelerating systems in the RCS and MR sufficient tosupport long-term goals.
 Maximizing performance of the J-PARC complex over the first
several years of operations.
These items are discussed in detail in the ATAC report, and are summarizedherein.
Linac
The linac has been in operations at its design energy of 181 MeV for morethan a year. It is operating well and reliably, supporting commissioning
activities both within the linac itself and within the RCS. The level of
performance in the linac is sufficient to support the initial operational goalsof the J-PARC complex.
Linac Energy Upgrade Plan
The linac energy upgrade will restore the 400 MeV linac capability that was
included in the original scope of Phase 1 of the J-PARC project. With 181
MeV linac output energy, the RCS is limited to 0.6 MW beam power, andthe Main Ring is limited to less than 0.45 MW beam power. These
performance levels fall well short of the envisioned performance capabilityof J-PARC.
Recommendation: The IAC is convinced that the full potential of the JPARC complex cannot be realized with a 181 MeV linac. We therefore
urge the identification of funding for restoration of the linac energy to
400 MeV as a high priority item.
The total cost of the energy upgrade is approximately 90 Oku-yen. The
upgrade includes the construction of 21 acceleration modules, two buncher
modules, and two debuncher modules. The modules all utilize (roomtemperature) annular coupled structures (ACS). To date two annular coupledstructure (ACS) buncher modules have been fabricated and tested at highpower, and one low beta accelerating module has been fabricated andcharacterized at low power.
A “feature” of the ACS is that it is impossible to tune the accelerating
cavities after brazing. Manufacturing errors then manifest themselves as

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“field tilt” in the cavities. While the low beta module shows such a tilt, it isprobably usable as is. Nevertheless, as recommended by the ATAC, thisissue points to the importance of i) establishing ACS assembly specifications
required to accommodate the acceptable range of field tilts, and ii)
considering an arrangement that would allow tuning of the coupling cells.
The IAC agrees with the ATAC recommendation to reconsider the typeof accelerating structure, including superconducting or side coupled, forthe energy upgrade if funding is delayed by a year or two.
3 GeV Rapid Cycling Synchrotron Status
Great success has been achieved in the RCS beam commissioning. Beamcommissioning was initiated in early October and 3 GeV accelerated beam
was established by the end of the month, ahead of schedule. The RCS is
working well at low intensities and many aspects of the beam and latticeproperties are well characterized. A particularly important accomplishment
was the successful single-bunch operation of the RCS for several minutes at
a beam power of 50 kW.
The RCS is prepared to support beamcommissioning in the MR, scheduled for May. The IAC congratulates theentire RCS team on these fine accomplishments!
The expectation is that the current configuration will support 300 kW
operations in 2009.
Beam loss of 6% is observed at roughly 10% of nominal intensity in the
RCS for conditions in which the beam is not painted. It is important tounderstand the source of this loss. Possibilities might include space-charge(since the beam is not painted), optics mismatches, leakage from the rf
bucket, and/or extensive foil interactions. Continuing the commissioning
studies with injection painting to explore higher intensity operations is ahigh priority for the upcoming study periods.
The ATAC continues to be concerned about how losses are distributed on
the collimators, and in particular the possibility of uneven deposition on thecollimators that would exceed the rated capability of any single collimatorjaw.
The IAC agrees with the recommendation of ATAC that an
improvement plan should be prepared for the RCS collimator system

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that provides sufficient margin to cope with realistic operations
scenarios.
The extraction kicker impedance remains at a level that could readily lead to
instabilities at the design beam power levels. The IAC agrees that it is very
important to prepare a plan to address beam instabilities caused by the large
kicker impedance.
Main Ring Synchrotron Status & Commissioning Plan
The Main Ring (MR) installation is complete with the exception of some
injection/extraction devices and the collimators. Power testing has been
underway since December 2007. Beam commissioning at the injectionenergy of 3 GeV is scheduled for May-June, 2008. Following a summer
shutdown beam acceleration and extraction commissioning is scheduled tostart in December, 2008.
The decision has been taken to initiate operations at 30 GeV, with 6 bunches,
and a 3.0 second cycle time, to yield 100 kW of beam power at 1.2E13
protons/bunch, which is the established operational goal for JFY2009. No
specific plan was presented for moving beyond this performance level insubsequent years. The IAC believes it is very important to prepare to movewell beyond 100 kW in the years prior to the linac upgrade completion, inorder to realize the full potential of the Phase I configuration.
The ATAC recommended establishing a multi-year strategy for achievementof 400 kW performance in the MR with the 181 MeV linac, based on the
April 2009 configuration as a starting point. Such a strategy could include
any or all of the following: 8 bunch operations, reduced cycle time, second
harmonic operations of the MR rf system, increasing the loss budget at 3
GeV, h=18 operations of the MR, h=1 operations of the RCS, and/or meansfor providing longer bunches from the RCS.
The IAC agrees with the recommendation of ATAC that a multi-year
strategy be developed for achieving 400 kW MR performance with the
181 MeV linac.
Several technical issues were highlighted by the ATAC that will need to beaddressed in order to reach ~400 kW. These include

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 Poor risetime of the fast extraction kicker that limits operation to 6
bunches (rather than 8 in design) The need for a 6th RF station to reduce the cycle time from the present
3.0 seconds to the necessary 2.0 seconds.
 Beamloss simulations predict 330 Watt, compared to the loss limit of
400 W, for 200 kW operation
 Machine impedance and beam instability issues threaten to limit
operation to a few hundred kW. These investigations need to beextended, utilizing the full capability of existing simulation codes toestimate instability thresholds.
The IAC concurs with the ATAC recommendation to i) continue
instability analysis, utilizing existing multi-particle simulation tools toestimate instability thresholds under realistic conditions, ii) develop atransverse damper, iii) investigate whether chromaticity is effective forbeam stabilization, and is consistent with the required dynamic
apertures requirements.

RCS & Main Ring RF System
Currently 10 RF stations are installed in the RCS and 4 stations in the MR.
The RCS stations are performing well and have accumulated roughly 500
hours of operations. The RCS stations utilize un-cut cores, with external
inductors. The MR stations utilize cut cores, according to the plan developed
a year ago.
It has been found that more voltage than anticipated is required to accelerate
the RCS beam without loss. As a result cavities are being operated at higher
gradients than the ATAC had suggested. (ATAC suggested running withlimited field (85% of design) in RCS. Current operation is close to 100%.)
It is extremely important to understand why the voltage seen by beam islower.
11-12 stations are required in the RCS to support 0.6 MW beam power. The
ATAC recommends to prepare for installation of 12 rf stations in the RCS inorder to realize the pull performance potential of the RCS.

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6-7 stations are required in MR to support Phase 1 potential of a 2.0 second
cycle at 30 GeV. The ATAC recommended preparation for installation of atleast six rf stations to realize the full potential of in the MR in Phase 1.
While the installed RCS RF stations have operated ~500 hours (with uncut
cores), the ATAC remains concerned about the long term performance of the
RCS and MR RF systems. The ATAC is concerned that there is nomonitoring for any incipient degradations, and therefore encourages thedevelopment of a monitoring strategy.
The ATAC has supported investigation of oil filled cavities as a long termsolution, particularly for the MR. Design work has been initiated in thisalternative, but the ATAC recommends strengthening the effort invested in
the study of oil cooling with the goal of a full scale demonstration on an MR
cavity within 2-3 years.
The ATAC reiterates strongly the need for having an RCS and MR type rf
systems available outside of the rings to pursue testing and development.
Realizing the Full Potential of the J-PARC Complex
At this stage of the Project, it is natural that the efforts of the staff arefocused on the very near-term challenges and stresses of meeting project
installation and commissioning milestones and project performance goals.
Further, with the uncertainty in the operating budget in the out-years, it ismore difficult to develop detailed operating plans. While this emphasis on
the near-term is understandable, the IAC would like to emphasize thecentral importance at this time in the Project to re-focus attention onachieving the ultimate goals of the J-PARC complex, namely a worldclass, robust materials and life science program enabled by 1 MW of beam
power delivered by the RCS, and a world-leading particle physics program
enabled by 0.75 MW of beam power delivered from the Main Ring.
To that end the IAC cannot stress strongly enough the importance of: Securing a realistic operating budget with sufficient support
for spares and the inevitable capital improvements that will
be required as a result of lessons-learned during beamcommissioning Developing an operations plan to achieve the Phase 1
performance goals for the accelerator complex, namely 600
kW from the RCS and 400 kW from the MR

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 Securing funds to begin immediately the linac energy
recovery project to increase the linac output energy to 400
MeV Developing a plan for deployment of the linac energy
upgrade to achieve the ultimate performance capability of
the J-PARC complex, namely 1 MW of beam power fromthe RCS and 0.75 MW from the MR
The IAC shares the concerns expressed by ATAC and NTAC regarding theavailability of spare components as J-PARC prepares to enter the operations
phase. The committee was told that ~10 Oku-Yen is required to acquire thecomplement of initial spares. Procurements for high cost “consumables”,
such as klystrons and target modules, need to be put in place very quickly inorder to avoid the possibility of an extended interruption.
As beam commissioning progresses, the team identifies limitations in theexisting hardware that must be corrected early in operations. The
identification of weak components early in commissioning, and theirsubsequent correction or replacement is an inevitable process that has been
repeated at all large accelerator facilities. Already there is a substantial listof hardware components and systems that will have to be redesigned,
refurbished, enhanced or even replaced. This list includes additional RF
stations in the MR and RCS, a transverse damper system for the MR, newextraction kickers for the MR, potential improvements in the collimation
systems and so on. This history speaks to the need to secure an adequate
capital improvement funding in the early operations budgets at a level of 510 Oku-Yen.
Recommendation: The IAC recommends that sufficient funds be set
aside within the J-PARC operating budget to secure an appropriate
level of spares and to support modest improvements to the J-PARC
complex with a goal to providing 0.6 MW from the RCS and 0.4 MW
from the MR prior to the completion of the linac energy upgrade.
Some progress has been made in defining the accelerator performance
specifications through JFY2009. This effort needs to be continued to chart
the path to the full capability of Phase 1.
Recommendation: The IAC recommends developing and broadly
communicating a formal Operations Plan for achieving the Phase 1

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goals (0.6 MW from RCS, 0.45 MW from MR), under the assumption ofadequate funding. Such a plan should capture the necessary hardware
improvements and their anticipated deployment schedules, thenecessary spares for high-reliability operation, the anticipated beampower trajectory, estimates of performance, and the anticipatedoperating hours available to each end user program, and time allocation
for accelerator physics studies. The IAC recommends that the various
J-PARC technical advisory committees assess these plans prior to thenext IAC meeting.
Having accomplished the Phase 1 level of performance, the full potential of
J-PARC is not realized without the 400 MeV Linac energy upgrade. Only
with the energy upgrade will the MR performance of 0.75 MW remaincompetitive on a world scale, as already emphasized several times in thisreport.
HADRON EXPERIMENTS
Excellent progress has been made during the past year on civil
construction in the Hadron Hall. Development of instrumentation for two
beam lines, K1.8BR and K1.8, is well under way, with plans to delivercharged kaon beams to these lines in December 2008 and October 2009,
respectively. The IAC was shown tentative plans to complete an additional
neutral kaon line (K0) in the 2009-2010 period. There is an engaged user
community that has made many proposals for experiments in Hadron Halland is busy building much of the needed detection equipment. The Nuclear
and Particle Physics Program Advisory Committee has already approved
5200 hours of beam time at an assumed primary beam power level of 300
kW, and an additional 15000 hours of beam time proposals already haveStage 1 approval. The user community expressed a strong desire for
improved primary beam power, for additional beam lines and for moreresource support from J-PARC in mounting experiments. In engaging theuser community in a dialogue regarding these requests, it is essential that JPARC management begins soon to establish priorities and a target scheduleamong the experiments.
The early experiments that were described to the IAC in the most detailform a varied program with lines K1.8BR and K1.8, studying hadronicinteractions and nuclear spectroscopy in the strangeness sector. The
K1.8BR line would house two experiments (E15 and E17) searching for- 19 -

effects of a hypothesized deep nuclear potential binding K to nuclei. E15
would search for a bound Kpp system via the reaction 3He(K,np),detecting all final state particles. E17 would use X-ray spectroscopy
following atomic capture of K by 3He to determine the strong interaction
from the width and shift of the atomic 2p state. Target and detection
equipment for these two experiments appear well matched to the beam
delivery schedule. Both experiments have international competition andwould benefit greatly from an early demonstration of beam power well
above the 100 kW level available in the slow extraction mode from theMain Ring. Beam line K1.8 would be home to a program of hypernuclear
spectroscopy, featuring doubly strange nuclei prominently, utilizing the SKS
magnetic spectrometer and a Germanium Hyperball-J to detect hypernuclear
gamma rays in coincidence with the charged reaction product. The Japanese
teams proposing these hypernuclear experiments are the world leaders andthey have little worldwide competition.
The above experiments are likely good commissioning experiments for the
Hadron Hall. Higher impact, but longer-term, experiments in nuclear andparticle physics were mentioned only in passing during the presentations.
These include a search for CP violation beyond the Standard Model via therare decay branch KL00¯
a search for charged lepton flavor violation via -to-e conversion in thefield of a nucleus (PRISM project), and a refined measurement of themuon’s anomalous magnetic moment (g-2), which already shows atantalizing discrepancy from the best Standard Model calculations. Serious
international competition for each of these experiments is currently underdiscussion at Fermilab and (in the g-2 case) at the AGS at Brookhaven.
These experiments would all benefit greatly from the increased beam power
provided by the linac upgrade to 400 MeV, and could help to establish aworld leadership position for J-PARC in nuclear and particle physics, if they
can be performed on competitive time scales. The likely cost for detection
equipment for each of these experiments is in the many tens of Oku Yen
range.
Given the above options, it is clearly important for J-PARC management
to decide soon, in collaboration with the user community, on priorities
among the linac upgrade, new hadron hall beamlines, and additional support
for high-profile experiments. The IAC urges the management to decidesoon on the one or two experiments in nuclear and particle physics on which- 20 -

it hopes to stake its claim to world prominence in these fields, and toallocate resources and support collaboration-building accordingly. In
parallel with this decision, it is also important to engage the community in arealistic discussion of the likely evolution in beam power and a suitable
schedule for experiments during the next few years.
Recommendations (these could clearly be subsumed in more generalrecommendations):
The IAC recommends that J-PARC management develop a plan forresource allocation priorities to optimize the scientific impact of the
facility in both the short and long terms. Such a plan should designate a
few specific high-impact experiments or programs with which thefacility can establish its reputation, in competition with analogous
facilities world-wide, in light of realistic assessments of operations
funding and upgrade timelines.
The IAC recommends that J-PARC management improve the dialogue
with users concerning a scheduling and facility development plan,assembled in the light of best guesses concerning operations funding,beam power evolution, equipment readiness, worldwide competitionand scientific priorities.
NEUTRINO EXPERIMENTS
The T2K experimental program is based on the neutrino beam underconstruction as part of the J-PARC facility and the SuperKamiokande
detector approximately 295 km distant. The experiment will explore
important parameters within the neutrino sector, in particular the mixing
parameter sin2213 with a sensitivity beyond that achievable in theupcoming round of reactor-based experiments currently in preparation (Daya
Bay). The understanding of this parameter provides a “gateway” to the more
fundamental understanding of the neutrino mass hierarchy and possible CPviolation in the neutrino sector. These questions have potential implications
for our understanding of the asymmetry between matter and anti-matter inthe universe.
T2K is organized as an international collaboration involving 61 institutions
from 12 countries, with a total of 400 individual collaborators currently
involved. The organization and management of a collaboration involving

- 21 -

such a large number of institutions spread over several continents, andsupported by a multitude of funding sources, represents a challenge. Overthe last year a T2K International Organization has been formed that meetsthese challenges. The organization includes bodies for coordinating effort
and financial support from the participating institutions, for mapping thescientific strategy, for operating the detectors, and for analyzing andpublishing results. The IAC views this organization as capable of effectively
coordinating the T2K effort. The T2K experiment is integrated in the JPARC centre as part of the Particle/Nuclear physics division. Most of therequired funding is in place and agreements have been reached on the costto completion for common items. Discussions are under way with thefunding agencies to establish common operating funding for shared items
Construction of the neutrino beamline at the J-PARC facility is welladvanced and is on track for startup in April 2009 as previously scheduled.
This is consistent with the J-PARC Main Ring schedule which shows a April
1, 2009 startup of neutrino operations for a three month low intensity run,followed by a two month shutdown, followed by an extended run at 100 kW
of beam power.
The short term goal of the T2K collaboration is to integrate 100 kW  107
seconds of beam on target by the summer of 2010. This goal is consistent
with the performance projected by the J-PARC accelerator team, assuming
approximately equal sharing of the Main Ring beam between the neutrino
and hadron programs. Such an exposure would allow the publication ofcompetitive physics results later in 2010. The natural next step would be an
exposure of approximately 300 kW  3107 seconds. It would be desirable
to achieve this exposure over a period extending over 2011-2013. To meetthe ultimate goals of the experiment the T2K collaboration is requesting 750
kW  5107 seconds of beam on target. This exposure gives a sensitivity
that exceeds that of the Daya Bay experiment over half the range of possible
values for the CP violating phase,. (90% sensitivity for sin2213 < 0.008 at
=0). The IAC notes that this goal is highly unlikely to be met in a timely
manner without an upgrade of the linac energy to 400 MeV.
The IAC has had some concerns in the past with respect to mismatch of
expectations between the experimenters and the accelerator group.
Presentations of the two groups at this meeting were well aligned, indicating

- 22 -

good communications. This is important to prevent problems of mismatched
expectations.

COMPUTER NETWORKS AND REMOTE ACCESSGood progress was reported on the Information System to be provided
at J-PARC. The current activities are aimed at implementing basic user
services through a new JLAN network. It is anticipated that up to 960 users
can be connected by March 2008. A major upgrade is scheduled for thisupcoming year (Phase -2).However so far during commissioning of the
JLAN system, access is limited to internal staff . This will quickly need to
be extended to outside users as the science program is about to begin. The
focus of the effort has been in setting up a user database to provide the basic
administrative services (room reservation, travel, registration, computing
access, radiation training etc) The IAC reiterates that another layer is criticalfor outside users in particular.
It will be an expectation that all visitors to the J-PARC campus are able toachieve seamless wireless access to facilitate interaction with their homeinstitution via open access to the internet from within the J-PARC Center,
Guest House and Support Laboratories. As installation of the very large
international T2K experiment will start in earnest this coming year, the T2K
collaboration will be the testing ground for many of the IS services at JPARC., but this will also be the case for all external users getting ready forthe fall 08 beamtime.
The IAC recommends that the JLAN phase 2 program be implemented
at the earliest possible time in anticipation of the start of the scientificprogram in JFY08.
Some J-PARC users will require restricted and controlled access to J-PARC
systems, in order to monitor experiments and access data. Some specificcollaborators will require privileged access to J-PARC system in order toremotely control experimental systems and diagnostics.
They have also already identified the need for experts resident in partner
institutes worldwide to have such access to systems associated with theirexperiments or with the beam delivery systems.. Such privileged access –with administrator authority over appropriate subsystems – is standard forinternational laboratories – but needs to be limited and demonstrated to be
secure with respect to JAEA systems.

- 23 -

MATERIALS AND LIFE SCIENCES
Target System
The N-TAC Committee report was delivered verbally to the IAC on 3 March
by Dr G Bauer. The committee's admiration for the work done in 2007 wasclearly expressed in the summary of its recommendations and in the detailed
advice on the target system as the J-PARC system enters the operational
phase. Their summary spoke of truly impressive progress. Target vessel
structure, seal performance, remote handling, alignment, target vessel
maintenance and trolley maintenance, functional performance andinstallation alignment readiness checklists are all completed.
In the view of N-TAC, completing all of this was a major accomplishment
and the team should be congratulated.
For the target there was recommended continuing work program to re-design
the proton beam window to incorporate more beam diagnostics and that thisshould be pursued with priority and the window should be exchanged assoon as the new one becomes available. The present one can then be kept asa backup-spare.
Detailed advice from the committee:•••

Target Trolley remote handling checklist tasks remaining are grease
application to the trolley rail and replacement of the slide unit.
Greasing with remote handling tooling can be difficult and this testingshould be done early to determine if tooling modifications are needed.
A great deal of detailed commissioning work remains to be done in
the Hot Cell areas. Time is limited and there may well be competition
for resources (e.g the Power Manipulator) so detailed management
will be required
As concerns the excellent progress with Remote Handling Devices•
Equipment to replace the major components is in good
shape,•
Some difficulties have been found often with viewing –consideration should be given to installing a movable
camera (e.g. held by a master slave manipulator or on a
tripod),- 24 -

•

•

•

•
•

Maintenance of some of the services in the hot cell (e.gcameras, cabling) appears to be very difficult by remotemeans – the requirements should be checked,
During testing consider keeping a list of ‘vulnerable’
activities – i.e. those where recovery from equipment
failure would be particularly difficult,
For the moderator change some work is needed to
improve the collection of residual water from the circuits,
after drain down, to limit spillage
Remote handling of Muon target and components in the
Hot Cell remains to be demonstrated and that,the management should undertake commissioning of themuon target replacement in hot cell as an ‘indispensable’
item for Day-1

Cavitation Erosion
Here again more excellent progress was reported on understanding of thecavitation erosion (CE) -mechanism. An important conclusion was that a
distribution of bubble sizes may be most effective in damage mitigation. The
situation is that the probable target life time is still difficult to predict due tounclear effects of geometry and flow conditions but that the measuresforeseen to evaluate damage potential on real target are comprehensive andlook promising.
N-TAC evaluated plans for future investigations (effect of pulse duration
and bubble transport in target) and concluded that••they are well thought through and should be fully supported and that,the new pressure wave generator (AUTOLITH® spark device) is aperfect complement to MIMTM

The committee recommended that collaboration with SNS (Oak Ridge)
team remains very important (use of TTF and WNR) and should be
extended to include PIE activities on the first SNS target.

- 25 -

Control System and Buildings
The N-TAC reports that the MLF General Control System is in good shapeand it appears that the remaining work can be completed in time. Also thesettlement (under loading from the instruments and shielding at this stage) of
the MLF building is close to the predicted values. The distortion (unevensettlement) of the experimental hall floor is within acceptable limits but realignment of the proton beam in the MLF building may be required as theloading on the building changes.
Control and Diagnostic Instruments
•
•

•

•

The instrumental diagnosis for radiation safety seems to be very well
prepared.
There should be shielding in place around the mercury filter and themolecular sieve column in the off gas process system before medium
power levels (ca. 100 kW) are reached.
Silicagel absorbs not only HTO but also H2O, which should beconsidered in the capacity and in the operating period of the systems
ability to hold back tritium.
The hot cell ventilation system should be monitored for mercury toestimate the loading of the filters (e.g. by air sampling).

SparesN-TAC commented specifically on the need for a spares policy for the target
system and instruments. In particular it was suggested that:••

As far as the operating budget allows, most critical parts should be
kept in stock to remain independent from vendor availability anddelivery time.
The spare part problem concerns especially electronic equipment,
where products life cycle becomes shorter from year to year.
As far as the operating budget allows, most critical parts should be
kept in stock to remain independent from vendor and delivery time.

- 26 -Start-up Procedures and Documentation
•

•

•
•

The readiness checklists should define criteria and numbers and also
the set-points (H,HH & L,LL) for alarms and system actions. Thesecan be temporary default values, to be adapted to the needs of theprocess, when the final operating conditions of the systems are known.
There should be one single open issue list to keep track of the
progress made in the check lists of the many individual systems. The
open issues are closed and documented in only one single version
when decisions have been made about the handling the issues bysystem engineers and project management.
Consider keeping a master list of just the remaining status B and C
items.
Consider having a review to ensure all ‘indispensable’ items havebeen identified and whether some could be re-classified as‘preferable’. This review should include preparation of any required
operational procedures and operating parameters/limits in all
acceptance criteria.

Overall Comments On Systems
The N-TAC advised that all systems appear to be extremely well engineered,
the fabrication and installation looks very professional and the level ofcleanliness is exceptional, there has been adequate attention given to remotehandling operations and maintenance.
Assuming success for the hydrogen system testing, the systems can be
expected to be ready for beam in May. The next level of preparation will
involve documenting procedures and establishing operating limits and alarmlevels for the process variables.
The N-TAC overall conclusion is that the performance of the JSNS team has
so far been outstanding but expressed its concern about the extremely tightbudget. In particular:
The target team is clearly understaffed. The committee notes that a certain
work overload is normal towards the end of a project, but care must be taken
for it not to lead to unnecessary mistakes.

- 27 -The team has so far managed to cope with severe budget restraints
remarkably well, but one serious consequence clearly, is the lack of spareparts. They feel that this might become a serious problem.
Also, important R&D to solve existing difficulties must be properly fundedin order to secure successful full power operation and high availability of the
facility. Nevertheless, we do not see any obvious reason why JSNS should
not meet its readiness criteria in the near future.

NEUTRON SCATTERINGThe International Advisory Committee notes with pleasure the progressdescribed at its meeting and seen on the floor of the MLF building - in theconstruction of the instruments for neutron scattering. The projected use ofvery large detection areas, some new detector developments of great interestand the high flux to be delivered from the target offer great promise for thework to be done with the first group of instruments installed.
The parallel development of detectors and ancillary equipment, despite thehigh load on staff to produce the instruments ready for beam in 2008-2009,is commended. These ancillary devices such as high pressure, variabletemperature and the associated laboratory facilities needed for the user
program are essential aspects of user-oriented neutron scattering programs.
The continued developments of ancillary devices as well as data processing
and new instruments should be a very high priority as the operational phaseis entered and continues.
Oversight of Experimental Systems in the MLF sector.
The IAC discussed the best method to give oversight to the future
development of neutron instruments and the program of development ofthem as well as their user orientation. The technical aspects of the source
are well covered by the ATAC/NTAC committees, and although a forum(MUSAC) exists for muons, there was no high level advisory committee totake an overview of the development of the neutron instrument suite and of
the overall user “experience” for the MLF (everything from standardised
sample environment to pre-, during and post- experimental support as wellas the user office culture for example.

- 28 -

Recommendation
IAC notes the value of ATAC and NTAC and MUSAC as advisorycommittees and recommends a similar committee to oversee theconstruction and exploitation of facilities for neutron scattering within
the MLF.
Future Development of the Neutron Instrument Suite
The IAC is strongly encouraged by the success of J-PARC in attracting
funds to develop ten initial, high quality neutron scattering instruments for
the MLF programme. The scope and variety of this suite makes the initial
performance of the MLF highly credible on the international scale. A periodof consolidation is now necessary to ensure that these instruments areresourced to deliver their maximum performance, and for the Japanese andinternational scattering communities to appreciate their potential.
Drawing on experience gained at the new level of source performanceafforded by J-PARC, there is an opportunity to be adventurous in theselection of the next set of instruments to be very innovative, building on,
rather than simply reproducing developments at the previous generation ofreactor or spallation sources.
MLF MUON FACILITY
The Phase I muon facilities are nearing completion and the very hard workof the team to meet the milestone of May 08 for first beam commissioning
has paid off. The meticulous execution of the project is truly impressive. The
proton beam line has been evacuated and the vacuum achieved is well within
specification. Cabling and plumbing is continuing to meet the September
deadline for beam-on commissioning. No road blocks are envisaged at thisstage.
On day one, only one muon channel will be available. The reconditioned
KEK superconducting solenoid has been installed and should be ready intime for commissioning in September 08 to insure muon production to users
during the planned two month cycle of beam delivery later in the fall. It is
crucial to deliver an early physics output from this first muon channel so as
to provide the incentive for the muon user community to seek alternative
supplementary funding for core user projects and hence complete the MUSE

- 29 -

facility as early as possible. Attracting foreign users and industrial
investments is directly linked to having an early minimal initial programavailable at start up. The committee congratulates the MUSE team fordelivering on its promises to have an operational facility by September 08.
Amongst the Phase 2 projects, the committee reaffirms its support fordeveloping a unique ultra slow muon source based upon the technique oflaser ionization of thermal muonium atoms. The committee supports therecommendation of MUSAC to form a task force to identify a pathway torealizing ultra slow muon beams as soon as possible as it is seen as the mostinnovative and unique opportunity for Muon users in Japan.

USER INTERFACE
In a multi-disciplinary facility such as envisaged for JPARC, the userinterface has many dimensions. These include:
•
•
•
•
•
•

Communicating opportunities afforded by J-PARC to a wide-ranging
scientific field
Developing the appropriate peer review processes to ensure abalanced programme
Scheduling and organising support before during and after
experiments
Creating the appropriate safety culture for JPARC Users
Delivering feedback from to users to the facility, enhancing futurecapabilities
Publicising success and broadening the appeal of JPARC in newcommunities

All of these need to be developed and refined in the coming months.
Creation of a User Office is a critical next step for J-PARC. It will define
the culture of many aspects of life for the J-PARC user community and has
the potential to develop harmony with the wider user community at Tokai,
including, for example, users of JRR3-M.

- 30 -NUCLEAR TRANSMUTATIONThe IAC was pleased to hear that the recommendations made in its 2007
report have led to successful developments and that important work has been
undertaken within OECD/NEA, IAEA, Asian countries (China, India andKorea) and Europe. Strong links have been established in particular with themost active European partners in the EUROTRANS framework (33 researchorganisations and 16 universities). Important synergies were found in the
recent workshop dedicated to transmutation research in Europe and Japan(FZK, 27-28 February 2008).
The IAC recommends that a long term common strategy intransmutation experiments and ADS research be developed. Japan
collaboration is most welcomed in European programs and JPARC futuretransmutation program appears as one of the best complement to theEuropean 6th and 7th Framework Programs. The considerable knowledge ofJapan in accelerator development, design and safety studies in ADS, fuelstudies, materials science, and nuclear data is fundamental to expand thefrontier of knowledge in safe and reliable nuclear waste management.
The IAC strongly encourages JAEA to develop detailed concrete
experimental proposals using JPARC future TEF facility withEUROTRANS partners for the study of advanced nuclear fuels andtransmutation technology in both fast breeders and accelerator driven
systems. JPARC will be able in phase 2 to host a new generation ofexperimental work and become the world leading facility in an innovative
area of nuclear waste management.
The experimental transmutation program needs the full power of
JPARC foreseen in the construction of phase 2. The IAC believes that thisprogram as others would considerably profit from the integration ofsuperconducting cavities in the phase 2 of the accelerator in particular forthe development of highly stable beams, one of the focus of accelerator
research today.
In 2007, the Intergovernmental Panel on the Climate Change has
included acknowledged nuclear power among the commercially available
climate change mitigating technologies. This is the first time that this United
Nations panel acknowledges the importance of nuclear power in the fightagainst global climate change. It is now expected that nuclear power will
expand, but safety, proliferation and waste remain major preoccupation ofmost countries. Some of the most important concerns will only be answered

- 31 -by experimental studies of partition and transmutation. It is expected that
future fast breeders will burn a significant fraction of nuclear wastes (minor
actinides). But, this will require a complete understanding of transmutation
processes in the new generation of innovative (radioactive) fuels.
European and international programs have recently confirmed theirsupport to ADS research in order to fully understand the burning of nuclear
wastes using a complementary approach to reactor research. A new French
law imposes research both on transmutation in reactors and on ADS in theEuropean 7th FP. The question is whether it will be possible to burn verylarge quantities of actinides in non dedicated systems. Complex innovative
fuels do not yet exist and transmutation processes will need to be validated
by experimental demonstrations. Massive burning of nuclear wastes may
require specific dedicated systems based on ADS.
Academic commitment in Japan is of great importance to giveconfidence to public opinion in the future of nuclear power. Confidence ofthe public opinion is the key to the expansion of fast breeders in Generation
IV. This is a general observation in all the countries interested in the
expansion of nuclear power. All are aware of the need to establish strong
links between academic research and industry to remove the obstacles
observed in the past. Moreover, there is a considerable need to build a newgeneration of scientists and engineers over the next 20 years. Education andtraining in JAEA’s facilities in Tokai, advanced reactors and JPARC offers
unique opportunities to strengthen a unique combination of research andengineering.
The IAC endorses the strong commitment of JAEA in the preparation of the
AEC “5-year plan”. The IAC recommends that major efforts are undertaken
to build a strong research and development community bridging academic
and industry technology research.

- 32 -

APPENDIX IAgenda for the 7th International Advisory Committee Meeting
J-PARC
Date: March 3 (Mon) and March 4 (Tue), 2008
Place: J-PARC Center – Tokai
March 3 (Mon)8:50 - 9:10

Executive Session (Closed)
Committee + Nagamiya, Oyama, Yamazaki

9:10 – 10:10

Status of J-PARC

10:10 – 10:30-- Coffee Break –10:30 – 12:00

Accelerators- Progress report- A-TAC report

12:00 – 13:20

S. Nagamiya/Y. Oyama

Y. Yamazaki / A. Ando
S. Holmes-- Lunch –13:20 – 14:50
Nuclear and Particle Physics Experimental Facility(13:20-13:45)- Hadron Experiment
H. Tamura(13:45-14:05)- Hadron Facility
K. Tanaka(14:05-14:50) - Neutrino Experiment
K. Nishikawa
14:50 – 15:20-- Coffee Break –15:20 – 17:00(15:20-16:05)(16:05 -16:20)(16:20 -16:45)(16:45-17:00)
17:00 – 18:00

Material and Life Science Experimental Facility- Progress report of Neutron
Y. Ikeda- N-TAC Report
G. Bauer- Progress report of Muon
Y. Miyake- MUSAC report
J.-M. Poutissou
Closed Session

18:30 -

Reception (Akogi-ga-ura Club)

March 4 (Tue)8:50 - 9:10
9:10 - 9:30
9:30 - 9:50

Executive Session (Closed)
KEK and J-PARC
JAEA and J-PARC

9:50 – 10:15-- Coffee Break –10:15 – 10:45
10:45 – 11:00
11:00 – 11:15

Nuclear Transmutation
Information System
Users Office

11:15 – 12:15

Closed Session & Working

12:15 – 13:15-- Lunch –A. Suzuki
H. Yokomizo

H. Oigawa
A. Manabe
M. Ieiri

- 33 -

13:15 – 14:30-- Site Tour --14:30 – 15:30

Working Hour

15:30 – 16:00

Summary Session
Adjourn

- 34 -

APPENDIX II
Committee Members
BEIER. Eugene

Professor, University of Pennsylvania
geneb@hep.upenn.edu

CHEN, Jia'er

Professor, Peking University
chenje@pku.edu.cn

FROIS, Bernard

Director, CEA - Saclay, France
bernard.frois@cea.fr

FUKUYAMA, Hidetoshi

Professor, Tokyo University of Science,
fukuyama@rs.kagu.tus.ac.jp

HENDERSON, Stuart

Director, Research Accelerator Division, SNS, Oak Ridge,
shenderson@ornl.gov.

HOLMES, Steve

Associate Director, Fermilab, USA. holmes@fnal.gov

PETITJEAN, Claude

Science coordinator, Laboratory of Particle Physics, Paul
Scherrer Institute, Switzerland. claude.petitjean@psi.ch

POUTISSOU, Jean-Michel Associate Director, TRIUMF, Canada.
jmp@triumf.ca
SUZUKI Yoichiro:

Director, Institute for Cosmic Ray Research,
University of Tokyo. suzuki@icrr.u-tokyo.ac.jp

TANAKA, Satoru,

Professor, University of Tokyo, s-tanaka@q.t.u-tokyo.ac.jp

TAYLOR, Andrew

Director, RAL and ISIS, UK. adt@isise.rl.ac.uk

VIGDOR, Steve

Associate Director for Nuclear and Particle Physics,
Brookhaven National Laboratory, vigdor@bnl.gov

WHITE, John W.
(Chairman)

Professor, Australian National University
Canberra, Australia, jww@rsc.anu.edu.au