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     ![](media/image1.wmf){width="0.44166666666666665in"                    
     height="0.41597222222222224in"} **Fermilab Directorate**               

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**MEMORANDUM OF UNDERSTANDING**

**FOR THE 2005 MESON TEST BEAM PROGRAM**

**T950**

**Vacuum Straw Tracker Test Beam Run**

**August 4, 2005**

INTRODUCTION 3

I. PERSONNEL AND INSTITUTIONS: 4

II\. EXPERIMENTAL AREA, BEAMS AND SCHEDULE CONSIDERATIONS 4

III\. RESPONSIBILITIES BY INSTITUTION - NON FERMILAB 5

IV\. RESPONSIBILITIES BY INSTITUTION - FERMILAB 5

4.1 Fermilab Accelerator Division 5

4.2 Fermilab Particle Physics Division 6

4.3 Fermilab Computing Physics Division 6

4.4 Fermilab ES&H Section 6

V. Summary of Costs 6

VI\. SPECIAL CONSIDERATIONS 7

SIGNATURES 8

Appendix I - prep equipment pool needs 9

APPENDIX II - Hazard Identification Checklist 10

INTRODUCTION

This memorandum of understanding requests beam time at Fermilab during
the 2005 Meson Test Beam run to measure the detection inefficiency of
vacuum straw tubes. One of the future kaon experiments at J-PARC has the
goal to measure the branching ratio of the neutral kaon "Golden Mode"
K~L~π^0^ ν ν with a few hundred event sensitivity. This future J-PARC
experiment is a follow up of a current KEK experiment, E391a which has
been taking data since February 2004. E391a is a collaboration of five
countries (Japan, United States, Russia, Korea, and Taiwan) with ten
institutions (KEK, Saga U, Yamagata U, Osaka U, U of Chicago, Pusan U,
JINR, NDA, Kyoto U, National Taiwan U, and RCNP).

The branching ratio of K~L~π^0^ ν ν is small, about 3x10^-11^. To first
order, all kaon decays with final states with charged particles need to
be vetoed, and those include K~e3~, K~μ3~, and K~+-0~ (about 80% of all
neutral kaon decay). The standard and typical veto power comes from
sheet scintillator and may not be adequate. Vacuum straw tubes provides
additional, independent and orthogonal veto power, but the detection
inefficiency has not been known or measured in a detail way. The
inefficiency of the straw has three sources, the electronics, the straw
wall/wire, and the gas. We like to perform beam test to measure all
three sources.

There is much experience in straw detector technology, and some in
vacuum straw technology (CKM R&D effort). The possible use of straws in
the future K~L~π^0^ ν ν experiment will allow absolute photon/electron
energy calibration (via K~+-0~ decays), possible measurement of photon
inefficiencies (via K~000~ with π^0^ Dalitz), and as mentioned, charged
particle veto. The results of this proposed beam test will provide new
knowledge on the absorption cross section and will direct us on design
issues for future neutral kaon decay experiments.

Regarding the straws, lots of R&D work has been done by the CKM
collaboration, and we plan to use as much existing straws setup and
related equipment as possible.

This is a memorandum of understanding between the Fermi National
Accelerator Laboratory and University of Chicago High Energy
experimenters who have committed to participate in beam tests to be
carried out during the Summer-Fall, 2005 MTBF program. The memorandum is
intended solely for the purpose of providing a budget estimate and a
work allocation for Fermilab, the funding agencies and the participating
institutions. It reflects an arrangement that currently is satisfactory
to the parties; however, it is recognized and anticipated that changing
circumstances of the evolving research program will necessitate
revisions. The parties agree to negotiate amendments to this memorandum
which will reflect such required adjustments.

# **I. PERSONNEL AND INSTITUTIONS:**

Spokesman and Physicist in

charge of beam tests: Yau Wah, The University of Chicago.

Fermilab liaison: Erik Ramberg

The collaboration members at present are:

1.  The University of Chicago: Robert Lucero, Marvin Lowenthal,
    Elizabeth Pod, Yau Wah

2.  Osaka University: Mitsuhiro Yamaga, Taku Yamanaka

3.  Fermilab: Hogan Nguyen, John Krider

# **II. EXPERIMENTAL AREA, BEAMS AND SCHEDULE CONSIDERATIONS**

1.  LOCATION

    1.  The experiment is to take place in the MTEST beam line and
        located in the area designated MT6-B2. In addition, the main
        control room to the west of the MTEST line will be used to house
        electronics (up to two 19" racks of electronics)

    2.  Additional work space will be needed in this control room,
        equivalent to at most two 6'x3' tables. This space will be used
        for computing and general work space.

2.  BEAM

    1.  The tests require a beam of tagged, charged particles (both
        negative and positive pions and protons) with energy range from
        lowest possible (\~4 GeV) to about 10-20 GeV. Most runs will be
        performed at 10 GeV.

    2.  Intensity: Variable, in the range of 1-10 KHz in an area of 1
        square cm.

    3.  We will make use of the 4 second slow spill every 2 minutes,
        coming from the Main Injector. We are modifying our DAQ to take
        advantage of this scenario.

    4.  We anticipate some parasitic running during the test beams for
        other experiments if needed.

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2.  SETUP

    1.  At least one full day of access to the experimental area will be
        needed to set up the straw stand. This includes not only the
        silicon telescope planes and mechanical apparatus, but also the
        cable work.

    2.  At least one additional day will be needed to install and debug
        the DAQ and NIM logic associated with the trigger. This would
        require only sporadic access.

    3.  Some cabling to the counting room is needed. We have allowed one
        day of setup time. An outline of our cable needs between
        counting house and MT6-A2 include:

-   Mini drift chambers (3 cond. for power, 6 cond. ribbon,)

-   Vacuum straws (3 cond. for power, 6 cond. ribbon, 16 RG58 BNC coax)

-   Trigger scintillators (5 RG59 SHV for voltage, 38 RG58 BNC coax)

-   Power, Ethernet, DAQ interconnection cables (in counting house)

3.  SCHEDULE

2.4.1 We are planning on beginning tests in the Fall of 2005.

2.4.2 We are requesting a few days of setup time followed by 1-2 week of
regular data taking. Each run will consist of a few hours of
measurements. Access to the experimental area will be needed only if
equipment needs to be serviced and/or aligned.

# **III. RESPONSIBILITIES BY INSTITUTION - NON FERMILAB**

> (\[\] denotes replacement cost of existing hardware.)

1.  University of Chicago: 3 Mini drift chambers with electronics
    readout and power supplies \[30K\]

**IV. RESPONSIBILITIES BY INSTITUTION - FERMILAB**

(\[\] Denotes replacement cost of existing hardware.)

## 4.1 Fermilab Accelerator Division:

1.  Use of MTest beam during our scheduled time.

2.  Maintenance of all existing standard beam line elements (SWICs, loss
    monitors, etc) instrumentation, controls, clock distribution, and
    power supplies.

3.  A scaler or beam counter signal should be made available in the
    counting house.

4.  Reasonable access to our equipment in the test beam.

5.  The test beam energy and beam line elements will be under the
    control of the AD Operations Department Main Control Room (MCR).

6.  Position and focus of the beam on the experimental devices under
    test will be under control of MCR. Control of secondary devices that
    provide these functions may be delegated to the experimenters as
    long as it does not violate the Shielding Assessment or provide
    potential for significant equipment damage. (0.5 person-weeks)

7.  The use of negative beam should be reviewed by the Accelerator
    Division ES&H Department as part of the Operational Readiness
    Clearance process.

8.  The integrated effect of running this and other SY120 beams will not
    reduce the antiproton stacking rate or MINOS extraction by more than
    5% globally, with the details of scheduling to be worked out between
    the experimenters and the Office of Program Planning.

## 4.2 Fermilab Particle Physics Division 

1.  The test-beam efforts in this MOU will make use of the Meson Test
    Beam Facility. Requirements for the beam and user facilities are
    given in Section 2.

2.  The Fermilab PPD will be responsible for coordinating overall
    activities in the MTest beamline, including the use of the user
    beamline controls, readout of the beamline detectors and the MTest
    gateway computer. (0.5 person-weeks)

3.  Cooling water (or a chiller) and dry nitrogen (for electronics)
    should be provided.

4.  Adequate lighting for the MT6-B2 area is requested

5.  The existing CKM straws prototype setup including the straws,
    associated electronics, gas system and readout will be provided.

6.  Gas (Ar/CO2-80/20) will be provided for the mini drift chambers.
    (\$100)

4.3 Fermilab Computing Division

1.  Ethernet and printers should be available in the counting house.

2.  Connection to beams control console and remote logging (ACNET)
    should be made available in the counting house.

3.  See Appendix II for a summary of PREP equipment pool needs.

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4.  Fermilab ES&H Section

    1.  Assistance with safety reviews.

    2.  Loan of radioactive source (preferably Sr^90^, 5mCi) for the
        duration of the test beam.

# 

# **V. Summary of Costs**

**Source of Funds \[\$K\] Equipment Operating Personnel**

(person-weeks)

Particle Physics Division \$0.0K \$0.1K 0.5

Accelerator Division 0 0 0.5

Computing Division 0 0 0

Totals Fermilab \$0.0K 0.1 0.5

Totals Non-Fermilab \[\$30K\]

# 

# 

# 

# 

# **VI. SPECIAL CONSIDERATIONS**

6.1 The responsibilities of the Vacuum Straw Tracker Group Spokesperson
and procedures to be followed by experimenters are found in the Fermilab
publication \"Procedures for Experimenters\" (PFX). The Physicist in
charge agrees to those responsibilities and to follow the described
procedures.

6.2 To carry out the experiment a number of Environmental, Safety and
Health (ES&H) reviews are necessary. This includes creating a Partial
Operational Readiness Clearance document in conjunction with the
standing Particle Physics Division committee. The Vacuum Straw Tracker
Group Spokesperson will follow those procedures in a timely manner, as
well as any other requirements put forth by the division's safety
officer.

6.3 The Vacuum Straw Tracker Group Spokesperson will ensure that at
least one person is present at the Meson Test Beam Facility whenever
beam is delivered and that this person is knowledgeable about the
experiment's hazards.

6.4 All regulations concerning radioactive sources will be followed. No
radioactive sources will be carried onto the site or moved without the
approval of the Fermilab ES&H section.

6.5 All items in the Fermilab Policy on Computing will be followed by
experimenters.

6.6 The Vacuum Straw Tracker Group Spokesperson will undertake to ensure
that no PREP and computing equipment be transferred from the experiment
to another use except with the approval of and through the mechanism
provided by the Computing Division management. They also undertake to
ensure that no modifications of PREP equipment take place without the
knowledge and consent of the Computing Division management.

6.7 Each institution will be responsible for maintaining and repairing
both the electronics and the computing hardware supplied by them for the
experiment. Any items for which the experiment requests that Fermilab
performs maintenance and repair should appear explicitly in this
agreement.

6.8 If the experiment brings to Fermilab on-line data acquisition or
data communications equipment to be integrated with Fermilab owned
equipment, early consultation with the Computing Division is advised.

6.9 At the completion of the experiment:

6.9.1 The Vacuum Straw Tracker Group Spokesperson is responsible for the
return of all PREP equipment, Computing equipment and non-PREP data
acquisition electronics. If the return is not completed after a period
of one year after the end of running the Vacuum Straw Tracker Group
Spokesperson will be required to furnish, in writing, an explanation for
any non-return.

6.9.2 The experimenters agree to remove their experimental equipment as
the Laboratory requests them to. They agree to remove it expeditiously
and in compliance with all ES&H requirements, including those related to
transportation. All the expenses and personnel for the removal will be
borne by the experimenters.

6.9.3 The experimenters will assist the Fermilab Divisions and Sections
with the disposition of any articles left in the offices they occupied,
including computer printout and magnetic tapes.

6.9.4 An experimenter will report on the test beam effort at a Fermilab
All Experimenters Meeting.

**SIGNATURES:**

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ / /
2005

Yau Wah, The University of Chicago

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Jim Strait, Particle Physics Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Roger Dixon, Accelerator Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

Robert Tschirhart, Computing Division

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ / 2005

William Griffing, ES&H Section

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ /2005

Hugh Montgomery, Associate Director for Research,

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
/ /2005

Steven Holmes, Associate Director for Accelerators,

#  **Appendix I --Vacuum straw beam test -- Equipment pool needs**

Equipment Pool items needed for Fermilab test beam, needed on the first
day of setup:

[Quantity]{.underline} [Description]{.underline}

4 Nim crates, with cooling fans

1 Fluke 5kV high voltage power supply

1 Berkeley Cow high voltage distribution box

5 NIM Octal descriminators Lecroy 623

4 NIM logic fan in/out Lecroy 429a

2 NIM Scalers modules (4 channels total)

4 NIM Tri- coincidence logic Lecroy 465

3 NIM quad-coin. logic Lecroy 622

4 MWPC wire chamber NIM power supplies (positive HV)

1 pulse gen. fast risetime ( \<5ns ) +- 20v

1 analogue or digital oscilliscope

10 CAMAC 3377 TDCs

**APPENDIX II - Hazard Identification Checklist**

Items for which there is anticipated need have been checked

<table style="width:100%;">
<colgroup>
<col style="width: 4%" />
<col style="width: 5%" />
<col style="width: 2%" />
<col style="width: 20%" />
<col style="width: 4%" />
<col style="width: 5%" />
<col style="width: 5%" />
<col style="width: 17%" />
<col style="width: 5%" />
<col style="width: 28%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="4"><strong>Cryogenics</strong></td>
<td colspan="4"><strong>Electrical Equipment</strong></td>
<td colspan="2"><p><strong>Hazardous/Toxic</strong></p>
<p><strong>Materials</strong></p></td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Beam line magnets</td>
<td></td>
<td colspan="3">Cryo/Electrical devices</td>
<td></td>
<td>List hazardous/toxic materials</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Analysis magnets</td>
<td></td>
<td colspan="3">capacitor banks</td>
<td></td>
<td>planned for use in a beam line or experimental enclosure:</td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Target</td>
<td><strong>X</strong></td>
<td colspan="3">high voltage</td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Bubble chamber</td>
<td><strong>X</strong></td>
<td colspan="3">exposed equipment over 50 V</td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="4"><strong>Pressure Vessels</strong></td>
<td colspan="4"><strong>Flammable Gases or Liquids</strong></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>inside diameter</td>
<td colspan="2">Type:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>operating pressure</td>
<td colspan="2">Flow rate:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>window material</td>
<td colspan="2">Capacity:</td>
<td colspan="2"></td>
<td></td>
<td></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>window thickness</td>
<td colspan="4"><strong>Radioactive Sources</strong></td>
<td></td>
<td></td>
</tr>
<tr class="odd">
<td colspan="4"><strong>Vacuum Vessels</strong></td>
<td></td>
<td colspan="3">permanent installation</td>
<td colspan="2"><strong>Target Materials</strong></td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>inside diameter</td>
<td><strong>X</strong></td>
<td colspan="3">temporary use</td>
<td></td>
<td>Beryllium (Be)</td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>operating pressure</td>
<td colspan="3">Type:</td>
<td><strong>Sr90</strong></td>
<td></td>
<td>Lithium (Li)</td>
</tr>
<tr class="even">
<td colspan="3"></td>
<td>window material</td>
<td colspan="3">Strength:</td>
<td><strong>5 mCi</strong></td>
<td></td>
<td>Mercury (Hg)</td>
</tr>
<tr class="odd">
<td colspan="3"></td>
<td>window thickness</td>
<td colspan="4"><strong>Hazardous Chemicals</strong></td>
<td></td>
<td>Lead (Pb)</td>
</tr>
<tr class="even">
<td colspan="4"><strong>Lasers</strong></td>
<td></td>
<td colspan="3">Cyanide plating materials</td>
<td></td>
<td>Tungsten (W)</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Permanent installation</td>
<td></td>
<td colspan="3">Scintillation Oil</td>
<td></td>
<td>Uranium (U)</td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Temporary installation</td>
<td></td>
<td colspan="3">PCBs</td>
<td></td>
<td>Other :</td>
</tr>
<tr class="odd">
<td></td>
<td colspan="3">Calibration</td>
<td></td>
<td colspan="3">Methane</td>
<td colspan="2"><strong>Mechanical Structures</strong></td>
</tr>
<tr class="even">
<td></td>
<td colspan="3">Alignment</td>
<td></td>
<td colspan="3">TMAE</td>
<td></td>
<td>Lifting devices</td>
</tr>
<tr class="odd">
<td colspan="2">type:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">TEA</td>
<td></td>
<td>Motion controllers</td>
</tr>
<tr class="even">
<td colspan="2">Wattage:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">photographic developers</td>
<td></td>
<td>scaffolding/elevated platforms</td>
</tr>
<tr class="odd">
<td colspan="2">class:</td>
<td colspan="2"></td>
<td></td>
<td colspan="3">Other: Activated Water?</td>
<td></td>
<td>Others</td>
</tr>
</tbody>
</table>