Prospects of KEKin JFY 2007
Fumihiko Takasaki (KEK)070319KEKB MAC

1Crab Cavities

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2Crab Cavities have been installed inthe KEKB tunnel. (1 cavity per ring.)
Electron Ring (8 GeV)

Input
Coupler

Liq. Helium
VesselSUS
SupportPipe

K. Hosoyama, etal
Stub
Support
Notch
FilterCoaxialCouplerRF
AbsorberAluminumEnd
Plate

80 K Liq. Nitrogen
ShieldCopper
Bellows
AluminumEnd
Plate

Positron Ring (3.5 GeV)
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3Beams are indeed tilted!
HER

LER

CrabOFFCrabON

070319KEKB MAC4Let us congratulate the KEKB team,
especially the Crab cavity team, forthe successful installation andimplementation of the Crab cavities.
We hope the luminosity will be
increased as is planned.

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What’s New about KEK

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Director General
Yoji Totsuka → Atsuto Suzuki

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KEK : High Energy Accelerator Research Organization

J-PARC

Tokai
Tsukuba
B-Factory
LC-Test Facility

Tokyo

Photon-Factory
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Budget in FY2007 (Oku-Yen)
FY2007

Civil Eng.

107.4

89.7

Projects158.0

157.1

Salary, etc

145.9

140.4

Total

412.3

388.9

Projects

FY2006070319KEKB
P. Factory

78.8

74.0

31.0

30.7

J-PARC

33.4

43.0

Japan-US

8.7

4.4

ATLAS

3.2

2.2

Others2.8

2.8

KEKB MAC9☆ We are in a process of establishing
the JFY2007 budget at KEK. We would
like to minimize the impact of budget
cut in the projects other than the JPARC. It is obviously painful to cut
budgets of the projects which areworking quite well.
We hope that we can come up with agood proposal which is acceptable
to all parties.
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10☆ About Advisory

Committees
IPNS
Director
LCPAC
KEKB-MAC

070319Clarifying and sharing the
responsibility of labs.
Accelerator Lab
Director

KEKB-MAC
KEKB MAC

LC-MAC

IPNS
Director

Belle-PAC
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We hope that this committee
provides us withrecommendations for the KEKB
accelerator, especially for further
improvement of the KEKB
luminosity.

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Some Slides
on Scientific Activities
at KEK

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KEKB Electron-Positron Collider
SCC
RF(HER)

ARES(LER)

700ｆｂ‐１＜Peak Luminosity

Ares RFcavity

KEKB

PEPII

070319KEKB MAC14Integrated Luminosity
KEKB + PEP-II~ 1 Billion BB pairs
July 2006

710/fb (Jan 07)

KEKB
for Belle
391/fb (Jan 07)

PEP-IIfor BaBar070319

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New Physics Results
Quark Mixing Parameters: (Sep.2006)

Belle + Babar + CDF + D0070319

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Carbon Nano-tube as the electron
Emmitter of the Electron Gun
電子放出の原理

CNT Bundle
熱電子放出

電界電子放出300kA/m2 with < 8 MV/m

長時間試験070319

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Photon Factory
PF：2.5GeV, 450mA
PF-AR:6.5GeV, 50mA: Single Bunch

60 stations : active070319

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Phase-Contrast X-ray Imaging
T.U., Hitachi, Astellas, KEK
Normal Brain

Alzheimer’s Diseased Brain
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Structure of the Insulin Receptor
CSIRO （Australia’s commonwealth scienceand industry Research organization）, KEK

Insulin
Grape sugar
Cell

Insulin
Receptor
Cure forDiabetes
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Future Program

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ATF : Accelerator Test Facility

ATF DR

ATF Linac
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STF Phase-I (2005 ‒ 2007)- First test at KEK of cryomodule
assembling of all components

35MV/m TESLA cavity- 2 cryomodules (connected each other)
contain 4 cavities ofTESLA-type and LL-type(LL: low-loss)
45MV/m KEK type070319KEKB MAC

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J - PARC ( Tokai )J-PARC = Japan Proton Accelerator Research Complex
Materials and Life Science
Experimental Facility

Hadron Beam Facility

Neutrino to
SuperKamiokande

Linac(330m)

3 GeV Synchrotron(25 Hz, 1MW)

50 GeV Synchrotron(0.75 MW)

Joint Project between KEK and JAEA
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Super-KEKB Factory : 8 x 1035/cm2/s
Interaction Region

Crab cavities

Crab crossing
θ=30mrad.
βy*=3mm
New QCSNew Beam pipe(high-current proof)
More RF powerDamping ring
Linac upgrade
C-band070319KEKB MAC~500 M$ project25

Future Project for Photon Factory :Energy Recovery Linac ( ERL)
target year ofconstruction:
2011(~500 M$)

070319Accelerated electrons

Decelerated electrons

averagebrilliancepeakbrilliance

repetition rate(Hz)coherent
fractionbunchwidth(ps)# of BLs

ERL

~1023

~1026

1.3G

~20%

0.1~1~30

XFEL

1022~1023~1033

100~1K100%

0.1

1~52/mrad2/0.1%/s @ 10 keV)(brilliance : photons/mmKEKBMAC26

Future Scenario

Totsuka -06

 KEK should keep both proton andelectron accelerators
 Protons  J-PARC
 Neutrinos, Kaons, Neutrons, Muons Electrons
 e+e- collider  ILC
 Super B factory : Depend on theProgress of the ILC
 ERL
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070319KEKB MAC

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Summary☆ J-PARC- KEK will do its best for the timely
completion of the accelerators.
☆ KEKB/BELLE, PF, KENS, MSL- Being all very active and successful.
☆ Post J-PARC scenario of KEK- Keep protons and electrons.
- Start to think about the ERL.
- Work for the realization of the ILC.
- Super-B : Depend on progress of the ILC.
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Back up Slides

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20062008

KEKB

2010

2012

KEKB upgrade

2014

2016

2018

2020

experiment

ILC R&D

Budget transfer

ILC construction

experiment

J-PARC ν, n construction
J-PARC ν, K experiment
J-PARC n, µ experiment
PF upgrade

PF

Budget transfer

J-PARC R&D

upgradeexperiment

Budget transfer

ERL prototype
ERL construction

experiment

Version 2070319

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First measurement of B → τνSignal +backgroundConstraints on H+BackgroundBτνSignal
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ATLAS

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Extraction kicker system with 300ns flattop

extract 3 bunches by 300ns flat-top(Single bunch) x 2 Train Extraction(Single bunch) x 3 Train Extraction

0.2

0.2

00-0.2-0.2

BPM Signal

BPM Signal

154ns spacing

-0.4

-0.6

336ns spacing

-0.6

-0.8

-1-1

-1.2-600 -400 -200

0200 400 600 800 1000

ILC like bunch
spacing~154 ns~336 ns

-0.4

-0.8

-1.2-600 -400 -200

0200

400

600

800

Time (nsec)

Time (nsec)

070319New beam modefor EXT-line
and ATF2.

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TEST facility for ERL

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ATF Highlights
Fast Pulser (ns, KV)

SLAC-Type Extraction kicker(KEK, SLAC)

Digital Board development
For ILC IP feedback(FONT collaboration)

070319ILC Fast Kicker Study(KEK,SLAC,LLNL)

Laser Wire at Extraction Line
(RHUL LW group)

SLAC nm resolution BPM(SLAC, LLNL, KEK)KEK nm resolution BPM(KEK)KEKB MAC

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Preliminary Results of theSpecific Luminosity
Mar. 2, 2007

Crab Xing - ON

Crab Xing - OFF

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Beam Kick test of ILC Fast kicker

80µrad kickrise time improvement test at ATF DR
rise time improvement by using waveform compensator. 3ns -> 2.2ns070319

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ATF2 Project

ATF2 beam line

ATF2 schedule : floor reinforcement Jun. 2007
start installation
Oct. 2007
completionFeb. 2008

Q-magnet from IHEP
070319 (IHEP, SLAC, KEK)

Cavity-BPM for Q-magnet
from PAL KEKB
(PAL,MAC
KEK)

1 nm resolution BPM for IP
39(KEK)Future Project for Particle Physics :ILC (International Linear Collidier)

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Positron Source with theTungsten single crystal
TMU, Saga L.S., KEK,
Tomsk T.U., Olsay

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Beams have indeed tilted!
- Observation with Streak Cameras (H. Ikeda, et al) -LongitudinalOuter sideof the Ring

Inner sideof the Ring

ElectronPositron

Streak Camera ant its
Schematic Diagram
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