The 27th KEKB Accelerator Review Committee
March 25, 2024

WelcomeTadashi Koseki
Accelerator Laboratory, KEKHigh Energy Accelerator Research Organization, KEK
KEK Tsukuba campus

KEK Tokai campus

SuperKEKB, PF, PF-AR, ATF/STF
for ILC R&D, SPF, cERL, etc.

J-PARC, iBNCTKEK Tokai campus
KEK Tsukuba campus
60 km

Tokyo

High Energy Accelerator Research Organization, KEK
Research Institutes:
1. Institute of Particle and Nuclear Study
Research on particle physics, nuclear physics and cosmology
from both experimental and theoretical perspectives.

2. Institute of Materials Structure Science
Research on materials and life science by synchrotron radiation,neutron, muon and slow positron beams.

3. Accelerator Laboratory
Construction and operation of all accelerators at KEK,
development the performance of the beams,
R&D for future accelerators and related technologies.

4. Applied Research Laboratory
Consisting of four centers; radiation science, computing
research, cryogenic science and mechanical engineering.

Shoji Asai,
New DG from April 2024

Accelerator Laboratory
SuperKEKB

From April 2024
Acc Division I
Hideaki Hotchi

J-PARCAcc Division II
Yoichi SatoAcc Division III
AcceleratorLaboratory
Tadashi Koseki

Kyo ShibataAcc Division IV

SuperKEKB
collider

J-PARC

Makoto Tobiyama

Acc Division V

e+e- LINAC

Hiroyasu Ego

Acc Division VI
Takashi ObinaiCASA
Hiroshi Sakai

PF/PF-AR
Application
ILC R&D

e+e- linac
PFiCASA : Innovation Center for Applied
Superconducting Accelerator

ATF2
iBNCT

ILC R&D

Electron/Positron Accelerator related facilities on
Tsukuba campus

iCASA

The 27th meeting of the KEKB Accelerator Review Committee
Welcome and many thanks for your participation
Frank Zimmermann, ChairRalph Assmann
Vincent Baglin
Paolo CraievichJohn Fox
Andrew Hutton
Catia MilardiKatsunobu Oide
Evgeny Perevedentsev
Qing Qin
Robert Rimmer
John Seeman
Michael Sullivan
Thomas Taylor
Rogelio Tomas

CERN
GSI
CERN
PSI
Stanford Univ.
JLAB
INFN
UNIGE/CERN and KEK(ret.)
BINP
ESRF
JLAB
SLAC
SLAC
CERN(ret.)
CERN

Tadashi Koseki
Makoto Tobiyama
Mika Masuzawa
Hiroyasu Ego

KEK, Director of ACCL, Ex Officio member
KEK, Head of Acc. Division III, Ex Officio member
KEK, Head of Acc. Division IV, Ex Officio member
KEK, Head of Acc. Division V, Ex Officio member

RemoteRemoteRemoteWe would like to request the Committee to review and advise on beam operation and overall performance of theSuperKEKB accelerator.

635.00

Unit price of electricity
at Tokai campus

25.00
20.00
15.00
10.00
5.00

H22.4 2010.4
H22.10
H23.4
H23.10
H24.4
H24.10
H25.4
H25.10
H26.4
H26.10
H27.4 2015.4
H27.10
H28.4
H28.10
H29.4 2017.4
H29.10
H30.4
H30.10
H31.4 2019.4
R1.10
R2.4
R2.10
R3.4 2021.4
R3.10
R4.4
R4.10
R5.4
R5.10
R6.4 2024.4

Unit Price [ Yen / ｋWh ]30.00

The earthquake

0.00- MEXT has provided KEK with an additional supplementary budget to cope with the rising cost of electricity in JFY2023.
- We should continue all efforts to reduce power consumption.

Responses to 26th ARC recommendations
R1.1 The ARC committee recommends actively recruiting new young staff members to help with thewide-ranging accelerator work of SuperKEKB and to prepare for the next decades of operation.
In JFY2023, four academic staff and three technical staff have been newly hired, and joined theSuperKEKB accelerator group. We will continue to recruit new staff through job openings widely
announced to the domestic (for technical staff) and international (for academic staff) communities.
R1.2 Find a mechanism to engage additional PhD students (perhaps also already master students andeven undergraduates), from Japanese universities or from abroad in the exciting and real-timeaccelerator environment of SuperKEKB, in both experimental and theoretical accelerator-physics
studies.
ACCL (not only SuperKEKB) has ~15 graduate students working on research for their doctoral or
master's theses under the guidance of faculty members in ACCL. The students are affiliated with
SOKENDAI (The Graduate University for Advanced Studies), the University of Tokyo or otheruniversities in Japan. Some of the graduates are employed as post-doctoral fellows at ACCL. As ofApril 2024, there will be 13 postdoctoral fellows/term-limited assistant professors in ACCL. Five ofthem have completed their doctor degree researches under the supervision of ACCL staff. We willcontinue our efforts to attract more graduate students to the SuperKEKB accelerator group.
8