RIBF User Group
Town Meeting
2023/09/07@RIKEN

Agenda• 1) Report on the RIBF UEC activity (Ichikawa)• 2) Report from Nishina Center (Yoneda-san)• 3) OthersReport on
the RIBF UEC activity
Yuichi Ichikawa
For the RIBF Users Executive Committee

New members of UEC
Apr. 2021 - Mar. 2025
Y. Ichikawa (Kyushu, chair)
T. Abe (Keio, vice chair)
A. Corsi (CEA Saclay)
J. Zenihiro (Kyoto)
K. Sekizawa (Tokyo Tech.)Apr. 2023 - Mar. 2027
K. Miki (Tohoku, vice chair)
D. Nishimura (Tokyo City)
P. Schury (KEK)
F. Minato (Kyushu)
H. Liang (Tokyo)

UEC activities
 Regular town/online meetings
 Report from the MT committee (monthly) RIBF Users Group Thesis Awards
 RIBF Users Meeting Member list update Conference calendar update (regularly) Bridging users and RNC

Stats of Users Meeting• Organized mainly by J. Zenihiro and D. Nishimura, andLocally supported by D. Suzuki• Onsite + Online (Zoom)• 18 invited talks:
2 Facility, 3 Upgrade Plan, 9 Experiments, 2 Theory,
2 Thesis Award• Participants: 52 onsite + 60 online (Cf. 114 registrants)Cf.) 94 (2022, online), 139 (2021, online),127 (2020, online), 52 (2019, onsite)

Thesis Awards
Dr. Shun Iimura (Rikkyo Univ.)“Development of RF carpet type He gas celland high-precision mass measurement ofneutron-rich nuclei at around A=50−60 with MRTOF”(Osaka University, 2022)
Dr. Yoshiki Chazono (RIKEN)“New reaction model for revealing deuteron inside nuclei”(RCNP, Osaka University, 2022)

Congratulations again!

Member list update
Non-active members (over 600) will be deleted
Please update your registration• Visit https://ribfuser.riken.jp/RIBF_UG/registration.html• Click on “Update User Info.”• Enter your email address, click on “送信/submit”• Update your information if necessary• Irrespective of the update click on “送信/submit”

We would like to propose• Annual check / update at every April• Otherwise deletedTown Meeting• Report from UEC and Nishina Center• Conventionally at JPS meeting (onsite)• We would like to suggest to separate from JPS meeting• Autumn: Coupled with Users Meeting• Spring: Early March (JPS meeting will be online)

Request to Nishina Center / RIBF Originally UEC was established to bridge the RIBF
users and Nishina Center We would like to survey requests to Nishina CenterEx.)•••••

Format of Users Meeting (coupled with collaboration mtg?)
Timing of Users Meeting
Timing of proposal call, deadline, reviewers comments
Beam time allocation
Local supports

RIBF Status ReportKen-ichiro YONEDA
User Liaison GroupRIKEN Nishina Center
RIBF User Group Town Meeting
RIBF Conference Hall, September 7, 2023

• RIBF operation in 1st half FY2023• SRC hardware trouble• MT plan in 2nd half FY2023• NP-PAC meeting

RIBF operation April-September ’2023
JuneApril18O

CANCELLEDSAMURAIJulyMay

September
New trouble !!
in SRC
https://www.nishina.riken.jp/rarfmt/pc.html

Now

A new SRC trouble

May 19, “sub-transfer tube” had a problem…
a pipe for He going back from SRC to cryo-system
A lot of “ice” on the pipe too bad heat insulation
 SRC operation in spring cancelled
August 21, parts to fix, specified
How long to fix it? Still under consideration
schedule of 2nd half 2023 … not fixed yet
SRC with 18O from Nov 16?
orNO SRC in autumn?

SRC sub-transfer tube

He cryocooler
SRC main transfer tube

(tentative) MT schedule in 2nd half FY2023
DecemberOctoberNovember
CGS maintenance
From Dec 918O ?

SAMURAI ?

(tentative) MT schedule in 2nd half FY2023
February
January

March

Only old facility
SRC-BigRIPS from April 2024

NP-PAC

24th NP-PAC meeting
to be held on December 5 (Tue) – 7 (Thu), 2023
Meeting in person for presentation
Proposal submission deadline: October 10Call for Proposals to be issued soon
Latest information will be given in:
https://www.nishina.riken.jp/RIBF/NP-PAC/index.html