Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session C04: Nuclear Reaction I
7:00 PM–9:45 PM,
Tuesday, November 28, 2023
Hilton Waikoloa Village
Room: Kings 2
Chair: Nobu Imai
Abstract: C04.00011 : Production of Np isotopes from 238U beam at BigRIPS
9:30 PM–9:45 PM
Presenter:
Chihaya Fukushima
(Tokyo City University)
Authors:
Chihaya Fukushima
(Tokyo City University)
Riku Matsumura
(RIKEN Nishina Center / Saitama University)
Daiki Nishimura
(Tokyo City University)
Hideaki Otsu
(RIKEN Nishina Center)
He Wang
(RIKEN HENP Laboratory)
Hidetada Baba
(RIKEN Nishina Center)
Naoki Fukuda
(RIKEN Nishina Center)
Tadaaki Isobe
(RIKEN Nishina Center)
Kei Kokubun
(The University of Tokyo)
Mizuki Kurata-NIshimura
(RIKEN Nishina Center)
Shinichiro Meigo
(JAEA)
Takahiro Nishi
(RIKEN Nishina Center)
Hiroyoshi Sakurai
(RIKEN Nishina Center)
Masaki Sasano
(RIKEN Nishina Center)
Hiromi Sato
(RIKEN Nishina Center)
Yohei Shimizu
(RIKEN Nishina Center)
Toshiyuki Sumikama
(RIKEN Nishina Center)
Hiroshi Suzuki
(RIKEN Nishina Center)
Hiroyuki Takahashi
(Tokyo City University)
Hiroyuki Takeda
(RIKEN Nishina Center)
Junki Tanaka
(RIKEN Nishina Center)
Yasuhiro Togano
(RIKEN Nishina Center)
Koichi Yoshida
(RIKEN Nishina Center)
Masahiro Yoshimoto
(RIKEN Nishina Center)
Secondary beams around Z = 90 were produced by an 238U primary beam with energies of 345 and 250 MeV/u. To validate the production of the 237Np91+, a two dimensional (2D) Gaussian fitting approach was conducted in accordance with the distribution patterns of neighboring ions of 234U90+,235U90+, and 232Pa89+. It is found that Np isotope can be counted with contaminated U/Pa isotopes. The production cross sections of 234-236U and 232-233Pa as well as Np isotopes were derived.
We will report the results of 345MeV/u.
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