VI. RNC ACTIVITIESRIKEN Accel. Prog. Rep. 54 (2021)

Research Facility Development Division
Research Instruments GroupDetector Team
1. Abstract

This team is in charge of development, fabrication, and operation of various detectors used for nuclear physics experiments atRIBF. Our current main mission is maintenance and improvement of detectors which are used at BigRIPS separator and its succeeding
beam lines for beam diagnosis and particle identification of RI beams. We are also engaged in R&D of new detectors that can be usedfor higher-intensity RI beams. In addition, we are doing the R&D which uses the pelletron accelerator together with other groups.

2. Major Research Subjects

Development, fabrication, and operation of various detectors for nuclear physics experiments, including beam-line detectors which
are used for the production and delivery of RI beams (beam diagnosis and particle identification). R&D which uses the pelletronaccelerator.

3. Summary of Research Activity

The current research subjects are summarized as follows:(1) Maintenance and improvement of the beam-line detectors which are used at BigRIPS separator and its succeeding beam lines.
(2) Development of new beam-line detectors with radiation hardness and tolerance for higher counting rates.
(3) Management of the pelletron accelerator and R&D which uses the pelletron.

Members
Team Leader
Hiromi SATO
Research/Technical Scientist
Tokihiro IKEDA (Senior Research Scientist)
Research Consultant
Manabu HAMAGAKIVisiting Scientist
Takeshi KOIKE (Tohoku University)
Student Trainees
Yuka HIKIMA (Toho University)
Mitsumasa MORI (Toho University)

Keito SANGU (Toho University)

List of Publications & Presentations
Publications[Original Papers]
A. Revel, O. Sorlin, F. M. Marqués, Y. Kondo, J. Kahlbow, T. Nakamura, N. A. Orr, F. Nowacki, J. A. Tostevin, C. X. Yuan, N. L. Achouri,
H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, H. L. Crawford, F. Delaunay, A. Delbart, Q. Deshayes, Z. Dombrádi, C. A. Douma, Z. Elekes, P. Fallon, I. Gašparić, J. -M. Gheller, J. Gibelin, A. Gillibert,
M. N. Harakeh, W. He, A. Hirayama, C. R. Hoﬀman, M. Holl, A. Horvat, Á. Horváth, J. W. Hwang, T. Isobe, N. Kalantar-Nayestanaki,
S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Körper, S. Koyama, I. Kuti, V. Lapoux, S. Lindberg, S. Masuoka, J. Mayer, K. Miki,T. Murakami, M. Najafi, K. Nakano, N. Nakatsuka, T. Nilsson, A. Obertelli, F. de Oliveira Santos, H. Otsu, T. Ozaki, V. Panin,
S. Paschalis, D. Rossi, A. T. Saito, T. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, Y. Shimizu,H. Simon, D. Sohler, L. Stuhl, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Törnqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, T. Uesaka, Z. Yang, M. Yasuda, and K. Yoneda, “Extending the southern shore of the island of inversion to 28 F,” Phys. Rev. Lett.
124, 152502 (2020).
K. J. Cook, T. Nakamura, Y. Kondo, K. Hagino, K. Ogata, A. T. Saito, N. L. Achouri T. Aumann, H. Baba, F. Delaunay, Q. Deshayes,P. Doornenbal N. Fukuda, J. Gibelin, J. W. Hwang, N. Inabe, T. Isobe, D. Kameda, D. Kanno, S. Kim, N. Kobayashi, T. Kobayashi,T. Kubo, S. Leblond, J. Lee, F. M. Marqués, R. Minakata, T. Motobayashi, K. Muto, T. Murakami, D. Murai, T. Nakashima, N. Nakatsuka, A. Navin, S. Nishi, S. Ogoshi, N. A. Orr, H. Otsu, H. Sato, Y. Satou, Y. Shimizu, H. Suzuki, K. Takahashi, H. Takeda, S. Takeuchi,R. Tanaka, Y. Togano, J. Tsubota, A. G. Tuﬀ, M. Vandebrouck, and K. Yoneda, “Halo structure of the neutron-dripline nucleus 19 B,”
Phys. Rev. Lett. 124, 212503 (2020).

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G. Jhang, J. Estee, J. Barney, G. Cerizza, M. Kaneko, J. W. Lee, W. G. Lynch, T. Isobe, M. Kurata-Nishimura, T. Murakami, C. Y. Tsang,M. B. Tsang, R. Wang, D. S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, N. Chiga, N. Fukuda, I. Gasparic,B. Hong, A. Horvat, K. Ieki, N. Inabe, Y. J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H. S. Lee, Y. Leifels, J. Lukasik, J. Manfredi,A. B. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, R. Olsen, H. Otsu, P. Pawlowski, K. Pelczar, D. Rossi,
H. Sakurai, C. Santamaria, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, A. Snoch, A. Sochocka, Z. Sosin, T. Sumikama,
H. Suzuki, D. Suzuki, H. Takeda, S. Tangwancharoen, H. Toernqvist, Y. Togano, Z. G. Xiao, S. J. Yennello, J. Yurkon, Y. Zhang, theSπRIT Collaboration, M. Colonna, D. Cozma, P. Danielewicz, H. Elfner, N. Ikeno, C. M. Ko, J. Mohs, D. Oliinychenko, A. Ono,
J. Suae, Y. J. Wang, H. Wolter, J. Xu, Y. -X. Zhang, Z. Zhang, the TMEP collaboration, “Symmetry energy investigation with pion
production from Sn + Sn systems,” Phys. Lett. B 813, 136016 (2021).
Y. Kubota, A. Corsi, G. Authelet, H. Baba, C. Caesar, D. Calvet, A. Delbart, M. Dozono, J. Feng, F. Flavigny, J. -M. Gheller, J. Gibelin,
A. Giganon, A. Gillibert, K. Hasegawa, T. Isobe, Y. Kanaya, S. Kawakami, D. Kim, Y. Kikuchi, Y. Kiyokawa, M. Kobayashi,
N. Kobayashi, T. Kobayashi, Y. Kondo, Z. Korkulu, S. Koyama, V. Lapoux, Y. Maeda, F. M. Marqués, T. Motobayashi, T. Miyazaki,
T. Nakamura, N. Nakatsuka, Y. Nishio, A. Obertelli, K. Ogata, A. Ohkura, N. A. Orr, S. Ota, H. Otsu, T. Ozaki, V. Panin, S. Paschalis,
E. C. Pollacco, S. Reichert, J. -Y. Roussé, A. T. Saito, S. Sakaguchi, M. Sako, C. Santamaria, M. Sasano, H. Sato, M. Shikata,Y. Shimizu, Y. Shindo, L. Stuhl, T. Sumikama, Y. L. Sun, M. Tabata, Y. Togano, J. Tsubota, Z. H. Yang, J. Yasuda, K. Yoneda,
J. Zenihiro, and T. Uesaka, “Surface localization of the dineutron in 11 Li,” Phys. Rev. Lett. 125, 252501 (2020).
H. Suzuki, K. Yoshida, N. Fukuda, H. Takeda, Y. Shimizu, D. S. Ahn, T. Sumikama, N. Inabe, T. Komatsubara, H. Sato, Z. Korkulu,
K. Kusaka, Y. Yanagisawa, M. Ohtake, H. Ueno, T. Kubo, S. Michimasa, N. Kitamura, K. Kawata, N. Imai, O. B. Tarasov, D. Bazin,
J. Nolen, and W. F. Henning, “Experimental studies of the two-step scheme with an intense radioactive 132 Sn beam for next-generation
production of very neutron-rich nuclei,” Phys. Rev. C 102, 064615 (2020).
Z. H. Yang, Y. Kubota, A. Corsi, K. Yoshida, X. -X. Sun, J. G. Li, M. Kimura, N. Michel, K. Ogata, C. X. Yuan, Q. Yuan, G. Authelet,
H. Baba, C. Caesar, D. Calvet, A. Delbart, M. Dozono, J. Feng, F. Flavigny, J. -M. Gheller, J. Gibelin, A. Giganon, A. Gillibert,
K. Hasegawa, T. Isobe, Y. Kanaya, S. Kawakami, D. Kim, Y. Kiyokawa, M. Kobayashi, N. Kobayashi, T. Kobayashi, Y. Kondo,
Z. Korkulu, S. Koyama, V. Lapoux, Y. Maeda, F. M. Marqués, T. Motobayashi, T. Miyazaki, T. Nakamura, N. Nakatsuka, Y. Nishio,A. Obertelli, A. Ohkura, N. A. Orr, S. Ota, H. Otsu, T. Ozaki, V. Panin, S. Paschalis, E. C. Pollacco, S. Reichert, J. -Y. Roussé,A. T. Saito, S. Sakaguchi, M. Sako, C. Santamaria, M. Sasano, H. Sato, M. Shikata, Y. Shimizu, Y. Shindo, L. Stuhl, T. Sumikama,Y. L. Sun, M. Tabata, Y. Togano, J. Tsubota, F. R. Xu, J. Yasuda, K. Yoneda, J. Zenihiro, S. -G. Zhou, W. Zuo, and T. Uesaka, “Quasifreeneutron knockout reaction reveals a small s-orbital component in the Borromean nucleus 17 B,” Phys. Rev. Lett. 126, 082501 (2021).
T. Ikeda, “Applications of microbeams produced by tapered glass capillary optics,” Quantum Beam Sci. 4(2), 22 (2020).
S. Kawamura, T. Ikeda, and W. -G. Jin, “Transmission characteristic of ultraviolet-laser microbeam with tapered glass capillary optics,”
J. Phys. Soc. Jpn. 89, 055002 (2020).

Presentations[Domestic Conferences/Workshops]
高橋弘幸, 西村太樹, 菅原奏来, 延與紫世, 福田直樹, 原田知也, 土方佑斗, 松村理久, 佐藤広海, 清水陽平, 鈴木宏, 竹田浩之, 田中純貴,上坂友洋, 宇根千晶, 吉田光一, 銭廣十三 (口頭発表), 「Th ビームの開発に向けたイオンチェンバーの性能評価」, 日本物理学会
第 76 回年次大会, オンライン, 2021 年 3 月 12–15 日.
土方佑斗, 銭廣十三, 上坂友洋, 延與紫世, 大田晋輔, 坂口治隆, 佐藤広海, 清水陽平, 菅原奏来, 鈴木宏, 高橋弘幸, 武重祥子, 竹田浩之,田中純貴, 辻崚太朗, 寺嶋知, 堂園昌伯, 西村俊二, 西村太樹, 馬場秀忠, 原田知也, G, 福田直樹, 松田洋平, 道正新一郎, 山村周,
吉田光一 (口頭発表), 「大強度かつ極めて重い不安定核ビームの粒子識別に向けた Xe ガスシンチレータの開発」, 日本物理学会
第 76 回年次大会, オンライン, 2021 年 3 月 12–15 日.
吉留勇起, 近藤洋介, 中村隆司, Nadia Lynda Achouri, Thomas Aumann, 馬場秀忠, Franck Delaunay, Pieter Doornenbal, 福田直樹, JulienGibelin, Jongwon Hwang, 稲辺尚人, 磯部忠昭, 亀田大輔, 簡野大輝, Sunji Kim, 小林信之, 小林俊雄, 久保敏幸, Sylvain Leblond,Jenny Lee, Miguel Marques, 本林透, 村井大地, 村上哲也, 武藤琴美, 中嶋丈嘉, 中塚徳継, Alahari Navin, 西征爾郎, Nigel Andrew
Orr, 大津秀暁, 佐藤広海, 佐藤義輝, 清水陽平, 鈴木宏, 高橋賢人, 竹田浩之, 栂野泰宏, Adam Garry Tuﬀ, Marine Vandebrouck, 米田健一郎 (口頭発表), 「25 O の不変質量核分光」, 日本物理学会第 76 回年次大会, オンライン, 2021 年 3 月 12–15 日.
池田時浩 (口頭発表), 「Applications of MeV-ion microbeams produced by tapered glass capillary optics」, 第 21 回「イオンビームによる表面・界面の解析と改質」特別研究会, 京都大学宇治キャンパス&オンライン, 京都, 2020 年 12 月 4–5 日.
引間宥花, 池田時浩, 森光正, 金衛国 (招待講演), 「生物照射のためのガラスキャピラリーマイクロビーム法とスポット径解析」, 原子衝突学会第 45 回年会, オンライン, 2020 年 12 月 8–10 日.
引間宥花, 池田時浩, 森光正, 金衛国 (ポスター), 「生物照射のためのガラスキャピラリーマイクロビーム法とスポット径解析」, 原子衝突学会第 45 回年会, オンライン, 2020 年 12 月 8–10 日.
引間宥花, 池田時浩, 森光正, 金衛国 (口頭発表), 「ガラスキャピラリーによる H+ マイクロビームの大気中微小標的への照射距離の評価」, 第 63 回放射線化学討論会, オンライン, 2020 年 12 月 12–14 日.
三宮圭人, 池田時浩, 森光正, 引間宥花, 田山優雅, 福田彩実, 山口航平, 金衛国 (口頭発表), 「ガラスキャピラリーにおけるパルスレーザーマイクロビームの透過特性」, 第 63 回放射線化学討論会, オンライン, 2020 年 12 月 12–14 日.

Awards引間宥花, 「生物照射のためのガラスキャピラリーマイクロビーム法とスポット径解析」, 原子衝突学会第 45 回年会ホットトピッ
ク公演.

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