Helium gas cell with RF wire carpets for KEK Isotope Separation System

Y. Hirayama, M. Mukai, P. Schury, Y.X. Watanabe, S. Iimura, H. Ishiyama, S.C. Jeong, H. Miyatake, T. Niwase, M. Rosenbusch, A. Takamine, A. Taniguchi, M. Wada

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment1058   168838 - 168838   1 2024

First direct mass measurement for neutron-rich <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Mo</mml:mi><mml:mprescripts /><mml:none /><mml:mn>112</mml:mn></mml:mmultiscripts></mml:math> with the new ZD-MRTOF mass spectrograph system

D. S. Hou, A. Takamine, M. Rosenbusch, W. D. Xian, S. Iimura, S. D. Chen, M. Wada, H. Ishiyama, P. Schury, Z. M. Niu, H. Z. Liang, S. X. Yan, P. Doornenbal, Y. Hirayama, Y. Ito, S. Kimura, T. M. Kojima, W. Korten, J. Lee, J. J. Liu, Z. Liu, S. Michimasa, H. Miyatake, J. Y. Moon, S. Naimi, S. Nishimura, T. Niwase, T. Sonoda, D. Suzuki, Y. X. Watanabe, K. Wimmer, H. Wollnik

Physical Review C108 ( 5 )   27 11 2023

The SCRIT electron scattering facility at RIKEN RI Beam Factory

T. Ohnishi, D. Abe, Y. Abe, R. Danjyo, A. Enokizono, T. Goke, M. Hara, Y. Honda, T. Hori, S. Ichikawa, S. Iimura, Y. Ishikura, K. Ishizaki, Y. Ito, K. Kurita, C. Legris, Y. Maehara, Y. Nagano, R. Obara, R. Ogawara, T. Suda, T. Tamae, K. Tsukada, M. Wakasugi, M. Watanabe, H. Wauke, T. Yamano, S. Yoshida

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms541   380 - 384   8 2023

Discovery of New Isotope <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">U</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>241</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> and Systematic High-Precision Atomic Mass Measurements of Neutron-Rich Pa-Pu Nuclei Produced via Multinucleon Transfer Reactions

T. Niwase, Y. X. Watanabe, Y. Hirayama, M. Mukai, P. Schury, A. N. Andreyev, T. Hashimoto, S. Iimura, H. Ishiyama, Y. Ito, S. C. Jeong, D. Kaji, S. Kimura, H. Miyatake, K. Morimoto, J.-Y. Moon, M. Oyaizu, M. Rosenbusch, A. Taniguchi, M. Wada

Physical Review Letters130 ( 13 )   31 3 2023

Development of a β-TOF detector: An enhancement of the α-TOF detector for use with β-decaying nuclides

Toshitaka Niwase, Wenduo Xian, Michiharu Wada, Marco Rosenbusch, Sidong Chen, Aiko Takamine, Jiajian Liu, Shun Iimura, Dongsheng Hou, Shuxiong Yan, Hironobu Ishiyama, Hiroari Miyatake, Shunji Nishimura, Daiya Kaji, Kouji Morimoto, Yoshikazu Hirayama, Yutaka X Watanabe, Sota Kimura, Peter Schury, Hermann Wollnik

Progress of Theoretical and Experimental Physics2023 ( 3 )   9 3 2023

Study of the N = 32 and N = 34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI Peer-reviewed

S. Iimura, M. Rosenbusch, A. Takamine, Y. Tsunoda, M. Wada, S. Chen, D. S. Hou, W. Xian, H. Ishiyama, S. Yan, P. Schury, H. Crawford, P. Doornenbal, Y. Hirayama, Y. Ito, S. Kimura, T. Koiwai, T. M. Kojima, H. Koura, J. Lee, J. Liu, S. Michimasa, H. Miyatake, J. Y. Moon, S. Naimi, S. Nishimura, T. Niwase, A. Odahara, T. Otsuka, S. Paschalis, M. Petri, N. Shimizu, T. Sonoda, D. Suzuki, Y. X. Watanabe, K. Wimmer, H. Wollnik

Physical Review Letters130 ( 1 )   5 1 2023

The new MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN’s RIBF facility Peer-reviewed

M. Rosenbusch, M. Wada, S. Chen, A. Takamine, S. Iimura, D. Hou, W. Xian, S. Yan, P. Schury, Y. Hirayama, Y. Ito, H. Ishiyama, S. Kimura, T. Kojima, J. Lee, J. Liu, S. Michimasa, H. Miyatake, J.Y. Moon, M. Mukai, S. Nishimura, S. Naimi, T. Niwase, T. Sonoda, Y.X. Watanabe, H. Wollnik

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment1047   167824 - 167824   11 2022

In-gas-cell laser resonance ionization spectroscopy of 200, 201 Pt Peer-reviewed

Y. Hirayama, M. Mukai, Y. X. Watanabe, P. Schury, H. Nakada, J. Y. Moon, T. Hashimoto, S. Iimura, S. C. Jeong, M. Rosenbusch, M. Oyaizu, T. Niwase, M. Tajima, A. Taniguchi, M. Wada, H. Miyatake

Physical Review C106 ( 3 )   30 9 2022

Various nuclear structures in Xe 140 studied by β decay of ground and isomeric states in i 140 Peer-reviewed

A. Yagi, A. Odahara, H. Nishibata, R. Lozeva, C. B. Moon, S. Nishimura, K. Yoshida, N. Yoshinaga, C. Watanabe, K. Higashiyama, T. Shimoda, R. Daido, Y. Fang, P. S. Lee, B. Moon, P. Doornenbal, G. Lorusso, P. A. Söderström, T. Sumikama, H. Watanabe, T. Isobe, H. Baba, H. Sakurai, F. Browne, Z. Patel, S. Rice, L. Sinclair, J. Wu, Z. Y. Xu, R. Yokoyama, T. Kubo, N. Inabe, H. Suzuki, N. Fukuda, D. Kameda, H. Takeda, D. S. Ahn, Y. Shimizu, D. Murai, F. L. Bello Garrote, J. M. Daugas, F. Didierjean, E. Ideguchi, S. Iimura, T. Ishigaki, H. S. Jung, T. Komatsubara, Y. K. Kwon, C. S. Lee, S. Morimoto, M. Niikura, I. Nishizuka, K. Tshoo

Physical Review C105 ( 4 )   4 2022

α-decay-correlated mass measurement of ^(206,207g,m)Ra using an α-TOF detector equipped multireflection time-of-flight mass spectrograph system Peer-reviewed

T. Niwase, M. Wada, P. Schury, P. Brionnet, S. D. Chen, T. Hashimoto, H. Haba, Y. Hirayama, D. S. Hou, S. Iimura, H. Ishiyama, S. Ishizawa, Y. Ito, D. Kaji, S. Kimura, J. Liu, H. Miyatake, J. Y. Moon, K. Morimoto, K. Morita, D. Nagae, M. Rosenbusch, A. Takamine, T. Tanaka, Y. X. Watanabe, H. Wollnik, W. Xian, S. X. Yan

Physical Review C104 ( 4 )   20 10 2021

First high-precision direct determination of the atomic mass of a superheavy nuclide Peer-reviewed

P. Schury, T. Niwase, M. Wada, P. Brionnet, S. Chen, T. Hashimoto, H. Haba, Y. Hirayama, D. S. Hou, S. Iimura, H. Ishiyama, S. Ishizawa, Y. Ito, D. Kaji, S. Kimura, H. Koura, J. J. Liu, H. Miyatake, J.-Y. Moon, K. Morimoto, K. Morita, D. Nagae, M. Rosenbusch, A. Takamine, Y. X. Watanabe, H. Wollnik, W. Xian, S. X. Yan

Physical Review C104 ( 2 )   31 8 2021

Three-dimensional tracking multi-segmented proportional gas counter for β-decay spectroscopy of unstable nuclei Peer-reviewed

Y. Hirayama, P. Schury, M. Mukai, H. Choi, S. Iimura, Y.X. Watanabe, M. Wada, H. Watanabe, H. Miyatake

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment997   165152 - 165152   5 2021

Accurately accounting for effects on times-of-flight caused by finite field-transition times during the ejection of ions from a storage trap: A study for single-reference TOF and MRTOF mass spectrometry Peer-reviewed

M. Rosenbusch, P. Schury, M. Wada, S. Iimura, Y. Ito, H. Wollnik

International Journal of Mass Spectrometry456   116346 - 116346   10 2020

Conceptual study on parasitic low-energy RI beam production with in-flight separator BigRIPS and the first stopping examination for high-energy RI beams in the parasitic gas cell Peer-reviewed

T Sonoda, I Katayama, M Wada, H Iimura, V Sonnenschein, S Iimura, A Takamine, M Rosenbusch, T M Kojima, D S Ahn, N Fukuda, T Kubo, S Nishimura, Y Shimizu, H Suzuki, H Takeda, M Tanigaki, H Tomita, K Yoshida, H Ishiyama

Progress of Theoretical and Experimental Physics2019 ( 11 )   1 11 2019

Direct mass measurement of superheavy nuclides ^257,258Db via MRTOF-MS equipped with the α-TOF detector.

庭瀬暁隆, SCHURY P., 和田道治, BRIONNET P., CHEN S., 羽場宏光, 平山賀一, HOU D. S., HOU D. S., HOU D. S., 飯村俊, 飯村俊, 飯村俊, 石山博恒, 伊藤由太, 加治大哉, 木村創大, 小浦寛之, 宮武宇也, 森本幸司, 森田浩介, 森田浩介, 森田浩介, 長江大輔, ROSENBUSCH M., 高峰愛子, 渡辺裕, WOLLNIK H., XIAN W., XIAN W., YAN S. X.

日本物理学会講演概要集(CD-ROM)77 ( 1 )   2022

Status of the mass measurement of neutron-rich nuclei at A ～ 50–60 using SLOWRI/ZD-MRTOF Peer-reviewed

S. Iimura, M. Rosenbusch, A. Takamine, D. S. Hou, M. Wada, S. Chen, J. Liu, W. Xian, S. Yan, P. Schury, S. Kimura, T. Niwase, Y. Ito, T. Sonoda, T. M. Kojima, Y. X. Watanabe, S. Naimi, S. Michimasa, S. Nishimura, A. Odahara, H. Ishiyama

RIKEN Accelerator Progress Report 2021 Vol. 55   2022

Study of neutron unbound states in neutron-rich nucleus ³³Al by β delayed-neutron decay of ³³Mg

大上能弘, 小田原厚子, 西畑洸希, 下田正, 大谷優里花, 前島大樹, 金谷晋之介, 飯村俊, 吉岡篤志, 浜野友哉, 関口直太, 浅川寛太, LEVY C.D.P., PEARSON M.R., LASSEN J., LI R.

日本物理学会講演概要集(CD-ROM)76 ( 1 )   2021

Study of nuclear structure of ³¹Al by using spin-polarized ³¹Mg beam

前島大樹, 小田原厚子, 西畑洸希, 下田正, 大上能弘, 飯村俊, 金谷晋之介, 大谷優里花, 浜野友哉, 関口直太, 浅川寛太, LEVY C.D.P., PEARSON M.R., LASSEN J., LI R.

日本物理学会講演概要集(CD-ROM)76 ( 1 )   2021

Development of new beta-delayed neutron detector to study nuclear structure of neutron-rich nuclei

吉岡篤志, 小田原厚子, 飯村俊, 大上能弘, 前島大樹, NOR Nurhafiza M.

日本物理学会講演概要集(CD-ROM)76 ( 1 )   2021

Development of RF Carpet Type Gas Cell in SLOWRI for BigRIPS Beam-On-line Commissioning and Mass Measurement using MRTOF-

飯村俊, 飯村俊, 高峰愛子, ROSENBUSCH M., 和田道治, CHEN S., HOU D., LIU J., XIAN W., YAN S., SCHURY P., 木村創大, 庭瀬暁隆, 伊藤由太, 園田哲, 小島隆夫, 渡辺裕, NAIMI S., 道正新一郎, 西村俊二, 小田原厚子, 石山博恒

日本物理学会講演概要集(CD-ROM)76 ( 1 )   2021

Online extraction efficiency from RF ion guide gas cell at SLOWRI Peer-reviewed

S. Iimura, A. Takamine, D. S. Hou, M. Rosenbusch, M. Wada, S. Chen, J. Liu, W. Xian, S. Yan, P. Schury, S. Kimura, T. Niwase, Y. Ito, T. Sonoda, T. M. Kojima, Y. X. Watanabe, S. Naimi, S. Michimasa, S. Nishimura, A. Odahara, H. Ishiyama

RIKEN Accelerator Progress Report 2020 Vol. 54   2021

Development of RF Carpet Type Gas Cell in SLOWRI for BigRIPS Beam

S. Iimura, A. Takamine, M. Rosenbusch, M. Wada, S. Chen, J. Liu, P. Schury, T. Sonoda, T. M. Kojima, Y. X. Watanabe, A. Odahara, H. Ishiyama

Proceedings of the Specialists' Meeting on "Nuclear Spectroscopy and Condensed Matter Physics Using Short-Lived Nuclei Ⅵ" and Meeting on "11th Nuclear Spectroscopy Research Using Stop and Slow Unstable Nuclei (SSRI)"   6 2020

Structure of neutron-rich Al isotopes studied by β-decay of spin-polarized Mg

西畑洸希, 浜野友哉, 小田原厚子, 下田正, 前島大樹, 大上能弘, 大谷優里花, 金谷晋之介, 飯村俊, 関口直太, 浅川寛太, 畠山温, 平山賀一, 若狭智嗣, LEVY C.D.P, PEARSON M.R., LASSEN J., LI R.

日本物理学会講演概要集(CD-ROM)75 ( 1 )   2020

Second report on offline tests for RF carpet transportation in RF ion guide gas cell at the SLOWRI facility Peer-reviewed

S. Iimura, A. Takamine, M. Rosenbusch, M. Wada, S. Chen, J. Liu, P. Schury, T. Sonoda, T. M. Kojima, Y. X. Watanabe, A. Odahara, H. Ishiyama

RIKEN Accelerator Progress Report 2019 Vol. 53   2020

Study of neutron unbound states in 18O by β-delayed neutron decay of 18N Peer-reviewed

H. Umehara, S. Iimura, S. Kanaya, T. Hara, M. Kinoshita, R. Nakajima, R. Shudo, R. Wakabayashi, M. Fukutome, M. Hisamatsu, H. Nishibata, T. Shimoda, A. Odahara

RCNP Annual Report 2018   4 2019

Precision half-life measurement of 18N

S.Iimura, M. Fukutome, M. Hisamatsu, H. Umehara, S. Kanaya, H. Nishibata, A. Odahara, T. Shimoda, T. Hara, M. Kinoshita, R. Nakajima, R. Shudo, R. Wakabayashi

Bulletin of the American Physical Society63 ( 12 )   10 2018

Investigating Shell Structure: Mass Measurements of Sc, Ti, and V Isotopes at new magic N = 32 and N = 34

Shun Iimura

2023 Fall Meeting APS DNP and JPS  29 11 2023 

Development of RF carpet type He gas cell and high-precision mass measurement of neutron-rich nuclei at around A=50−60 with MRTOF Invited

Shun Iimura

RIBF Users Meeting 2023  6 9 2023 

SCRITにおけるISOLビームの同重体分離に向けて

飯村俊

第１２回停止・低速RIビームを用いた核分光研究会（12th SSRI）  5 9 2023 

Exploring Shell Structure at N=32, 34: Mass Measurements of Sc, Ti, and V Isotopes

Shun IImura

The 1st IReNA-Ukakuren Joint Workshop “Advancing Professional Development in Nuclear Astrophysics and Beyond”  28 8 2023 

A new study of N = 34 subshell structure probed by high-precision mass measurements Invited

Shun Iimura

JSPS/NSFC/NRF A3 Foresight Program Annual Meeting 2022 "Nuclear Physics in the 21st Century"  14 2 2023 

A new study of the N=32 and N=34 shell gap for Ti and V by the first high-precision MRTOF mass measurements at BigRIPS-SLOWRI Invited

S. Iimura

RIBF Users Meeting 2022  9 2022 

理研BigRIPS SLOWRIにおけるZD-MRTOF装置を用いた中性子過剰Sc, Ti, V核の系統的核構造研究

飯村俊, M.Rosenbusch, 高峰愛子, 和田道治, S. Chen, D. Hou, J. Liu, W. Xian, S. Yan, P. Schury, 木村創大, 庭瀬暁隆, 伊藤由太, 園田哲, 小島隆夫, 渡辺裕, 平山賀一, 宮武宇也, S. Naimi, 道正新一郎, 西村俊二, 小田原厚子, 石山博恒, 角田佑介, 清水則孝, 大塚孝治

日本物理学会2022年秋季大会  9 2022 

Mass measurement of neutron-rich nuclei of Sc, Ti, and V region using the new ZD-MRTOF system

S. Iimura, M. Rosenbusch, A. Takamine, M. Wada, S. Chen, D. Hou, J. Liu, W. Xian, S. Yan, P. Schury, S. Kimura, T. Niwase, H. Koura, Y. Ito, T. Sonoda, T. M. Kojima, Y. X. Watanabe, Y. Hirayama, H. Miyatake, S. Naimi, S. Michimasa, S. Nishimura, A. Odahara, H. Ishiyama

The 16th International Symposium on Nuclei in the Cosmos  9 2021 

Mass measurement of neutron-rich nuclei of Sc, Ti, and V region using the new ZD-MRTOF system

S. Iimura, M. Rosenbusch, A. Takamine, M. Wada, S. Chen, D. Hou, J. Liu, W. Xian, S. Yan, P. Schury, S. Kimura, T. Niwase, H. Koura, Y. Ito, T. Sonoda, T. M. Kojima, Y. X. Watanabe, Y. Hirayama, H. Miyatake, S. Naimi, S. Michimasa, S. Nishimura, A. Odahara, H. Ishiyama

日本物理学会2021年秋季大会  9 2021 

理研 BigRIPS SLOWRI におけるRFカーペットガスセルの開発 ―オンライン実験と質量測定―

飯村俊, 高峰愛子, M. Rosenbusch, 和田道治, S. Chen, D. Hou, J. Liu, W. Xian, S. Yan, P. Schury, 木村創大, 庭瀬暁隆, 伊藤由太, 園田哲, 小島隆夫, 渡辺裕, S, Naimi, 道正新一郎, 西村俊二, 小田原厚子, 石山博恒

第76回日本物理学会年次大会  3 2021 

理研 BigRIPS SLOWRIにおけるRFカーペットガスセルの開発

飯村俊, 高峰愛子, M. Rosenbusch, 和田道治, S. Chen, J. Liu, W. Xian, D. Hou, S. Yan, P. Schury, 園田哲, 小島隆夫, 渡辺裕, 小田原厚子, 石山博恒

日本物理学会2020年秋季大会  9 2020 

理研BigRIPS SLOWRIにおけるRFカーペットガスセルの開発

飯村俊, 高峰愛子, M. Rosenbusch, 和田道治, S. Chen, J. Liu, P. Schury, 園田哲, 小島隆夫, 渡辺裕, 小田原厚子, 石山博恒

令和元年度KUR専門研究会「短寿命RIを用いた核分光と核物性研究Ⅵ」兼「第11回停止・低速RIビームを用いた核分光研究会」  1 2020 

Development of gas cell to stop and collect high energy RI beam, and extract radioactive ions with a high efficiency

S. Iimura, A. Takamine, J. Liu, S. Chen, M. Rosenbusch, M. Wada, H. Ishiyama

The ALL-RIKEN Workshop 2019  12 2019 

High Precision Half-life Measurement of 18N

S. Iimura, M. Fukutome, M. Hisamatsu, H. Umehara, S. Kanaya, H. Nishibata, A. Odahara, T. Shimoda, T. Hara, M. Kinoshita, R. Nakajima, R. Shudo, R. Wakabayashi

5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan  10 2018 

Efficiency of EURICA for low-energy gamma-ray by using Geant4

S. Iimura, A. Odahara, A. Yagi, P. Lee, the EURICA collaboration

The 16th CNS International Summer School  8 2017 

Inertia Experiment Device & Huge Scaled Dynamics Carts

S. Iimura, Y. Gomi, Y. Kawamura

2016 International Conference of East-Asian Association for Science Education  8 2016