Performance information

• Conceptional design of a He beam accelerator system for 211At production　　　　　　　　　　　　　　　
  Daisuke Nagae; Aki Murata; Shota Ikeda; Shosuke Kikuchi; Ryoichi Yoshimura; Yoichi Ma; Daigo Narita; Noriyosu Hayashizaki
  Progress in Nuclear Science and Technology, Volume：7, First page：357, Last page：363, Mar. 2025, [Reviewed]
  The Atomic Energy Society of Japan, Scientific journal
  DOI：https://doi.org/10.15669/pnst.7.357
  DOI ID：10.15669/pnst.7.357, ISSN：2185-4823
• Performance of a precise isochronous magnetic field over a wide momentum range in the Rare-RI Ring　　　　　　　　　　　　　　　
  Y. Abe; Y. Yamaguchi; M. Wakasugi; H. Baba; T. Fujinawa; Z. Ge; A. Goto; S. Michimasa; H. Miura; T. Moriguchi; D. Nagae; S. Naimi; J. Ohnishi; S. Omika; S. Ota; A. Ozawa; F. Suzaki; H. Suzuki; S. Suzuki; N. Tadano; A. Tokuchi; T. Uesaka; K. Wakayama; T. Yamaguchi; Y. Yano
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume：1072, First page：170083, Last page：170083, Mar. 2025, [Reviewed]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.nima.2024.170083
  DOI ID：10.1016/j.nima.2024.170083, ISSN：0168-9002
• Production Cross Sections of Residual Nuclides from 93Zr + p at 27 MeV/Nucleon
  Jongwon Hwang; Thomas Chillery; Masanori Dozono; Nobuaki Imai; Shin’ichiro Michimasa; Toshiyuki Sumikama; Nobuyuki Chiga; Shinsuke Ota; Shinsuke Nakayama; Deuk Soon Ahn; Olga Beliuskina; Kazuya Chikaato; Naoki Fukuda; Seiya Hayakawa; Eiji Ideguchi; Kotaro Iribe; Chihiro Iwamoto; Shoichiro Kawase; Keita Kawata; Noritaka Kitamura; Kensuke Kusaka; Shoichiro Masuoka; Hareru Miki; Hiroari Miyatake; Daisuke Nagae; Ryo Nakajima; Keita Nakano; Masao Ohtake; Shunichiro Omika; Hooi Jin Ong; Hideaki Otsu; Hiroyoshi Sakurai; Philipp Schrock; Hideki Shimizu; Yohei Shimizu; Xiaohui Sun; Daisuke Suzuki; Hiroshi Suzuki; Motonobu Takaki; Maya Takechi; Hiroyuki Takeda; Satoshi Takeuchi; Takashi Teranishi; Rieko Tsunoda; He Wang; Yukinobu Watanabe; Yutaka X Watanabe; Kathrin Wimmer; Kentaro Yako; Hiroki Yamada; Kazunari Yamada; Hidetoshi Yamaguchi; Lei Yang; Rikuto Yanagihara; Yoshiyuki Yanagisawa; Hiroya Yoshida; Koichi Yoshida; Susumu Shimoura
  Progress of Theoretical and Experimental Physics, Sep. 2024, [Reviewed]
  Abstract
  
  Nuclear transmutation emerges as a promising approach for reprocessing high-level waste, specifically treating long-lived nuclides like 93Zr from spent fuel. It is essential to accumulate reaction data for these nuclei to advance this prominent treatment and to build a comprehensive understanding of reaction mechanisms. In this study, the residual production cross sections resulting from proton-induced reactions on 93Zr were measured at 27 MeV/nucleon in inverse kinematics. At the RI Beam Factory (RIBF) the OEDO beamline was used to deduce production cross sections for isotopes, 91 − 93Nb, 91, 92Zr, and 88, 89Y. Comparing the results from this study and prior research with calculated excitation functions, a moderate agreement is found with theoretical predictions derived from TALYS and CCONE. The measured cross sections offer valuable insights for future considerations in nuclear-waste treatment facilities. This is particularly relevant for facilities exploring innovative methods, such as accelerator-driven systems.
  Oxford University Press (OUP), Scientific journal
  DOI：https://doi.org/10.1093/ptep/ptae139
  DOI ID：10.1093/ptep/ptae139, eISSN：2050-3911
• Investigation of total reaction cross sections for proton-dripline nuclei F17 and Ne17 on a proton target
  T. Moriguchi; R. Kagesawa; A. Ozawa; W. Horiuchi; Y. Abe; M. Amano; D. Kamioka; A. Kitagawa; M. Mukai; D. Nagae; M. Sakaue; S. Sato; B. H. Sun; S. Suzuki; T. Suzuki; T. Yamaguchi; A. Yano; K. Yokota
  Physical Review C, Volume：110, Number：1, Jul. 2024, [Reviewed]
  American Physical Society (APS), Scientific journal
  DOI：https://doi.org/10.1103/physrevc.110.014607
  DOI ID：10.1103/physrevc.110.014607, ISSN：2469-9985, eISSN：2469-9993
• Isochronous mass spectrometry at the RIKEN Rare-RI Ring facility
  D. Nagae; S. Omika; Y. Abe; Y. Yamaguchi; F. Suzaki; K. Wakayama; N. Tadano; R. Igosawa; K. Inomata; H. Arakawa; K. Nishimuro; T. Fujii; T. Mitsui; T. Yamaguchi; T. Suzuki; S. Suzuki; T. Moriguchi; M. Amano; D. Kamioka; A. Ozawa; S. Naimi; Z. Ge; Y. Yanagisawa; H. Baba; S. Michimasa; S. Ota; G. Lorusso; Yu. A. Litvinov; M. Wakasugi; T. Uesaka; Y. Yano
  Physical Review C, Volume：110, Number：1, Jul. 2024, [Reviewed]
  American Physical Society (APS), Scientific journal
  DOI：https://doi.org/10.1103/physrevc.110.014310
  DOI ID：10.1103/physrevc.110.014310, ISSN：2469-9985, eISSN：2469-9993
• Neutron capture reaction cross-section of 79Se through the 79Se(d,p) reaction in inverse kinematics　　　　　　　　　　　　　　　
  N. Imai; M. Dozono; S. Michimasa; T. Sumikama; S. Ota; S. Hayakawa; J.W. Hwang; K. Iribe; C. Iwamoto; S. Kawase; K. Kawata; N. Kitamura; S. Masuoka; K. Nakano; P. Schrock; D. Suzuki; R. Tsunoda; K. Wimmer; D.S. Ahn; O. Beliuskina; N. Chiga; N. Fukuda; E. Ideguchi; K. Kusaka; H. Miki; H. Miyatake; D. Nagae; S. Ohmika; M. Ohtake; H.J. Ong; H. Otsu; H. Sakurai; H. Shimizu; Y. Shimizu; X. Sun; H. Suzuki; M. Takaki; H. Takeda; S. Takeuchi; T. Teranishi; Y. Watanabe; Y.X. Watanabe; K. Yako; H. Yamada; H. Yamaguchi; L. Yang; R. Yanagihara; Y. Yanagisawa; K. Yoshida; S. Shimoura
  Physics Letters B, Volume：850, First page：138470, Last page：138470, Mar. 2024, [Reviewed]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.physletb.2024.138470
  DOI ID：10.1016/j.physletb.2024.138470, ISSN：0370-2693
• Studying the impact of deuteron non-elastic breakup on 93Zr + d reaction cross sections measured at 28 MeV/nucleon
  Thomas Chillery; Jongwon Hwang; Masanori Dozono; Nobuaki Imai; Shin’ichiro Michimasa; Toshiyuki Sumikama; Nobuyuki Chiga; Shinsuke Ota; Shinsuke Nakayama; Deuk Soon Ahn; Olga Beliuskina; Kazuya Chikaato; Naoki Fukuda; Seiya Hayakawa; Eiji Ideguchi; Kotaro Iribe; Chihiro Iwamoto; Shoichiro Kawase; Keita Kawata; Noritaka Kitamura; Kensuke Kusaka; Shoichiro Masuoka; Hareru Miki; Hiroari Miyatake; Daisuke Nagae; Ryo Nakajima; Keita Nakano; Masao Ohtake; Shunichiro Omika; Hooi Jin Ong; Hideaki Otsu; Hiroyoshi Sakurai; Philipp Schrock; Hideki Shimizu; Yohei Shimizu; Xiaohui Sun; Daisuke Suzuki; Hiroshi Suzuki; Motonobu Takaki; Maya Takechi; Hiroyuki Takeda; Satoshi Takeuchi; Takashi Teranishi; Rieko Tsunoda; He Wang; Yukinobu Watanabe; Yutaka X Watanabe; Kathrin Wimmer; Kentaro Yako; Hiroki Yamada; Kazunari Yamada; Hidetoshi Yamaguchi; Lei Yang; Rikuto Yanagihara; Yoshiyuki Yanagisawa; Hiroya Yoshida; Koichi Yoshida; Susumu Shimoura
  Progress of Theoretical and Experimental Physics, Volume：2023, Number：12, Nov. 2023, [Reviewed]
  Abstract
  
  The deuteron is a loosely bound system that can easily break up into its constituent proton and neutron whilst in the presence of Coulomb and nuclear fields. Previous experimental studies have shown that this breakup process has a significant impact on residual-nucleus production from deuteron bombardment in the high-energy range of 50–210 MeV/nucleon. However, there remains a lack of cross-section data at energies below 50 MeV/nucleon. The current study determined 93Zr + d reaction cross sections under inverse kinematics at approximately 28 MeV/nucleon using the BigRIPS separator, OEDO beamline, and SHARAQ spectrometer. Cross sections from this research were compared with previous measurements and theoretical calculations. The experimental results show a large enhancement of the production cross sections of residual nuclei, especially those produced from a small number of particle emissions, compared to the proton-induced reaction data at similar bombarding energy. The DEURACS calculation, which quantitatively takes deuteron-breakup effects into account, reproduces the data well. As a long-lived fission product, 93Zr remains a challenge for nuclear-waste disposal and treatment. This study’s low-energy data may assist future consideration of nuclear-waste treatment facilities, where 93Zr + d may feasibly transmute the waste into short-lived/stable nuclei.
  Oxford University Press (OUP), Scientific journal
  DOI：https://doi.org/10.1093/ptep/ptad139
  DOI ID：10.1093/ptep/ptad139, eISSN：2050-3911
• Matter radius of the doubly-magic $$^{56}$$Ni measured in a storage ring
  M. von Schmid; T. Aumann; S. Bagchi; S. Bönig; M. Csatlós; I. Dillmann; C. Dimopoulou; P. Egelhof; V. Eremin; T. Furuno; H. Geissel; R. Gernhäuser; M. N. Harakeh; A.-L. Hartig; S. Ilieva; N. Kalantar-Nayestanaki; O. Kiselev; H. Kollmus; C. Kozhuharov; A. Krasznahorkay; Th. Kröll; M. Kuilman; S. Litvinov; Yu. A. Litvinov; M. Mahjour-Shafiei; M. Mutterer; D. Nagae; M. A. Najafi; C. Nociforo; F. Nolden; U. Popp; C. Rigollet; R. Roth; S. Roy; C. Scheidenberger; M. Steck; B. Streicher; L. Stuhl; M. Thürauf; T. Uesaka; H. Weick; J. S. Winfield; D. Winters; P. J. Woods; T. Yamaguchi; K. Yue; J. C. Zamora Cardona; J. Zenihiro
  The European Physical Journal A, Volume：59, Number：4, Apr. 2023, [Reviewed]
  Abstract
  
  The matter radius of the doubly magic$$^{56}$$Ni was extracted from a measurement of the differential cross section by employing, for the first time, elastic proton scattering in inverse kinematics with a radioactive beam at$$E_{kin}=390.2$$ MeV/nucleon circulating in a storage ring and passing an internal hydrogen gas-jet target with a revolution frequency of around 2 MHz. The novel experimental scheme is based on UHV-compatible Si detectors operated as active vacuum windows, which were implemented in the ESR storage ring at GSI. A matter radius$$<r_{m}^{2}>^{1/2}=3.74^{+0.03}_{-0.06}$$ fm was extracted for the doubly-magic self-conjugate nucleus$$^{56}$$Ni.
  Springer Science and Business Media LLC, Scientific journal
  DOI：https://doi.org/10.1140/epja/s10050-023-00967-z
  DOI ID：10.1140/epja/s10050-023-00967-z, eISSN：1434-601X
• Probing Optimal Reaction Energy for Synthesis of Element 119 from ⁵¹V+²⁴⁸Cm Reaction with Quasielastic Barrier Distribution Measurement
  Masaomi Tanaka; Pierre Brionnet; Miting Du; Julie Ezold; Kevin Felker; Benoît J.P. Gall; Shintaro Go; Robert K. Grzywacz; Hiromitsu Haba; Kouichi Hagino; Susan Hogle; Satoshi Ishizawa; Daiya Kaji; Sota Kimura; Thomas T. King; Yukiko Komori; Raiden K. Lemon; Milan G. Leonard; Kouji Morimoto; Kosuke Morita; Daisuke Nagae; Natsuki Naito; Toshitaka Niwase; Bertis C. Rasco; James B. Roberto; Krzysztof P. Rykaczewski; Satoshi Sakaguchi; Hideyuki Sakai; Yudai Shigekawa; Daniel W. Stracener; Shelley VanCleve; Yang Wang; Kouhei Washiyama; Takuya Yokokita
  Journal of the Physical Society of Japan, Volume：91, Number：8, Aug. 2022, [Reviewed]
  Physical Society of Japan, Scientific journal
  DOI：https://doi.org/10.7566/jpsj.91.084201
  DOI ID：10.7566/jpsj.91.084201, ISSN：0031-9015, eISSN：1347-4073
• Charge-changing cross sections for Ca42–51 and effect of charged-particle evaporation induced by neutron-removal reactions
  M. Tanaka; M. Takechi; A. Homma; A. Prochazka; M. Fukuda; D. Nishimura; T. Suzuki; T. Moriguchi; D. S. Ahn; A. Aimaganbetov; M. Amano; H. Arakawa; S. Bagchi; K.-H. Behr; N. Burtebayev; K. Chikaato; H. Du; T. Fujii; N. Fukuda; H. Geissel; T. Hori; S. Hoshino; R. Igosawa; A. Ikeda; N. Inabe; K. Inomata; K. Itahashi; T. Izumikawa; D. Kamioka; N. Kanda; I. Kato; I. Kenzhina; Z. Korkulu; Y. Kuk; K. Kusaka; K. Matsuta; M. Mihara; E. Miyata; D. Nagae; S. Nakamura; M. Nassurlla; K. Nishimuro; K. Nishizuka; K. Ohnishi; M. Ohtake; T. Ohtsubo; S. Omika; H. J. Ong; A. Ozawa; H. Sakurai; C. Scheidenberger; Y. Shimizu; T. Sugihara; T. Sumikama; H. Suzuki; S. Suzuki; H. Takeda; Y. Tanaka; Y. K. Tanaka; I. Tanihata; T. Wada; K. Wakayama; S. Yagi; T. Yamaguchi; R. Yanagihara; Y. Yanagisawa; K. Yoshida; T. K. Zholdybayev
  Physical Review C, Volume：106, Number：1, Jul. 2022, [Reviewed]
  American Physical Society (APS), Scientific journal
  DOI：https://doi.org/10.1103/physrevc.106.014617
  DOI ID：10.1103/physrevc.106.014617, ISSN：2469-9985, eISSN：2469-9993
• First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar ��-Process Abundance Trend at �� =122 and �� =123
  H. F. Li; S. Naimi; T. M. Sprouse; M. R. Mumpower; Y. Abe; Y. Yamaguchi; D. Nagae; F. Suzaki; M. Wakasugi; H. Arakawa; W. B. Dou; D. Hamakawa; S. Hosoi; Y. Inada; D. Kajiki; T. Kobayashi; M. Sakaue; Y. Yokoda; T. Yamaguchi; R. Kagesawa; D. Kamioka; T. Moriguchi; M. Mukai; A. Ozawa; S. Ota; N. Kitamura; S. Masuoka; S. Michimasa; H. Baba; N. Fukuda; Y. Shimizu; H. Suzuki; H. Takeda; D. S. Ahn; M. Wang; C. Y. Fu; Q. Wang; S. Suzuki; Z. Ge; Yu. A. Litvinov; G. Lorusso; P. M. Walker; Zs. Podolyak; T. Uesaka
  Physical Review Letters, Volume：128, Number：15, Apr. 2022, [Reviewed]
  American Physical Society (APS), Scientific journal
  DOI：https://doi.org/10.1103/physrevlett.128.152701
  DOI ID：10.1103/physrevlett.128.152701, ISSN：0031-9007, eISSN：1079-7114
• OEDO, the energy-degrading beamline at RI Beam Factory　　　　　　　　　　　　　　　
  Shin'Ichiro Michimasa; Jongwon Hwang; Kazunari Yamada; Shinsuke Ota; Masanori Dozono; Nobuaki Imai; Koichi Yoshida; Yoshiyuki Yanagisawa; Kensuke Kusaka; Masao Ohtake; Masafumi Matsushita; Deuk Soon Ahn; Olga Beliuskina; Nobuyuki Chiga; Kazuya Chikaato; Naoki Fukuda; Seiya Hayakawa; Eiji Ideguchi; Kotaro Iribe; Chihiro Iwamoto; Shoichiro Kawase; Keita Kawata; Noritaka Kitamura; Shoichiro Masuoka; Hiroari Miyatake; Daisuke Nagae; Ryo Nakajima; Takashi Nakamura; Keita Nakano; Shunichiro Omika; Hideaki Otsu; Hiroyoshi Sakurai; Philipp Schrock; Hideki Shimizu; Yohei Shimizu; Toshiyuki Sumikama; Xiaohui Sun; Daisuke Suzuki; Hiroshi Suzuki; Motonobu Takaki; Maya Takechi; Hiroyuki Takeda; Satoshi Takeuchi; Takashi Teranishi; Rieko Tsunoda; He Wang; Yukinobu Watanabe; Yutaka X. Watanabe; Kathrin Wimmer; Kentaro Yako; Hidetoshi Yamaguchi; Lei Yang; Hiroya Yoshida; Susumu Shimoura
  Progress of Theoretical and Experimental Physics, Volume：2019, Number：4, Apr. 2019, [Reviewed]
  The Optimized Energy Degrading Optics (OEDO) beamline is an upgrade of the High-resolution beamline at the RI Beam Factory at RIKEN. Its purpose is to measure nuclear reactions induced by radioactive ions at $10$-$50$ MeV/u. The main components of the OEDO beamline are two superconducting quadrupole triplet magnets and one radio-frequency deflector, which were recently installed. This setup produces slowed-down, well-focused radioactive-isotope beams by using a degree of freedom in the longitudinal phase space of the beam. This paper describes the OEDO beamline in detail, discusses the unique concept of its ion optics, and demonstrates its feasibility by conducting measurements with medium-mass radioactive-isotope beams.
  OXFORD UNIV PRESS INC, English, Scientific journal
  DOI：https://doi.org/10.1093/ptep/ptz007
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85082602663&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85082602663&origin=inward
  DOI ID：10.1093/ptep/ptz007, ISSN：2050-3911, eISSN：2050-3911, SCOPUS ID：85082602663, Web of Science ID：WOS:000482303700001
• Charge-changing cross-section measurements of C 12-16 at around 45A MeV and development of a Glauber model for incident energies 10A-2100A MeV　　　　　　　　　　　　　　　
  D. T. Tran; RCNP-E372 Collaboration; H. J. Ong; T. T. Nguyen; I. Tanihata; N. Aoi; Y. Ayyad; P. Y. Chan; M. Fukuda; T. Hashimoto; T. H. Hoang; E. Ideguchi; A. Inoue; T. Kawabata; L. H. Khiem; W. P. Lin; K. Matsuta; M. Mihara; S. Momota; D. Nagae; N. D. Nguyen; D. Nishimura; A. Ozawa; P. P. Ren; H. Sakaguchi; J. Tanaka; M. Takechi; S. Terashima; R. Wada; T. Yamamoto
  Physical Review C, Volume：94, Number：6, First page：064604-1, Last page：064604-9, Dec. 2016, [Reviewed]
  We have measured for the first time the charge-changing cross sections (σCC) of C12-16 on a C12 target at energies below 100A MeV. To analyze these low-energy data, we have developed a finite-range Glauber model with a global parameter set within the optical-limit approximation which is applicable to reaction cross section (σR) and σCC measurements at incident energies from 10A to 2100A MeV. Adopting the proton-density distribution of C12 known from the electron-scattering data, as well as the bare total nucleon-nucleon cross sections and the real-to-imaginary-part ratios of the forward proton-proton elastic scattering amplitude available in the literatures, we determine the energy-dependent slope parameter βpn of the proton-neutron elastic differential cross section so as to reproduce the existing σR and interaction cross-section data for C12+C12 over a wide range of incident energies. The Glauber model thus formulated is applied to calculate the σR's of C12 on a Be9 and Al27 targets at various incident energies. Our calculations show excellent agreement with the experimental data. Applying our model to the σR and σCC for the so-called neutron-skin C16 nucleus, we reconfirm the importance of measurements at incident energies below 100A MeV. The proton root-mean-square radii of C12-16 are extracted using the measured σCC's and the existing σR data. The results for C12-14 are consistent with the values from the electron scatterings, demonstrating the feasibility, usefulness of the σCC measurement, and the present Glauber model.
  American Physical Society, English, Scientific journal
  DOI：https://doi.org/10.1103/PhysRevC.94.064604
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85006168233&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85006168233&origin=inward
  DOI ID：10.1103/PhysRevC.94.064604, ISSN：2469-9993, eISSN：2469-9993, SCOPUS ID：85006168233
• Density distribution of 14Be from reaction cross-section measurements　　　　　　　　　　　　　　　
  T. Moriguchi; A. Ozawa; S. Ishimoto; Y. Abe; M. Fukuda; I. Hachiuma; Y. Ishibashi; Y. Ito; T. Kuboki; M. Lantz; D. Nagae; K. Namihira; D. Nishimura; T. Ohtsubo; H. Ooishi; T. Suda; H. Suzuki; T. Suzuki; M. Takechi; K. Tanaka; T. Yamaguchi
  Nuclear Physics A, Volume：929, First page：83, Last page：93, Sep. 2014, [Reviewed]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.nuclphysa.2014.06.003
  DOI ID：10.1016/j.nuclphysa.2014.06.003, ISSN：0375-9474
• Spectroscopy of Be-9 and observation of neutron halo structure in the states of positive parity rotational band　　　　　　　　　　　　　　　
  A. S. Demyanova; A. A. Ogloblin; A. N. Danilov; S. V. Dmitriev; S. A. Goncharov; N. Burtebaev; J. Burtebaeva; N. Saduev; T. L. Belyaeva; H. Suzuki; A. Ozawa; Y. Abe; S. Fukuoka; Y. Ishibashi; S. Ito; T. Komatsubara; T. Moriguchi; D. Nagae; R. Nishikiori; T. Niwa; K. Okumura; H. Ooishi; K. Yokoyama; S. Kubono
  INPC 2013 - INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, VOL. 1, Volume：66, 2014, [Reviewed]
  The differential cross sections of the Be-9 + alpha inelastic scattering at 30 MeV were measured at the tandem of Tsukuba University. All the known states of Be-9 up to energies similar to 12 MeV were observed and decomposed into three rotational bands, each of them having a cluster structure consisting of a Be-8 core plus a valence neutron in one of the sub-shells: p(3/2)-, s(1/2+) and p(1/2-). Existence of a neutron halo in the positive parity states was confirmed.
  E D P SCIENCES, English, International conference proceedings
  DOI：https://doi.org/10.1051/epjconf/20146602026
  DOI ID：10.1051/epjconf/20146602026, ISSN：2100-014X, Web of Science ID：WOS:000342462000047
• Density distributions of11Li deduced from reaction cross-section measurements
  T. Moriguchi; A. Ozawa; S. Ishimoto; Y. Abe; M. Fukuda; I. Hachiuma; Y. Ishibashi; Y. Ito; T. Kuboki; M. Lantz; D. Nagae; K. Namihira; D. Nishimura; T. Ohtsubo; H. Ooishi; T. Suda; H. Suzuki; T. Suzuki; M. Takechi; K. Tanaka; T. Yamaguchi
  Physical Review C, Volume：88, Number：2, Aug. 2013, [Reviewed]
  American Physical Society (APS), Scientific journal
  DOI：https://doi.org/10.1103/physrevc.88.024610
  DOI ID：10.1103/physrevc.88.024610, ISSN：0556-2813, eISSN：1089-490X
• Interaction cross sections for Ne isotopes towards the island of inversion and halo structures of 29Ne and 31Ne　　　　　　　　　　　　　　　
  M. Takechi; T. Ohtsubo; M. Fukuda; D. Nishimura; T. Kuboki; T. Suzuki; T. Yamaguchi; A. Ozawa; T. Moriguchi; H. Ooishi; D. Nagae; H. Suzuki; S. Suzuki; T. Izumikawa; T. Sumikama; M. Ishihara; H. Geissel; N. Aoi; Rui-Jiu Chen; De-Qing Fang; N. Fukuda; I. Hachiuma; N. Inabe; Y. Ishibashi; Y. Ito; D. Kameda; T. Kubo; K. Kusaka; M. Lantz; Yu-Gang Ma; K. Matsuta; M. Mihara; Y. Miyashita; S. Momota; K. Namihira; M. Nagashima; Y. Ohkuma; T. Ohnishi; M. Ohtake; K. Ogawa; H. Sakurai; Y. Shimbara; T. Suda; H. Takeda; S. Takeuchi; K. Tanaka; R. Watanabe; M. Winkler; Y. Yanagisawa; Y. Yasuda; K. Yoshinaga; A. Yoshida; K. Yoshida
  Physics Letters B, Volume：707, Number：3-4, First page：357, Last page：361, Feb. 2012, [Reviewed]
  Elsevier BV, Scientific journal
  DOI：https://doi.org/10.1016/j.physletb.2011.12.028
  DOI ID：10.1016/j.physletb.2011.12.028, ISSN：0370-2693

• 次世代ものづくりのためのマルチ高エネルギーＸ線ＣＴ技術の開発　　　　　　　　　　　　　　　
  Oct. 2023 - Sep. 2025
  Principal investigator
• Mass measurements of Ag and Pd isotopes with the Rare RI-Ring for the 2nd peak of the r-process abundance　　　　　　　　　　　　　　　
  01 Apr. 2022 - 31 Mar. 2025
  Grant amount(Total)：14430000, Direct funding：11100000, Indirect funding：3330000
  Grant number：22H01238
• 準非破壊型飛行時間検出器による超重元素探索の高効率化　　　　　　　　　　　　　　　
  Apr. 2021 - Mar. 2024
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  Grant number：21K03600
• 自動車丸ごとＣＴスキャンを可能にするＸ線発生システムの開発　　　　　　　　　　　　　　　
  Oct. 2022 - Sep. 2023
  Principal investigator
• Lifetime measurements of highly charged radioactive ions in storage rings　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), 01 Apr. 2017 - 31 Mar. 2021
  Yamaguchi Takayuki, Saitama University
  Grant amount(Total)：44200000, Direct funding：34000000, Indirect funding：10200000
  This program aims at a new development which enables in-flight decay measurements of highly charged exotic ions, by exploiting recently built heavy-ion storage ring, Rare-RI Ring, at the RI Beam Factory in RIKEN. Major developments achieved so far are following: a compact high-sensitive Schottky detector which non-destructively detects single ions stored in the storage ring, a new beam circulation monitor which measures high-energy secondary electrons emitted from a thin foil, and a long scintillating fiber detector installed along the ring circumference for decaying daughter detection.
  Grant number：17H01123
• Study of proton-rich halo nuclei via magnetic moment　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 01 Apr. 2015 - 31 Mar. 2017
  Nagae Daisuke, Institute of Physical and Chemical Research
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  Purpose of this research is a measurement of sign and value of magnetic moments for proton-rich P to study the halo structure. The sign and value are planed measure by means of beta-ray detected nuclear magnetic resonance method with rotating magnetic field (beta-NMR) method. In order to determine the sign, we have been developed a rotating magnetic field system. Also we measure the production rate and purity for 30P by using proton beam at a TANDEM ACCELERATOR COMPLEX Research Facility Center for Science and Technology, University of Tsukuba. The obtained yield and purity is enough for using in beta-NMR method. We developed a polarized proton beam for producing spin-polarized proton-rich P isotopes.
  Grant number：15K17623
• Beta decay study of stored highly charged ions　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2014 - 31 Mar. 2017
  YAMAGUCHI Takayuki; WAKASUGI Masanori; SUZUKI Takeshi; SUZAKI Fumi; OMIKA Syunichiro; WAKAYAMA Kiyoshi, Saitama University
  Grant amount(Total)：17160000, Direct funding：13200000, Indirect funding：3960000
  The present study aims at the beta-decay observation of highly charged radioactive ions stored at the storage ring, towards a deep understanding of nucleosynthesis. A high-resolution resonant Schottky pickup coupled with particle detectors enables the measurements of in-ring decays of stored ions, which would be similar to those in a stellar environment. We have precisely measured in-ring electron capture decays of hydrogen-like 142Pm, produced and separated by the in-flight fragment separator FRS, stored at the storage ring ESR for an extended period of time. In parallel, we have developed the particle detectors such as a resonant Schottky pickup, a velocity-selective Cherenkov detector, fiber scintillation detectors, and a beam monitor using delta-ray emission for the Rare-RI Ring facility at RIBF.
  Grant number：26287036
• Charenge to measure EDM of unstable nuclei　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Exploratory Research, 01 Apr. 2014 - 31 Mar. 2016
  Ozawa Akira; SASA Kimikazu; NAGAE Daisuke, University of Tsukuba
  Grant amount(Total)：3640000, Direct funding：2800000, Indirect funding：840000
  Purpose for this study is direct measurement of electric dipole moments (EDM) of unstable nuclei. For this purpose, during the research term, we performed production of unstable nuclei and measurement of polarization degree for the nuclei, that are necessary for measurement of EDM. In Research Center for Nuclear Physics in Osaka University, we performed to produce unstable nuclei 20F and 40Sc used polarized deuteron and proton, respectively, however, we could not confirm their nuclear polarization. In Tandem Accelerator Complex in University of Tsukuba, we tried new method to produce unstable nuclei; resonant proton-capture reactions. We found that unstable nuclei, 25Al and 30P can be produced effectively by this method.
  Grant number：26610056
• Development of rotating magnetic field system for the beta-NMR method　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 01 Apr. 2012 - 31 Mar. 2014
  NAGAE Daisuke, University of Tsukuba
  Grant amount(Total)：4420000, Direct funding：3400000, Indirect funding：1020000
  A rotating magnetic field system has been developed to determine the sign of magnetic moment by means of the beta-ray-detected nuclear magnetic resonance method. The rotating magnetic field is obtained using two crossed Helmholtz-like coils at right angles. The phase angles of the alternating currents for the two coils are shifted by 90 degree. Thus the resulting magnetic field is circularly polarized. By the adjustment of the phase-angle difference, a right- or left-circularly polarized magnetic field is produced. Productions of right-or left-rotating magnetic fields including a linear component were confirmed using pickup-coils.
  A performance of the system was studied with spin-polarized 20F nuclei at the Research Center for Nuclear Physics, Osaka University. The obtained sign of magnetic monet for 20F is positive and in agreement with the reported one.
  Grant number：24740141