Development of solid Ar-Xe total energy detector for heavy ion

2012 Fiscal Year Final Research Report

• Project/Area Number: 23654074
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tohoku University
• Principal Investigator: KOBAYASHI Toshio 東北大学, 大学院・理学研究科, 教授 (30186754)
• Project Period (FY): 2011 – 2012
• Keywords: 粒子識別 / 全エネルギー検出器

Research Abstract

For invariant mass spectroscopy using heavy RI beams of about 300 MeV/u and mass 100, mass identification of the projectile fragment in the same energy/mass region. For this purpose, total energy detector with about 0.1% resolution is required. We have developed liquid/solid detector made of Ar with a small amount of Xe which are cooled by liquid nitrogen. Liquidation of Ar and partial solidification of Ar have been observed.

Research Products

• [Journal Article] N=16 spherical shell closure in ^<24>O (2012)
  • Author(s): K.Tshoo, Y.Satou, H.Bhang, S.Choi, T.Nakamura, Y.Kondo, S.Deguchi, Y.Kawada, N.Kobayashi, Y.Nakayama, K.N.Tanaka, N.Tanaka, N.Aoi, M.Ishihara, T.Motobayashi, H.Otsu, H.Sakurai, S.Takeuchi, Y.Togano, K.Yoneda, Z.H.Li, F.Delaunay, J.Gibelin, F.M.Marques, N.A.Orr, T.Honda, M.Matsushita, T.Kobayashi, Y.Miyashita, T.Sumikama, K.Yoshinaga, S.Shimoura, D.Sohler, T.Zheng, and Z.X.Cao
  • Journal Title: Physical Review Letters Volume: 109 Pages: 022501
  • URL: http://link.aps.org/doi/10.1103/PhysRevLett.109.022501査読有
  • Peer Reviewed
• [Journal Article] Scintillating fiber detector for momentum tagging light unstable nuclei at intermediate energies (2012)
  • Author(s): Y.Matsuda, T.Kobayashi, M.Itoh, K.Ozeki, H.Sakaguchi, J.Zenihiro, Y.Iwao, H.Otsu, H.Takeda, and S.Terashima
  • Journal Title: Nuclear Instruments amd methods in physics research Volume: A670 Pages: 25
  • URL: http://dx.doi.org/10.1016/j.nima.2011.12.029
  • Peer Reviewed
• [Journal Article] ^<14>Be(p,n)^<14>B reaction at 69 MeV in inversekinematics (2011)
  • Author(s): Y.Satou, T.Nakamura, Y.Kondo, N.Matsui, Y.Hashimoto, T.Nakabayashi, T.Okumura, M.Shinohara, N.Fukuda, T.Sugimoto, H.Otsu, Y.Togano, T.Motobayashi, H.Sakurai, Y.Yanagisawa, N.Aoi, S.Takeuchi, T.Gomi, M.Ishihara, S.Kawai, H.J.Ong, T.K.Onishi, S.Shimoura,M.Tamaki, T.Kobayashi, Y.Matsuda, N.Endo, and M.Kitayama
  • Journal Title: Physics Letters Volume: B697 Pages: 459
  • URL: http://dx.doi.org/10.1016/j.physletb.2011.02.045
  • Peer Reviewed
• [Journal Article] Large, thin solid hydrogen target usingpara-H2 (2011)
  • Author(s): Y.Matsuda, H.Sakaguchi, J.Zenihiro, S.Ishimoto, S.Suzuki, H.Otsu, T.Ohnishi, H.Takeda, K.Ozeki, K.Tanaka, S.Terashima, Y.Maeda, T.Kobayashi, A. Koreeda, and K.Kamei
  • Journal Title: Nuclear instruments and methods in physics research Volume: A643 Pages: 6
  • URL: http://dx.doi.org/10.1016/j.nima.2011.04.017
  • Peer Reviewed
• [Presentation] SAMURAI Spectrometer for RI BeamExperiments (2012)
  • Author(s): T. Kobayashi
  • Organizer: The 16th IUPAP International Conference on Electromagnetic Isotope Separators and Techniques Related to Their Applications (EMIS2012)
  • Place of Presentation: Matsue, Japan
  • Year and Date: 20121202-20121207
• [Presentation] Status of Samurai spectrometer at RIBF (2012)
  • Author(s): T. Kobayashi
  • Organizer: The 8th China- Japan Joint Nuclear PhysicsSymposium (CJJNPS2012)
  • Place of Presentation: Beijing, China
  • Year and Date: 20121015-20121019