Development of Si-CdTe detector array for study on alpha-gamma spectroscopy of superheavy nuclide

2008 Fiscal Year Final Research Report

• Project/Area Number: 19740169
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: KAJI Daiya The Institute of Physical and Chemical Research, 森田超重元素研究室, 協力研究員 (00391912)
• Project Period (FY): 2007 – 2008
• Keywords: 超重元素 / 超重核 / Si検出器 / CdTe検出器 / 核分光 / GARIS / アルファ線 / ガンマ線

Research Abstract

超重核のα-γ核分光研究にはα線検出のための Si検出器とγ線検出のためのGe検出器を組み合わせたSi-Ge検出器アレイが用いられているが,本研究ではγ線検出器としてCdTe検出器を適用し,新規にSi-CdTe検出器アレイを製作した。CdTe検出器はGe検出器と比較してエネルギー分解能の面で多少劣るが,検出効率の高さと常温で使用できる利点がある。これにより,超重核のα-γ線連続測定が可能になった。

Research Products

• [Journal Article] Target for the heaviest element production at RIKEN (2008)
  • Author(s): D. Kaji, et al.
  • Journal Title: Nucl. Instr. And Meth. A590 Pages: 198
  • Peer Reviewed
• [Journal Article] Production and Decay Properties of ^<263>Hs (2008)
  • Author(s): D. Kaji, et al.
  • Journal Title: J. Phys. Soc. Jpn. 78 Pages: 035003
  • Peer Reviewed
• [Journal Article] Performance of the Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for ^<238>U(^<22>Ne,5n)^<255>No Reaction (2008)
  • Author(s): H. Haba, D. Kaji, et al.
  • Journal Title: J. Phys. Soc. Jpn. 9 Pages: 27
  • Peer Reviewed
• [Journal Article] Startup of superheavy element chemistry at RIKEN (2008)
  • Author(s): H. Haba, D. Kaji, et al.
  • Journal Title: Eur. Phys. J. D45 Pages: 81
  • Peer Reviewed
• [Journal Article] Observation of Second decay chain from ^<278>113 (2007)
  • Author(s): K. Morita, K. Morimoto, D. Kaji, et al.
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 045001-1
  • Peer Reviewed
• [Journal Article] Experiment on the Synthesis of an Isotope ^<277>112 by ^<208>Pb(^<70>Zn,n)^<277>112 (2007)
  • Author(s): K. Morita, K. Morimoto, D. Kaji, et al.
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 043201-1
  • Peer Reviewed
• [Presentation] GARIS-II開発の現状 (2008)
  • Author(s): D. Kaji
  • Organizer: 理研超重元素化学ワークショップ2008
  • Place of Presentation: 理化学研究所
  • Year and Date: 2008-11-12
• [Presentation] PERFORMANCE OF A GAS-FILLED RECOIL SEPARATOR GARIS FOR HOT FUSION STUDY (2007)
  • Author(s): D. Kaji
  • Organizer: TAN'07
  • Place of Presentation: DAVOS@SWISS
  • Year and Date: 2007-09-25