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Chinese Physics C> 1996, Vol. 20> Issue(3) : 204-210 

A Two-Dimensional Poeition Sensitive Multi-Stage Detection System with a Wide Dynamic Range for Heavy Ion Reaction

  •  Institute of Modem Physics, The Chinese Academy of Sciences, Lanzhou 730000

  • A two-dimensional position sensitive multi-stage detection system with a wide dynamic range for heavy ion reaction has been developed. It consists of four parts: a gas filled axial ionization chamber(IC), a position sensitive silicon detector(PSSD)(45×45)mm, 400μm), a large area PIN silicon photodiode(SPD) ((48×48)mm, 300μm) and the 16 element CsI(Tl) scintillation detector. The energy resolutions for IC and PSSD tested with α-source of 241Am (5.486MeV) were 3% and 2.6% respectively. Fragments with Z values from Z=2 to Z=21 were identified in the reaction of 25MeV /u 40Ar+115In. The Z resolving power was Z/△Z≈44.5(FWHM) for Z=18. The position resolution of PSSD was (0.86± 0.03)mm (FWHM).And the energy dynamic range for a particles was about 2-130MeV.
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    [1] L.Campajola et al,Nucl Instr.and Meth.,A342（1994）534.[2] LIon et al,Nucl Instr and Meth,A325（1993）458.[3] G.Prete et al,Nucl Instr and meth.,A315（1992）109.[4]郭忠言等，T R4终端高性能探测系统，高能物理与核物理，19（1995）865.[5] C.R.Cruhn et al.,Nucl Instr.and Instr.and meth.,196（1982）33.[6] H.W.Fulbright,Nucl Instr.and Meth.,162（1979）21.[7]王金川等，核电子学与探测技术，14（1994）135.[8] Zhan Wenlong et al,Radioactive Ion Beamsat H IR FL,Nucl Phys,to be published.

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Wang Jinchuan, Zhan Wenlong, Guo Zhongyan, Xi Hongfei, Zhou Jianqun, Zhao Yondong, Lei Huaihong and Luo Yongfeng. A Two-Dimensional Poeition Sensitive Multi-Stage Detection System with a Wide Dynamic Range for Heavy Ion Reaction[J]. Chinese Physics C, 1996, 20(3): 204-210.
Wang Jinchuan, Zhan Wenlong, Guo Zhongyan, Xi Hongfei, Zhou Jianqun, Zhao Yondong, Lei Huaihong and Luo Yongfeng. A Two-Dimensional Poeition Sensitive Multi-Stage Detection System with a Wide Dynamic Range for Heavy Ion Reaction[J]. Chinese Physics C, 1996, 20(3): 204-210. shu
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Received: 1900-01-01
Revised: 1900-01-01
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A Two-Dimensional Poeition Sensitive Multi-Stage Detection System with a Wide Dynamic Range for Heavy Ion Reaction

    Corresponding author: Wang Jinchuan,
  • Institute of Modem Physics, The Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1996-03-05

Abstract: A two-dimensional position sensitive multi-stage detection system with a wide dynamic range for heavy ion reaction has been developed. It consists of four parts: a gas filled axial ionization chamber(IC), a position sensitive silicon detector(PSSD)(45×45)mm, 400μm), a large area PIN silicon photodiode(SPD) ((48×48)mm, 300μm) and the 16 element CsI(Tl) scintillation detector. The energy resolutions for IC and PSSD tested with α-source of 241Am (5.486MeV) were 3% and 2.6% respectively. Fragments with Z values from Z=2 to Z=21 were identified in the reaction of 25MeV /u 40Ar+115In. The Z resolving power was Z/△Z≈44.5(FWHM) for Z=18. The position resolution of PSSD was (0.86± 0.03)mm (FWHM).And the energy dynamic range for a particles was about 2-130MeV.

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