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

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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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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.

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Received: 1900-01-01
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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 of²⁴¹Am (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 /u⁴⁰Ar+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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A Two-Dimensional Poeition Sensitive Multi-Stage Detection System with a Wide Dynamic Range for Heavy Ion Reaction

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