A Set of Ionization Chamber Telescope Used in Dissipative Heavy Ion Reaction Measurement

LI Song-Lin; WANG Qi; DONG Yu-Chuan; XU Hua-Gen; CHEN Ruo-Fu; DUAN Li-Min; WU He-Yu; XU Hu-Shan; MA Yue; HAN Jian-Long

Chinese Physics C> 2004, Vol. 28> Issue(10) : 1090-1093

A Set of Ionization Chamber Telescope Used in Dissipative Heavy Ion Reaction Measurement

Institute of Modern Physics,CAS,Lanzhou 730000,China2 Graduate School,Chinese Academy of Sciences,Beijing 100039,China

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Abstract：
In order to identify the charge number Z of the projectile like fragments emitted from the dissipative heavy ion reactions,a set of ΔE-E telescope has been constructed,which consists of two ionization chambers for ΔE₁ and ΔE₂ in series followed by a position sensitive semiconductor silicon detector to deposit residual energy E. The trajectory of the incident particles is parallel to the direction of the electric field in the ionization chamber. The detector system has a lower energy detection threshold,compact configuration and capability against the disturbance from the electromagnetic wave. The charge resolution of Z/ΔZ≈30 of the telescope has been achieved in an experimental measurement of excitation functions of dissipative heavy ion reaction.

References

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LI Song-Lin, WANG Qi, DONG Yu-Chuan, XU Hua-Gen, CHEN Ruo-Fu, DUAN Li-Min, WU He-Yu, XU Hu-Shan, MA Yue and HAN Jian-Long. A Set of Ionization Chamber Telescope Used in Dissipative Heavy Ion Reaction Measurement[J]. Chinese Physics C, 2004, 28(10): 1090-1093.

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Received: 2004-03-08
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 Set of Ionization Chamber Telescope Used in Dissipative Heavy Ion Reaction Measurement

Corresponding author: LI Song-Lin,

Institute of Modern Physics,CAS,Lanzhou 730000,China2 Graduate School,Chinese Academy of Sciences,Beijing 100039,China

Received Date: 2004-03-08

Accepted Date: 1900-01-01

Available Online: 2004-10-05

Abstract: In order to identify the charge number Z of the projectile like fragments emitted from the dissipative heavy ion reactions,a set of ΔE-E telescope has been constructed,which consists of two ionization chambers for ΔE₁ and ΔE₂ in series followed by a position sensitive semiconductor silicon detector to deposit residual energy E. The trajectory of the incident particles is parallel to the direction of the electric field in the ionization chamber. The detector system has a lower energy detection threshold,compact configuration and capability against the disturbance from the electromagnetic wave. The charge resolution of Z/ΔZ≈30 of the telescope has been achieved in an experimental measurement of excitation functions of dissipative heavy ion reaction.

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A Set of Ionization Chamber Telescope Used in Dissipative Heavy Ion Reaction Measurement

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