Single Photon Time Spectra in Gas Avalanches

Han Jiaxiang; Xu Zizong; Chen Hongfang; Li Cheng; Zeng Hui

Chinese Physics C> 1996, Vol. 20> Issue(10) : 885-889

Single Photon Time Spectra in Gas Avalanches

Department of Modem Physics, University of Science and Technology of China,Hefei 230027

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Abstract：
Using the technology of the single photon time resolution, we have studied the time spectra of light emission in LP mode, SQS mode and G-M mode. The results show that the SQS streamer has a delay relative to the primary avalanche and its lasting time is about 10—30us which depends on the contents of the quenching gas and the anode high voltage.The lasting time in the G-M mode is about lμs,and that in the LP mode is only 4ns.This has fully demonstrated that the three modes have quite different characters in their individual avalanches.

References

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唐孝威等，粒子物理实验方法，高等教育出版社，1982.2.[2] R.Bouclier et al.Nucl.Instr.and Meth.88（1970）149;G.Charpak et al.IEEE Trans.Nucl.Sci.NS-25（1978）122.[3] XW.Tang,Nucl.Instr.and Meth,A307（1991）580.[4] M.Atac et al.,Nucl Instr.and Meth,A200（1982）345;G.D.Alekseev et al.Nucl Instr.and Meth.,A177（1980）385.[5] Han Jiaxiang,Li Cheng,Xu Zizong et al.Nucl Instr.and Meth,A349（1994）495.[6] 许咨宗、韩家祥、陈宏芳等，高能物理与核物理，19（1995）775.

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Han Jiaxiang, Xu Zizong, Chen Hongfang, Li Cheng and Zeng Hui. Single Photon Time Spectra in Gas Avalanches[J]. Chinese Physics C, 1996, 20(10): 885-889.

Han Jiaxiang, Xu Zizong, Chen Hongfang, Li Cheng and Zeng Hui. Single Photon Time Spectra in Gas Avalanches[J]. Chinese Physics C, 1996, 20(10): 885-889. shu

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

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沈阳化工大学材料科学与工程学院沈阳 110142

Single Photon Time Spectra in Gas Avalanches

Corresponding author: Han Jiaxiang,

Department of Modem Physics, University of Science and Technology of China,Hefei 230027

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-10-05

Abstract: Using the technology of the single photon time resolution, we have studied the time spectra of light emission in LP mode, SQS mode and G-M mode. The results show that the SQS streamer has a delay relative to the primary avalanche and its lasting time is about 10—30us which depends on the contents of the quenching gas and the anode high voltage.The lasting time in the G-M mode is about lμs,and that in the LP mode is only 4ns.This has fully demonstrated that the three modes have quite different characters in their individual avalanches.