Performance Test of PPAC in Different Gases

WANG Meng; GUO Zhong-Yan; ZHAN Wen-Long; XIAO Guo-Qing; XU Hu-Shan; MAO Rui-Shi; HU Zheng-Guo; CHEN Zhi-Qiang; SUN Zhi-Yu; LI Jia-Xing; WANG Wu-Sheng; CHEN Li-Xin; LI Chen; BAI Jie; ZHANG Xiao-An; ZHANG Jin-Xia; LI Cun-Fan

Chinese Physics C> 2002, Vol. 26> Issue(12) : 1285-1290

Performance Test of PPAC in Different Gases

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000,China

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Abstract：
A two-dimension position sensitive parallel-plate avalanche (PPAC) detector has been developed for RIBLL. The detector consists of one anode and two cathodes. In each cathode a resistance chain is used to readout position signals. The detector has been tested in different operating gases with an α source. When the detector is at 7mb flowing rate of isobutane and +500V on anode, the position resolution of 0.76mm is obtained. For 7mb C₃F₈ and +595V on anode, the position resolution is 0.64mm. The efficiencies are around 99.1% in the cases of C₃F₈ and isobutane.

References

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. Charpak G et al.Nucl.Instr.and Meth.,1968,62:262 2. Freeman C G ,Herrick D M ,Bryan D C et al.Nucl.Instr.and Meth.,1994,A357:450—4573. Kumahai H ,Tanihata I.RIKEN Accel.Prog.Rep.,Wako Shi,Saitama:The Institute of Physical and Chemical Research,1998,314. ZHAN WenLong,GUO ZhongYan,LIU GuanHua et al.Science in China(Series A),1999,42(5):529—5365. GUO ZhongYan,ZHAN WenLong,LIU GuanHua et al.Acta Physica Sinica(Overseas Edition),1999,8(1):21—266. GUO ZhongYan,ZHAN WenLong,SUN ZhiYu et al.High Energy Phys.and Nucl.Phys.,1999,23(3):213—219(in Chinese)(郭忠言,詹文龙,孙志宇等.高能物理与核物理,1999,23(3):213—219)7. WANG Meng,GUO ZhongYan,ZHAN WenLong et al.Nuclear Techniques,to be published(in Chinese)(王猛,郭忠言,詹文龙等.核技术,待发表)8. Binon F et al.Nucl.Instr.and Meth.,1971,94:279. Stelzer H .Nuclear Physics,1981,A354:433c10. Hempel G et al.Nucl.Instr.and Meth.,1975,131:445

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WANG Meng, GUO Zhong-Yan, ZHAN Wen-Long, XIAO Guo-Qing, XU Hu-Shan, MAO Rui-Shi, HU Zheng-Guo, CHEN Zhi-Qiang, SUN Zhi-Yu, LI Jia-Xing, WANG Wu-Sheng, CHEN Li-Xin, LI Chen, BAI Jie, ZHANG Xiao-An, ZHANG Jin-Xia and LI Cun-Fan. Performance Test of PPAC in Different Gases[J]. Chinese Physics C, 2002, 26(12): 1285-1290.

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Received: 2001-12-27
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

Performance Test of PPAC in Different Gases

Corresponding author: WANG Meng,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000,China

Received Date: 2001-12-27
Accepted Date: 1900-01-01
Available Online: 2002-12-05

Abstract: A two-dimension position sensitive parallel-plate avalanche (PPAC) detector has been developed for RIBLL. The detector consists of one anode and two cathodes. In each cathode a resistance chain is used to readout position signals. The detector has been tested in different operating gases with an α source. When the detector is at 7mb flowing rate of isobutane and +500V on anode, the position resolution of 0.76mm is obtained. For 7mb C₃F₈ and +595V on anode, the position resolution is 0.64mm. The efficiencies are around 99.1% in the cases of C₃F₈ and isobutane.