Experimental Study of Accelerated Aging of Small Cell Drift Chamber Prototype with Radioactive Source

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CHEN Chang, MA Yuan-Yuan, LIU Jian-Bei, CHEN Yuan-Bai, JIN Yan, LIU Rong-Guang, MA Xiao-Yan, QIN Zhong-Hua, TANG Xiao, WANG Lan, WU Ling-Hui, XU Mei-Hang, ZHU Qi-, Experimental Study of Accelerated Aging of Small Cell Drift Chamber Prototype with Radioactive Source[J]. Chinese Physics C, 2005, 29(3): 282-287.
CHEN Chang, MA Yuan-Yuan, LIU Jian-Bei, CHEN Yuan-Bai, JIN Yan, LIU Rong-Guang, MA Xiao-Yan, QIN Zhong-Hua, TANG Xiao, WANG Lan, WU Ling-Hui, XU Mei-Hang, ZHU Qi-, Experimental Study of Accelerated Aging of Small Cell Drift Chamber Prototype with Radioactive Source[J]. Chinese Physics C, 2005, 29(3): 282-287. shu
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Received: 2004-08-10
Revised: 1900-01-01
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Experimental Study of Accelerated Aging of Small Cell Drift Chamber Prototype with Radioactive Source

    Corresponding author: CHEN Chang,
  • Institute of High Energy Physics,CAS,Beijing 100049,China2 Graduate School of the Chinese Academy of Sciences,Beijing 100049,China

Abstract: An experimental study of accelerated aging of BESIII drift chamber prototype with radioactive source 55Fe 5.9 keV X-ray(1.85X109 Bq)) was done. The dependence of anode current and full energy photo-electron peak of 55Fe 5.9 keV X-ray on the accumulated Q was measured. When total charge Q=0.07C/cm is accumulated (equivalent to 5 operation years of BESIII DC) the anode current is 87% of primary value and aging ratio R=-0.19%/(mC/cm) for small cell was measured.

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