Performance test of fine-mesh PMT in strong magnetic field
Shi F(石峰); Xue ST(薛生田); Heng YK(衡月昆); Zhao XJ(赵小健); Shu L(舒乐); Wu YM(吴元明); Li JC(李家才); Wu JJ(吴金杰); Sun ZJ(孙志嘉); Shi, F; Xue, ST; Heng, YK; Zhao, XJ; Shu, L; Wu, YM; Li, JC; Wu, JJ; Sun, ZJ
刊名HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
2004
卷号28期号:10页码:1104-1108
关键词photomultiplier tube( PMT) relative gain secondary electron emission ratio magnetic field intensity
学科分类Physics
通讯作者CAS, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
英文摘要The performance of a fine-mesh photomultiplier tube (PMT)-Hamamatsu R5924(FM) to be used for the time-of-flight (TOF) counter in the upgraded Beijing Spectrometer (BES III) was investigated in a strong magnetic field up to IT. The dependence of the PMT relative gain on the magnetic field intensity at both 0degrees and 180degrees directions were measured. It was found that the relative gain of the PMT is reduced by a factor of 50 or more at IT magnetic field compared with no field case. The relative gain of the PMT vs. the working voltage at different magnetic field intensities (0, 0.5, 1 T) were also measured. An exponential dependence of the relative gain on the working voltage was observed for a wide range of the working voltage. Moreover,the factor k in the secondary electron emission ratio 8 is measured to be less than the nominal value due to the special fine-mesh structure of PMT's dynodes and it decreases with the increasing magnetic field intensities. It is the important reason that the gain of PMT decreases in case of strong magnetic field existence.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000224543200018
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239049
专题中国科学院高能物理研究所_实验物理中心_期刊论文
中国科学院高能物理研究所_实验物理中心
中国科学院高能物理研究所_粒子天体物理中心
作者单位中国科学院高能物理研究所
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Shi F,Xue ST,Heng YK,et al. Performance test of fine-mesh PMT in strong magnetic field[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2004,28(10):1104-1108.
APA 石峰.,薛生田.,衡月昆.,赵小健.,舒乐.,...&Sun, ZJ.(2004).Performance test of fine-mesh PMT in strong magnetic field.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,28(10),1104-1108.
MLA 石峰,et al."Performance test of fine-mesh PMT in strong magnetic field".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 28.10(2004):1104-1108.
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