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arXiv physics/0410004physics.ins-det
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低压下纯异丁烷单丝气室的气体增益

Gas gain on single wire chambers filled with pure isobutane at low pressure

Yu. I. Davydov, R. Openshaw, V. Selivanov, G. Sheffer

摘要:

已在12-92托的压力范围内测量了填充有异丁烷的单线室的气体增益,所述单线室具有单元横截面12 × 12 mm和线直径15、25、50和100 $μ$ m。与大气压下的经验相反,在非常低的压力下,如最近所示,在相同的施加高压下,粗线上的气体增益高于细线上的气体增益。如果导线上的多次散射不是问题,则在极低压力下操作的导线室中应使用较大的导线直径。

英文摘要:

The gas gain of single-wire chambers filled with isobutane, with cell cross-section 12x12 mm and wire diameters of 15, 25, 50 and 100 $μ$m, has been measured at pressures ranging 12-92 Torr. Contrary to the experience at atmospheric pressure, at very low pressures the gas gain on thick wires is higher than that on thin wires at the same applied high voltage as was recently shown. Bigger wire diameters should be used in wire chambers operating at very low pressure if multiple scattering on wires is not an issue.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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