On the correlation between electron mobility, free-ion yield, and electron thermalization distance in nonpolar dielectric liquids
On the correlation between electron mobility, free-ion yield, and electron thermalization distance in nonpolar dielectric liquids
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非极性介电液体中电子迁移率、自由离子产率和电子热化距离之间的相关性
DOI：
10.1139/v93-042
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发表时间：
1993
影响因子：
1.1
通讯作者：
I. Billard
中科院分区：
文献类型：
--
作者：
J. Jay;T. Goulet;I. Billard
研究了 52 种不同的纯非极性介电液体的热电子迁移率 μe、零外加电场下辐射引起的自由离子产率 Gfi 和二次电子最可能热化距离 b 之间的相关性，这些液体的数据已在文献中报道。结果表明，在 μe > 10−1 cm2 V−1 s−1 的液体中，Gfi 随 μe 的变化可以很好地表示为 n ≈ 0.31 类型的关系。 Gfi 和 μe 之间的联系可以通过乘积 esb 来描述，其中 es 是中间液体的静态介电常数。特别是，1/esb 显示与 μe 和 Gfi 相关。对这些相关性的分析使我们能够估计室温介电液体中可以达到的 μe 上限，从应用于液体电离探测器的角度来看，这是至关重要的信息。
The correlation between the thermal electron mobility, μe, the radiation-induced free-ion yield Gfi at zero applied electric field, and the most probable thermalization distance b of secondary electrons, is examined for 52 different pure non-polar dielectric liquids for which data have been reported in the literature. It is shown that, in liquids for which μe > 10−1 cm2 V−1 s−1, the variation of Gfi with μe is well represented by a relation of the type where n ≈ 0.31. The connection between Gfi and μe can be described through the product esb, where es is the static dielectric constant of the intervening liquid. In particular, 1/esb is shown to correlate with both μe and Gfi. Analysis of these correlations allows us to estimate an upper limit of μe that can be attained in a room-temperature dielectric liquid, information of utmost importance from the point of view of application to liquid ionization detectors.