DIRECT DETERMINATION OF THE TEMPERATURE AND DENSITY OF GASEOUS ATOMIC-HYDROGEN AT LOW-TEMPERATURE BY ATOMIC-BEAM TECHNIQUES

被引：11

作者：

SILVERA, IF

WALRAVEN, JTM

机构：

[1] Natuurkundig Laboratorium, Universiteit van Amsterdam

来源：

PHYSICS LETTERS A | 1979年 / 74卷 / 3-4期

关键词：

D O I：

10.1016/0375-9601(79)90768-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the translational temperature of atomic hydrogen gas (H) in a cryogenic environment at T ≈ K. An atomic beam is formed; time of flight measurements are consistent with a maxwellian velocity distribution of 8.5 K. The flux of low velocity atoms is increased by ≈ 20 over that of the same source operated at room temperature. The low temperature density is estimated to be 3.4 × 1013 H/cm3. General considerations for transporting and cooling of a gas of H are given. © 1979.

引用

页码：193 / 196

页数：4

共 20 条

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