Ion‐sputtering atomic beam source for high‐resolution laser spectroscopy of refractory elements
作者:
M. Wakasugi,
W. G. Jin,
T. T. Inamura,
T. Murayama,
T. Wakui,
T. Kashiwabara,
H. Katsuragawa,
T. Ariga,
T. Ishizuka,
M. Koizumi,
I. Sugai,
期刊:
Review of Scientific Instruments
(AIP Available online 1993)
卷期:
Volume 64,
issue 12
页码: 3487-3491
ISSN:0034-6748
年代: 1993
DOI:10.1063/1.1144457
出版商: AIP
数据来源: AIP
摘要:
A high‐resolution laser spectroscopy system for refractory elements with an argon‐ion‐ sputtering atomic beam source was constructed, and it has been demonstrated that the sputtering method is extremely useful as an atomic beam source for high‐resolution laser spectroscopy to measure hyperfine structures and isotope shifts for refractory elements, such as Hf, Ta, and W. This source produced intense neutral atomic beams of more than 1010atoms/s for these elements, and the yield was easily controlled by adjusting the argon‐ion current and the acceleration voltage. Resonance linewidths were 32, 66, and 48 MHz for Hf, Ta, and W, respectively, which are sufficient to measure the hyperfine structures and the isotope shifts in optical transitions. With this system, the signal‐to‐noise ratio reached more than 106. In addition, the temperature of the sputtered atoms found was rather low compared to the kinetic energy given to the atoms.
点击下载:
PDF
(601KB)
返 回