Nearly complete isobar suppression by photodetachment

被引：14

作者：

Andersson, P. ^{[1
]}

Lindahl, A. O. ^{[1
]}

Hanstorp, D. ^{[1
]}

Havener, C. C. ^{[2
]}

Liu, Yun ^{[3
]}

Liu, Yuan ^{[2
]}

机构：

[1] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[2] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[3] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 02期

基金：

瑞典研究理事会;

关键词：

atom-photon collisions; cobalt; electron detachment; ion beams; negative ions; particle traps; NEGATIVE-IONS; ACCELERATOR; LASERS;

D O I：

10.1063/1.3291104

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The efficiency of selective suppression of negative ions by photodetachment in a gas-filled radio frequency quadrupole ion cooler was investigated with a new detection method. A neodymium doped yttrium aluminum garnet laser beam at 1064 nm was used to remove Co(-) ions in the radio frequency quadrupole cooler and the remaining ions were then probed by photodetachment and neutral particle detection. More than 99.99% suppression of the Co(-) ions was observed. Under identical conditions, only 20% of a Ni(-) beam was suppressed. The results demonstrate that this isobar suppression technique can lead to nearly complete elimination of certain isobaric contaminants in negative ion beams, opening up new experimental possibilities in nuclear and atomic research and accelerator mass spectrometry.

引用

页数：3

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