Reduction of contaminants originating from primary beam by improving the beam stoppers in GARIS-II

Kimura, Sota*; Ito, Yuta ; 5 of others*

Two independent beam stoppers have been developed for improving the beam separation of the gas-filled recoil ion separator GARIS-II. Performance of these supplemental beam stoppers was investigated by using the $^{208}$ Pb( $^{18}$ O,3n) $^{223}$ Th reaction. A160-fold enhancement of the signal-to-noise ratio at the GARIS-II focal plane was observed.

Language	:	English
Journal	:	Nuclear Instruments and Methods in Physics Research A
Volume	:	992
Number	:
Pages	:	p.164996_1 - 164996_4
Publication Year/Month	:	2021/03
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Paper URL	:	https://doi.org/10.1016/j.nima.2020.164996
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	no keyword
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InCites™	:	Percentile:24.88 Category:Instruments & Instrumentation
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Registration No. : AA20220814
JAEA Abstracts No. :
Paper Submission No. : 29293

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