Development of a spatial heterodyne spectrometer for time-resolved measurement of Zeeman effect on Hα emission line spectra

IF 2.3 2区物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Materials and Energy Pub Date : 2024-12-16 DOI:10.1016/j.nme.2024.101850

M. Xu , T. Shikama , M. Murakumo , S. Kado , M. Hasuo

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引用次数: 0

Abstract

A spatial heterodyne spectrometer (SHS) for measuring the Zeeman effect on Hα emission line spectra was developed using an optimization design method that maximizes the product of the resolving power and etendue. Modified data processing steps were also used to improve the signal-to-noise (S/N) ratio of the spectra. The S/N ratio of the developed SHS was evaluated by measuring Ne I emission line spectra and compared with that of a Czerny–Turner spectrometer (CT) at a comparable resolving power. The results indicated that the S/N ratios of SHS spectra were approximately four times higher than those of CT spectra over an exposure time range of 0.5−80 ms. Additionally, Hα emission line spectra with the Zeeman effect were measured at magnetic field strength of 1−3 T comparable to that in a confinement device. It was confirmed that the theoretical instrumental function with a measured instrumental width can be used to analyze the line shape of multiple emission splitting lines.

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来源期刊

Nuclear Materials and Energy Materials Science-Materials Science (miscellaneous)

CiteScore

3.70

自引率

15.40%

发文量

175

审稿时长

20 weeks

期刊介绍： The open-access journal Nuclear Materials and Energy is devoted to the growing field of research for material application in the production of nuclear energy. Nuclear Materials and Energy publishes original research articles of up to 6 pages in length.