Resonance ionization spectroscopy of neodymium for determining a highly efficient two-step ionization scheme

Miyabe, Masabumi ; Iwata, Yoshihiro ; Tomita, Hideki*; Morita, Masato*; Sakamoto, Tetsuo*

Two-color two-step resonance ionization spectroscopy of neodymium (Nd) was performed to identify more than 120 even-parity autoionizing levels and their candidate J-values. The analysis of the observed autoionizing Rydberg series yielded a value of 44560.11 (43) $_{rm stat}$ (2) $_{rm sys}$ cm $^{-1}$ as a more accurate ionization potential of Nd. The saturation method was used to measure the transition cross-sections for some intense ionization transitions. From the measured cross-sections, the ionization efficiencies of some two-step ionization schemes were evaluated using the scheme cross-section formula to obtain several promising schemes.

Language	:	English
Journal	:	Spectrochimica Acta, Part B
Volume	:	221
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Pages	:	p.107036_1 - 107036_12
Publication Year/Month	:	2024/11
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Paper URL	:	https://doi.org/10.1016/j.sab.2024.107036
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Keywords	:	Fukushima Daiichi Nuclear Power Station Accident; 福島第一原子力発電所事故; 同位体マイクロイメージング; ネオジム原子; 共鳴イオン化分光; イオン化ポテンシャル; 共鳴イオン化スキーム
Research Facility	:	ウラン濃縮研究棟;JRR-3実験利用棟(第2棟)
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InCites™	:	Percentile:74.80 Category:Spectroscopy
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Registration No. : AA20240378
JAEA Abstracts No. : 53001228
Paper Submission No. : 30260

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