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Abstract <p>A novel three-step excitation scheme for the ultra-trace analysis of <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="216_2025_6062_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{242}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>242</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Pu via resonance ionization mass spectrometry reported by Galindo-Uribarri et al. was investigated. Previously unknown optical isotope shifts for the second excitation and ionizing step for the plutonium isotopes <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="216_2025_6062_Article_IEq2.gif" Format="GIF" Height="12" Rendition="HTML" Resolution="72" Type="Linedraw" Width="67" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{238-240,244}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mrow> <mn>238</mn> <mo>-</mo> <mn>240</mn> <mo>,</mo> <mn>244</mn> </mrow> </mmultiscripts> </math></EquationSource> </InlineEquation>Pu were measured. Saturation powers were recorded, and the efficiency was compared via electrodepositions of <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="216_2025_6062_Article_IEq3.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{238}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>238</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Pu with reference to the established scheme by Grüning et al. routinely applied on our setup. Both schemes share the same first excitation step and use a Rydberg state as ionizing step. The resonances for <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="216_2025_6062_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{242}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>242</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Pu published by Galindo-Uribarri et al. were confirmed.</p> Graphical abstract <p></p>

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Investigating a novel three-step excitation scheme for the ultra-trace analysis of plutonium via RIMS

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  • 发表日期：

    2025年8月23日

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  • Felix Berg,
  • Tobias Reich

摘要

Abstract

A novel three-step excitation scheme for the ultra-trace analysis of \(^{242}\) 242 Pu via resonance ionization mass spectrometry reported by Galindo-Uribarri et al. was investigated. Previously unknown optical isotope shifts for the second excitation and ionizing step for the plutonium isotopes \(^{238-240,244}\) 238 - 240 , 244 Pu were measured. Saturation powers were recorded, and the efficiency was compared via electrodepositions of \(^{238}\) 238 Pu with reference to the established scheme by Grüning et al. routinely applied on our setup. Both schemes share the same first excitation step and use a Rydberg state as ionizing step. The resonances for \(^{242}\) 242 Pu published by Galindo-Uribarri et al. were confirmed.

Graphical abstract