Atomic-structure investigations of neutral einsteinium by laser resonance ionization

Felix Weber; Thomas E. Albrecht-Schönzart; Michael Block; Premaditya Chhetri; Christoph E. Düllmann; Julie G. Ezold; Vadim Gadelshin; Alyssa N. Gaiser; Francesca Giacoppo; Reinhard Heinke; Tom Kieck; Nina Kneip; Mustapha Laatiaoui; Christoph Mokry; Steven Nothhelfer; Sebastian Raeder; Jöorg Runke; Fabian Schneider; Joseph M. Sperling; Dominik Studer; Petra Thörle-Pospiech; Norbert Trautmann; Klaus Wendt

doi:10.1103/PhysRevResearch.4.043053

Atomic-structure investigations of neutral einsteinium by laser resonance ionization

Felix Weber, Thomas E. Albrecht-Schönzart, Michael Block, Premaditya Chhetri, Christoph E. Düllmann, Julie G. Ezold, Vadim Gadelshin, Alyssa N. Gaiser, Francesca Giacoppo, Reinhard Heinke, Tom Kieck, Nina Kneip, Mustapha Laatiaoui, Christoph Mokry, Steven Nothhelfer, Sebastian Raeder, Jöorg Runke, Fabian Schneider, Joseph M. Sperling, Dominik StuderPetra Thörle-Pospiech, Norbert Trautmann, Klaus Wendt

Radioisotope Science and Technology Divi

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Excited atomic states of neutral einsteinium were investigated by resonant laser ionization using 10 pg (2×1010 atoms) of Es254. Ten transitions from the 5f117s2I15/2o4 ground state to even-parity states were investigated in detail, via studies of lifetimes and further excitation steps into higher-lying odd-parity states below and above the first ionization potential. This led to the identification of 37 previously unknown odd-parity energy levels in the region between 37000 and 42500cm-1 and a number of autoionizing states, which ensure a high ion yield in resonant ionization. Rydberg states were identified and the corresponding Rydberg series converging either to the ionic ground or an excited state were analyzed to determine the first ionization potential of einsteinium to a value of EIP=51364.58(14)stat(50)syscm-1, improving the previous result by a factor of four.

Original language	English
Article number	043053
Journal	Physical Review Research
Volume	4
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevResearch.4.043053
State	Published - Oct 2022

Funding

This research was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Heavy Elements Chemistry Program, under Award No. DE-FG02-13ER16414. The isotope used in this research was supplied by the U.S. DOE Isotope Program, managed by the Office of Science. This work has been supported by the Bundesministerium für Bildung und Forschung (BMBF, Germany) under Grant No. 05P18UMCIA. This project has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 861198-LISA-H2020-MSCA-ITN-2019.

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10.1103/PhysRevResearch.4.043053

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Weber, F., Albrecht-Schönzart, T. E., Block, M., Chhetri, P., Düllmann, C. E., Ezold, J. G., Gadelshin, V., Gaiser, A. N., Giacoppo, F., Heinke, R., Kieck, T., Kneip, N., Laatiaoui, M., Mokry, C., Nothhelfer, S., Raeder, S., Runke, J., Schneider, F., Sperling, J. M., ... Wendt, K. (2022). Atomic-structure investigations of neutral einsteinium by laser resonance ionization. Physical Review Research, 4(4), Article 043053. https://doi.org/10.1103/PhysRevResearch.4.043053

@article{d558363007964d40ba6235c660ba19ac,

title = "Atomic-structure investigations of neutral einsteinium by laser resonance ionization",

abstract = "Excited atomic states of neutral einsteinium were investigated by resonant laser ionization using 10 pg (2×1010 atoms) of Es254. Ten transitions from the 5f117s2I15/2o4 ground state to even-parity states were investigated in detail, via studies of lifetimes and further excitation steps into higher-lying odd-parity states below and above the first ionization potential. This led to the identification of 37 previously unknown odd-parity energy levels in the region between 37000 and 42500cm-1 and a number of autoionizing states, which ensure a high ion yield in resonant ionization. Rydberg states were identified and the corresponding Rydberg series converging either to the ionic ground or an excited state were analyzed to determine the first ionization potential of einsteinium to a value of EIP=51364.58(14)stat(50)syscm-1, improving the previous result by a factor of four.",

author = "Felix Weber and Albrecht-Sch{\"o}nzart, {Thomas E.} and Michael Block and Premaditya Chhetri and D{\"u}llmann, {Christoph E.} and Ezold, {Julie G.} and Vadim Gadelshin and Gaiser, {Alyssa N.} and Francesca Giacoppo and Reinhard Heinke and Tom Kieck and Nina Kneip and Mustapha Laatiaoui and Christoph Mokry and Steven Nothhelfer and Sebastian Raeder and J{\"o}org Runke and Fabian Schneider and Sperling, {Joseph M.} and Dominik Studer and Petra Th{\"o}rle-Pospiech and Norbert Trautmann and Klaus Wendt",

note = "Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

month = oct,

doi = "10.1103/PhysRevResearch.4.043053",

language = "English",

volume = "4",

journal = "Physical Review Research",

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Weber, F, Albrecht-Schönzart, TE, Block, M, Chhetri, P, Düllmann, CE, Ezold, JG, Gadelshin, V, Gaiser, AN, Giacoppo, F, Heinke, R, Kieck, T, Kneip, N, Laatiaoui, M, Mokry, C, Nothhelfer, S, Raeder, S, Runke, J, Schneider, F, Sperling, JM, Studer, D, Thörle-Pospiech, P, Trautmann, N & Wendt, K 2022, 'Atomic-structure investigations of neutral einsteinium by laser resonance ionization', Physical Review Research, vol. 4, no. 4, 043053. https://doi.org/10.1103/PhysRevResearch.4.043053

TY - JOUR

T1 - Atomic-structure investigations of neutral einsteinium by laser resonance ionization

AU - Weber, Felix

AU - Albrecht-Schönzart, Thomas E.

AU - Block, Michael

AU - Chhetri, Premaditya

AU - Düllmann, Christoph E.

AU - Ezold, Julie G.

AU - Gadelshin, Vadim

AU - Gaiser, Alyssa N.

AU - Giacoppo, Francesca

AU - Heinke, Reinhard

AU - Kieck, Tom

AU - Kneip, Nina

AU - Laatiaoui, Mustapha

AU - Mokry, Christoph

AU - Nothhelfer, Steven

AU - Raeder, Sebastian

AU - Runke, Jöorg

AU - Schneider, Fabian

AU - Sperling, Joseph M.

AU - Studer, Dominik

AU - Thörle-Pospiech, Petra

AU - Trautmann, Norbert

AU - Wendt, Klaus

PY - 2022/10

Y1 - 2022/10

N2 - Excited atomic states of neutral einsteinium were investigated by resonant laser ionization using 10 pg (2×1010 atoms) of Es254. Ten transitions from the 5f117s2I15/2o4 ground state to even-parity states were investigated in detail, via studies of lifetimes and further excitation steps into higher-lying odd-parity states below and above the first ionization potential. This led to the identification of 37 previously unknown odd-parity energy levels in the region between 37000 and 42500cm-1 and a number of autoionizing states, which ensure a high ion yield in resonant ionization. Rydberg states were identified and the corresponding Rydberg series converging either to the ionic ground or an excited state were analyzed to determine the first ionization potential of einsteinium to a value of EIP=51364.58(14)stat(50)syscm-1, improving the previous result by a factor of four.

AB - Excited atomic states of neutral einsteinium were investigated by resonant laser ionization using 10 pg (2×1010 atoms) of Es254. Ten transitions from the 5f117s2I15/2o4 ground state to even-parity states were investigated in detail, via studies of lifetimes and further excitation steps into higher-lying odd-parity states below and above the first ionization potential. This led to the identification of 37 previously unknown odd-parity energy levels in the region between 37000 and 42500cm-1 and a number of autoionizing states, which ensure a high ion yield in resonant ionization. Rydberg states were identified and the corresponding Rydberg series converging either to the ionic ground or an excited state were analyzed to determine the first ionization potential of einsteinium to a value of EIP=51364.58(14)stat(50)syscm-1, improving the previous result by a factor of four.

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U2 - 10.1103/PhysRevResearch.4.043053

DO - 10.1103/PhysRevResearch.4.043053

M3 - Article

AN - SCOPUS:85141561039

SN - 2643-1564

VL - 4

JO - Physical Review Research

JF - Physical Review Research

IS - 4

M1 - 043053

ER -

Atomic-structure investigations of neutral einsteinium by laser resonance ionization

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