Coulomb explosion of BeO− molecular ions – Revisited

L. K. Fifield; M. Suter; M. B. Froehlich; D. Koll; S. Pavetich; Z. Slavkovská; S. G. Tims; A. Wallner

doi:10.1016/j.nimb.2023.03.006

Coulomb explosion of BeO⁻ molecular ions – Revisited

L. K. Fifield^*, M. Suter, M. B. Froehlich, D. Koll, S. Pavetich, Z. Slavkovská, S. G. Tims, A. Wallner

^*Corresponding author for this work

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

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Abstract

Accelerator mass spectrometry (AMS) measurements of ¹⁰Be almost invariably utilize the BeO^- molecular negative ion. Molecular ions experience the process of ‘Coulomb explosion’ when dissociated by a stripper in the high-voltage terminal of a tandem accelerator, resulting in energy and angular spread of the subsequently-accelerated positive ions. In this paper, the phenomenon is studied in detail for both foil and gas stripping of BeO, using the 14UD pelletron accelerator at the Australian National University operating at 8.5 MV. In a companion paper by Suter et al. [1], a model is developed to interpret, inter alia, these results.

Original language	English
Pages (from-to)	205-211
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	538
DOIs	https://doi.org/10.1016/j.nimb.2023.03.006
Publication status	Published - May 2023

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title = "Coulomb explosion of BeO− molecular ions – Revisited",

abstract = "Accelerator mass spectrometry (AMS) measurements of 10Be almost invariably utilize the BeO- molecular negative ion. Molecular ions experience the process of {\textquoteleft}Coulomb explosion{\textquoteright} when dissociated by a stripper in the high-voltage terminal of a tandem accelerator, resulting in energy and angular spread of the subsequently-accelerated positive ions. In this paper, the phenomenon is studied in detail for both foil and gas stripping of BeO, using the 14UD pelletron accelerator at the Australian National University operating at 8.5 MV. In a companion paper by Suter et al. [1], a model is developed to interpret, inter alia, these results.",

keywords = "AMS, BeO molecular ions, Beryllium-10, Coulomb explosion, Foil and gas stripping",

author = "Fifield, {L. K.} and M. Suter and Froehlich, {M. B.} and D. Koll and S. Pavetich and Z. Slavkovsk{\'a} and Tims, {S. G.} and A. Wallner",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = may,

doi = "10.1016/j.nimb.2023.03.006",

language = "English",

volume = "538",

pages = "205--211",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

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TY - JOUR

T1 - Coulomb explosion of BeO− molecular ions – Revisited

AU - Fifield, L. K.

AU - Suter, M.

AU - Froehlich, M. B.

AU - Koll, D.

AU - Pavetich, S.

AU - Slavkovská, Z.

AU - Tims, S. G.

AU - Wallner, A.

PY - 2023/5

Y1 - 2023/5

N2 - Accelerator mass spectrometry (AMS) measurements of 10Be almost invariably utilize the BeO- molecular negative ion. Molecular ions experience the process of ‘Coulomb explosion’ when dissociated by a stripper in the high-voltage terminal of a tandem accelerator, resulting in energy and angular spread of the subsequently-accelerated positive ions. In this paper, the phenomenon is studied in detail for both foil and gas stripping of BeO, using the 14UD pelletron accelerator at the Australian National University operating at 8.5 MV. In a companion paper by Suter et al. [1], a model is developed to interpret, inter alia, these results.

AB - Accelerator mass spectrometry (AMS) measurements of 10Be almost invariably utilize the BeO- molecular negative ion. Molecular ions experience the process of ‘Coulomb explosion’ when dissociated by a stripper in the high-voltage terminal of a tandem accelerator, resulting in energy and angular spread of the subsequently-accelerated positive ions. In this paper, the phenomenon is studied in detail for both foil and gas stripping of BeO, using the 14UD pelletron accelerator at the Australian National University operating at 8.5 MV. In a companion paper by Suter et al. [1], a model is developed to interpret, inter alia, these results.

KW - AMS

KW - BeO molecular ions

KW - Beryllium-10

KW - Coulomb explosion

KW - Foil and gas stripping

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U2 - 10.1016/j.nimb.2023.03.006

DO - 10.1016/j.nimb.2023.03.006

M3 - Article

SN - 0168-583X

VL - 538

SP - 205

EP - 211

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Coulomb explosion of BeO⁻ molecular ions – Revisited

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