Vacuum requirements for Penning trap mass spectrometry with highly charged ions

Erich Leistenschneider; A. A. Kwiatkowski; J. Dilling

doi:10.1016/j.nimb.2019.03.047

Vacuum requirements for Penning trap mass spectrometry with highly charged ions

Erich Leistenschneider
, A. A. Kwiatkowski
, J. Dilling

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

2 Scopus citations

Abstract

Experimental investigations employing highly charged ions (HCI) typically require very strict vacuum quality. In Penning trap mass spectrometry (PTMS), HCI can significantly improve the precision and resolution of mass measurements, but they are also subject to charge-exchange reactions with neutral gas particles, which may hamper the quality of the measurement. In this study, we employed a simple method to determine that the maximum pressure levels required for an undisturbed PTMS measurement of HCI is on the order of 10^-11 mbar. We also evaluate the residual gas pressure in the Penning trap mass spectrometer at TITAN facility by measuring the rate of charge-exchange reactions with HCI, revealing that the trap's vacuum must be improved in about two orders of magnitude to reach the desired level.

Original language	English
Pages (from-to)	496-498
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	463
DOIs	https://doi.org/10.1016/j.nimb.2019.03.047
State	Published - Jan 15 2020
Externally published	Yes

Keywords

HCI
Mass spectrometry
Penning trap
Radioactive ion beams
Vacuum

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10.1016/j.nimb.2019.03.047

Cite this

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title = "Vacuum requirements for Penning trap mass spectrometry with highly charged ions",

abstract = "Experimental investigations employing highly charged ions (HCI) typically require very strict vacuum quality. In Penning trap mass spectrometry (PTMS), HCI can significantly improve the precision and resolution of mass measurements, but they are also subject to charge-exchange reactions with neutral gas particles, which may hamper the quality of the measurement. In this study, we employed a simple method to determine that the maximum pressure levels required for an undisturbed PTMS measurement of HCI is on the order of 10-11 mbar. We also evaluate the residual gas pressure in the Penning trap mass spectrometer at TITAN facility by measuring the rate of charge-exchange reactions with HCI, revealing that the trap's vacuum must be improved in about two orders of magnitude to reach the desired level.",

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T1 - Vacuum requirements for Penning trap mass spectrometry with highly charged ions

AU - Leistenschneider, Erich

AU - Kwiatkowski, A. A.

AU - Dilling, J.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - Experimental investigations employing highly charged ions (HCI) typically require very strict vacuum quality. In Penning trap mass spectrometry (PTMS), HCI can significantly improve the precision and resolution of mass measurements, but they are also subject to charge-exchange reactions with neutral gas particles, which may hamper the quality of the measurement. In this study, we employed a simple method to determine that the maximum pressure levels required for an undisturbed PTMS measurement of HCI is on the order of 10-11 mbar. We also evaluate the residual gas pressure in the Penning trap mass spectrometer at TITAN facility by measuring the rate of charge-exchange reactions with HCI, revealing that the trap's vacuum must be improved in about two orders of magnitude to reach the desired level.

AB - Experimental investigations employing highly charged ions (HCI) typically require very strict vacuum quality. In Penning trap mass spectrometry (PTMS), HCI can significantly improve the precision and resolution of mass measurements, but they are also subject to charge-exchange reactions with neutral gas particles, which may hamper the quality of the measurement. In this study, we employed a simple method to determine that the maximum pressure levels required for an undisturbed PTMS measurement of HCI is on the order of 10-11 mbar. We also evaluate the residual gas pressure in the Penning trap mass spectrometer at TITAN facility by measuring the rate of charge-exchange reactions with HCI, revealing that the trap's vacuum must be improved in about two orders of magnitude to reach the desired level.

KW - HCI

KW - Mass spectrometry

KW - Penning trap

KW - Radioactive ion beams

KW - Vacuum

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DO - 10.1016/j.nimb.2019.03.047

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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 -

Vacuum requirements for Penning trap mass spectrometry with highly charged ions

Abstract

Keywords

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