Onset of space charge effects in liquid argon ionization chambers

B. Toggerson; A. Newcomer; J. Rutherfoord; R. B. Walker

doi:10.1016/j.nima.2009.07.013

Onset of space charge effects in liquid argon ionization chambers

B. Toggerson
, A. Newcomer
, J. Rutherfoord
, R. B. Walker

Physics

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

3 Scopus citations

Abstract

Using a thin-gap liquid argon ionization chamber and Strontium-90 beta sources we have measured ionization currents over a wide range of gap potentials. These precision "HV plateau curves" advance the understanding of liquid argon sampling calorimeter signals, particularly at high ionization rates. The order of magnitude differences in the activities of the beta sources allow us to estimate where the ionization chamber is driven into the space-charge dominated regime.

Original language	English (US)
Pages (from-to)	238-245
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	608
Issue number	2
DOIs	https://doi.org/10.1016/j.nima.2009.07.013
State	Published - Sep 11 2009

Keywords

Liquid argon calorimetry

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2009.07.013

Cite this

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title = "Onset of space charge effects in liquid argon ionization chambers",

abstract = "Using a thin-gap liquid argon ionization chamber and Strontium-90 beta sources we have measured ionization currents over a wide range of gap potentials. These precision {"}HV plateau curves{"} advance the understanding of liquid argon sampling calorimeter signals, particularly at high ionization rates. The order of magnitude differences in the activities of the beta sources allow us to estimate where the ionization chamber is driven into the space-charge dominated regime.",

keywords = "Liquid argon calorimetry",

author = "B. Toggerson and A. Newcomer and J. Rutherfoord and Walker, \{R. B.\}",

note = "Funding Information: We would like to thank Michael Shupe, Leif Shaver, Ron Norton, Michael Starr, Eleanor Kelly, Chris Oram, David Rahm, Dan Tompkins, and Neeru Sanghi for insights, inspiration, suggestions, and help with the apparatus and/or data taking. This work is supported by the Office of High Energy Physics of the U.S. Department of Energy as part of the U.S. ATLAS Research Program. ",

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doi = "10.1016/j.nima.2009.07.013",

language = "English (US)",

volume = "608",

pages = "238--245",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Onset of space charge effects in liquid argon ionization chambers

AU - Toggerson, B.

AU - Newcomer, A.

AU - Rutherfoord, J.

AU - Walker, R. B.

N1 - Funding Information: We would like to thank Michael Shupe, Leif Shaver, Ron Norton, Michael Starr, Eleanor Kelly, Chris Oram, David Rahm, Dan Tompkins, and Neeru Sanghi for insights, inspiration, suggestions, and help with the apparatus and/or data taking. This work is supported by the Office of High Energy Physics of the U.S. Department of Energy as part of the U.S. ATLAS Research Program.

PY - 2009/9/11

Y1 - 2009/9/11

N2 - Using a thin-gap liquid argon ionization chamber and Strontium-90 beta sources we have measured ionization currents over a wide range of gap potentials. These precision "HV plateau curves" advance the understanding of liquid argon sampling calorimeter signals, particularly at high ionization rates. The order of magnitude differences in the activities of the beta sources allow us to estimate where the ionization chamber is driven into the space-charge dominated regime.

AB - Using a thin-gap liquid argon ionization chamber and Strontium-90 beta sources we have measured ionization currents over a wide range of gap potentials. These precision "HV plateau curves" advance the understanding of liquid argon sampling calorimeter signals, particularly at high ionization rates. The order of magnitude differences in the activities of the beta sources allow us to estimate where the ionization chamber is driven into the space-charge dominated regime.

KW - Liquid argon calorimetry

UR - https://www.scopus.com/pages/publications/69249157378

UR - https://www.scopus.com/pages/publications/69249157378#tab=citedBy

U2 - 10.1016/j.nima.2009.07.013

DO - 10.1016/j.nima.2009.07.013

M3 - Article

AN - SCOPUS:69249157378

SN - 0168-9002

VL - 608

SP - 238

EP - 245

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 2

ER -

Onset of space charge effects in liquid argon ionization chambers

Abstract

Keywords

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