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Korsch W, Broering M, Timsina A, Leung KKH, Abney J, Budker D, Filippone BW, He J, Kandu S, McCrea M, Roy M, Swank C, Yao W. Electric charging effects on insulating surfaces in cryogenic liquids. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2024; 95:043101. [PMID: 38557888 DOI: 10.1063/5.0195101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
This paper presents a new technique to study the adsorption and desorption of ions and electrons on insulating surfaces in the presence of strong electric fields in cryoliquids. The experimental design consists of a compact cryostat coupled with a sensitive electro-optical Kerr device to monitor the stability of the electric fields. The behavior of nitrogen and helium ions on a poly(methyl methacrylate) (PMMA) surface was compared to a PMMA surface coated with a mixture of deuterated polystyrene and deuterated polybutadiene. Ion accumulation and removal on these surfaces were unambiguously observed. Within the precision of the data, both surfaces behave similarly for the physisorbed ions. The setup was also used to measure the (quasi-)static dielectric constant of PMMA at T ≈ 70 K. The impact of the ion adsorption on the search for a neutron permanent electric dipole moment in a cryogenic environment, such as the nEDM@SNS experiment, is discussed.
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Affiliation(s)
- Wolfgang Korsch
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Mark Broering
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Ashok Timsina
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Kent K H Leung
- Department of Physics and Astronomy, Montclair State University, Montclair, New Jersey 07043, USA
| | - Joshua Abney
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Dmitry Budker
- Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
- Helmholtz-Institut, GSI Helmholtzzentrum für Schwerionenforschung, 55128 Mainz, Germany
- Department of Physics, University of California, Berkeley, California 94720-7300, USA
| | - Bradley W Filippone
- Lauritsen Laboratory, California Institute of Technology, Pasadena, California 91125, USA
| | - Jiachen He
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Suman Kandu
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Mark McCrea
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
- Department of Physics, University of Winnipeg, Winnipeg, Manitoba R3B 2E9, Canada
| | - Murchhana Roy
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Christopher Swank
- Lauritsen Laboratory, California Institute of Technology, Pasadena, California 91125, USA
| | - Weijun Yao
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
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Abstract
A review is presented of the history of radiation detection instrumentation. Specific radiation detection systems that are discussed include the human senses, photography, calorimetry, color dosimetry, ion chambers, electrometers, electroscopes, proportional counters, Geiger Mueller counters, scalers and rate meters, barium platinocyanide, scintillation counters, semiconductor detectors, radiophotoluminescent dosimeters, thermoluminescent dosimeters, optically stimulated luminescent dosimeters, direct ion storage, electrets, cloud chambers, bubble chambers, and bubble dosimeters. Given the broad scope of this review, the coverage is limited to a few key events in the development of a given detection system and some relevant operating principles. The occasional anecdote is included for interest.
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Affiliation(s)
- Paul W Frame
- PTP MS 11, Oak Ridge Associated Universities, PO Box 117, Oak Ridge, TN 37831-0117, USA.
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Abstract
A review is presented of the history of radiation detection instrumentation. Specific radiation detection systems that are discussed include the human senses, photography, calorimetry, color dosimetry, ion chambers, electrometers, electroscopes, proportional counters, Geiger Mueller counters, scalers and rate meters, barium platinocyanide, scintillation counters, semiconductor detectors, radiophotoluminescent dosimeters, thermoluminescent dosimeters, optically stimulated luminescent dosimeters, direct ion storage, electrets, cloud chambers, bubble chambers, and bubble dosimeters. Given the broad scope of this review, the coverage is limited to a few key events in the development of a given detection system and some relevant operating principles. The occasional anecdote is included for interest.
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Affiliation(s)
- Paul W Frame
- PTP MS 11, Oak Ridge Associated Universities, PO Box 117, Oak Ridge, TN 37831-0117, USA.
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Berset J, Burns M, Harigel G, Lindsay J, Linser G, Schenk F. Simultaneous operation of a liquid argon detector as bubble chamber and calorimeter. ACTA ACUST UNITED AC 1982. [DOI: 10.1016/0167-5087(82)90622-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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