Time‐Dependent Sensitivity of a Sensor Based on a Top‐Hat Electrostatic Analyzer and Microchannel Plate Detector.
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| Title: | Time‐Dependent Sensitivity of a Sensor Based on a Top‐Hat Electrostatic Analyzer and Microchannel Plate Detector. |
|---|---|
| Authors: | Allegrini, F.1,2 (AUTHOR) fallegrini@swri.edu, Ebert, R.1,2 (AUTHOR), Kurth, W. S.3 (AUTHOR), Valek, P.1 (AUTHOR), Wilson, R. J.4 (AUTHOR) |
| Source: | Journal of Geophysical Research. Space Physics. Nov2025, Vol. 130 Issue 11, p1-12. 12p. |
| Subject Terms: | Electron density, Microchannel plates, Space plasmas, Sensitivity analysis, Electrostatic analyzers, Calibration |
| Abstract: | Some space plasma parameters, such as electron density, can be obtained from the plasma wave spectrum, such as plasma oscillations, and from the phase space density of the electrons. Two critical advantages of having such multiple independent measurements of the same quantity are that they provide a validation of the measurements and a cross‐calibration between techniques. The electron phase space density is typically obtained using an energy analyzer and a detector, whose detection efficiency usually changes over time. Here, we use the Jovian Auroral Distribution Experiment (JADE) electron sensors to characterize the time dependence of the sensors' sensitivity. The derived sensitivity enables consistency of the derived fluxes from the different sensors. It enables the combining of data sets from independent measurements and thus extends the knowledge of many measured quantities. The derived detection efficiency is a physics‐based, semi‐empirical model that can be applied to other detectors (microchannel plates and channel electron multipliers). Key Points: We cross‐calibrate electron plasma sensors using an independent electron density measurementWe provide a physics‐based, semi‐empirical model for the electron detection efficiency with microchannel platesWe characterize the time‐dependence of the sensitivity of the Jovian Auroral Distributions Experiment (JADE) electron sensors [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 189524704 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Time‐Dependent Sensitivity of a Sensor Based on a Top‐Hat Electrostatic Analyzer and Microchannel Plate Detector. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Allegrini%2C+F%2E%22">Allegrini, F.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> fallegrini@swri.edu</i><br /><searchLink fieldCode="AR" term="%22Ebert%2C+R%2E%22">Ebert, R.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kurth%2C+W%2E+S%2E%22">Kurth, W. S.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Valek%2C+P%2E%22">Valek, P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wilson%2C+R%2E+J%2E%22">Wilson, R. J.</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Geophysical+Research%2E+Space+Physics%22">Journal of Geophysical Research. Space Physics</searchLink>. Nov2025, Vol. 130 Issue 11, p1-12. 12p. – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Electron+density%22">Electron density</searchLink><br /><searchLink fieldCode="DE" term="%22Microchannel+plates%22">Microchannel plates</searchLink><br /><searchLink fieldCode="DE" term="%22Space+plasmas%22">Space plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Electrostatic+analyzers%22">Electrostatic analyzers</searchLink><br /><searchLink fieldCode="DE" term="%22Calibration%22">Calibration</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Some space plasma parameters, such as electron density, can be obtained from the plasma wave spectrum, such as plasma oscillations, and from the phase space density of the electrons. Two critical advantages of having such multiple independent measurements of the same quantity are that they provide a validation of the measurements and a cross‐calibration between techniques. The electron phase space density is typically obtained using an energy analyzer and a detector, whose detection efficiency usually changes over time. Here, we use the Jovian Auroral Distribution Experiment (JADE) electron sensors to characterize the time dependence of the sensors' sensitivity. The derived sensitivity enables consistency of the derived fluxes from the different sensors. It enables the combining of data sets from independent measurements and thus extends the knowledge of many measured quantities. The derived detection efficiency is a physics‐based, semi‐empirical model that can be applied to other detectors (microchannel plates and channel electron multipliers). Key Points: We cross‐calibrate electron plasma sensors using an independent electron density measurementWe provide a physics‐based, semi‐empirical model for the electron detection efficiency with microchannel platesWe characterize the time‐dependence of the sensitivity of the Jovian Auroral Distributions Experiment (JADE) electron sensors [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Geophysical Research. Space Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1029/2025JA034490 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1 Subjects: – SubjectFull: Electron density Type: general – SubjectFull: Microchannel plates Type: general – SubjectFull: Space plasmas Type: general – SubjectFull: Sensitivity analysis Type: general – SubjectFull: Electrostatic analyzers Type: general – SubjectFull: Calibration Type: general Titles: – TitleFull: Time‐Dependent Sensitivity of a Sensor Based on a Top‐Hat Electrostatic Analyzer and Microchannel Plate Detector. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Allegrini, F. – PersonEntity: Name: NameFull: Ebert, R. – PersonEntity: Name: NameFull: Kurth, W. S. – PersonEntity: Name: NameFull: Valek, P. – PersonEntity: Name: NameFull: Wilson, R. J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 21699380 Numbering: – Type: volume Value: 130 – Type: issue Value: 11 Titles: – TitleFull: Journal of Geophysical Research. Space Physics Type: main |
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