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Depth calibration of double-sided strip germanium detectors for the compton spectrometer and imager satellite.

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Title: Depth calibration of double-sided strip germanium detectors for the compton spectrometer and imager satellite.
Authors: Rogers, Field R.1 (AUTHOR) fieldr@berkeley.edu, Pike, Sean N.2 (AUTHOR), Alnussirat, Samer1 (AUTHOR), Anthony-Petersen, Robin1 (AUTHOR), Boggs, Steven E.2 (AUTHOR), Hagemann, Felix1 (AUTHOR), Haight, Sophia E.2 (AUTHOR), Joens, Alyson1 (AUTHOR), Kierans, Carolyn3 (AUTHOR), Lowell, Alexander1 (AUTHOR), Mochizuki, Brent1 (AUTHOR), Shih, Albert Y.3 (AUTHOR), Sleator, Clio4 (AUTHOR), Tomsick, John A.1 (AUTHOR), Zoglauer, Andreas1 (AUTHOR)
Source: Nuclear Instruments & Methods in Physics Research Section A. Jun2026, Vol. 1086, pN.PAG-N.PAG. 1p.
Subjects: Germanium detectors, Calibration, Spatial resolution, Simulation software, Three-dimensional imaging, Application-specific integrated circuits, Compton imaging
Abstract: Double-sided strip high-purity germanium detectors with three-dimensional position reconstruction capability have been developed over three decades, with space-based applications in high-energy astrophysics and heliophysics. Position resolution in three dimensions is key to reconstruction of Compton scattering events, including for the upcoming Compton Spectrometer and Imager (COSI) satellite mission. Two-dimensional position reconstruction is enabled by segmentation of the two detector faces into orthogonal strip contacts, enabling a pixelized analysis. The depth of an interaction cannot be measured directly but must be inferred from the charge collection time difference between the two faces of the detector. Here, we demonstrate for the first time the depth calibration of a detector with the COSI satellite geometry read out using an application specific integrated circuit (ASIC) developed for the COSI mission. In this work, we map collection time difference to depth using the Julia-based simulation package SolidStateDetectors.jl and validate it with comparison to the timing distributions observed in data. We also use simulations and data to demonstrate the depth resolution on a per-pixel basis, with > 90 % of pixels having < 0. 9 mm (FWHM) resolution at 59. 5 keV and < 0. 6 mm (FWHM) resolution at 122. 1 keV. [ABSTRACT FROM AUTHOR]
Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. 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.)
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DbLabel: Engineering Source
An: 191840016
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  Label: Title
  Group: Ti
  Data: Depth calibration of double-sided strip germanium detectors for the compton spectrometer and imager satellite.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Rogers%2C+Field+R%2E%22&quot;&gt;Rogers, Field R.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; fieldr@berkeley.edu&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Pike%2C+Sean+N%2E%22&quot;&gt;Pike, Sean N.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Alnussirat%2C+Samer%22&quot;&gt;Alnussirat, Samer&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Anthony-Petersen%2C+Robin%22&quot;&gt;Anthony-Petersen, Robin&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Boggs%2C+Steven+E%2E%22&quot;&gt;Boggs, Steven E.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hagemann%2C+Felix%22&quot;&gt;Hagemann, Felix&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Haight%2C+Sophia+E%2E%22&quot;&gt;Haight, Sophia E.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Joens%2C+Alyson%22&quot;&gt;Joens, Alyson&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kierans%2C+Carolyn%22&quot;&gt;Kierans, Carolyn&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lowell%2C+Alexander%22&quot;&gt;Lowell, Alexander&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mochizuki%2C+Brent%22&quot;&gt;Mochizuki, Brent&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Shih%2C+Albert+Y%2E%22&quot;&gt;Shih, Albert Y.&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Sleator%2C+Clio%22&quot;&gt;Sleator, Clio&lt;/searchLink&gt;&lt;relatesTo&gt;4&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Tomsick%2C+John+A%2E%22&quot;&gt;Tomsick, John A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Zoglauer%2C+Andreas%22&quot;&gt;Zoglauer, Andreas&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)
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– Name: Abstract
  Label: Abstract
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  Data: Double-sided strip high-purity germanium detectors with three-dimensional position reconstruction capability have been developed over three decades, with space-based applications in high-energy astrophysics and heliophysics. Position resolution in three dimensions is key to reconstruction of Compton scattering events, including for the upcoming Compton Spectrometer and Imager (COSI) satellite mission. Two-dimensional position reconstruction is enabled by segmentation of the two detector faces into orthogonal strip contacts, enabling a pixelized analysis. The depth of an interaction cannot be measured directly but must be inferred from the charge collection time difference between the two faces of the detector. Here, we demonstrate for the first time the depth calibration of a detector with the COSI satellite geometry read out using an application specific integrated circuit (ASIC) developed for the COSI mission. In this work, we map collection time difference to depth using the Julia-based simulation package SolidStateDetectors.jl and validate it with comparison to the timing distributions observed in data. We also use simulations and data to demonstrate the depth resolution on a per-pixel basis, with &gt; 90 % of pixels having &lt; 0. 9 mm (FWHM) resolution at 59. 5 keV and &lt; 0. 6 mm (FWHM) resolution at 122. 1 keV. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Nuclear Instruments &amp; Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=191840016
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.nima.2026.171332
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Germanium detectors
        Type: general
      – SubjectFull: Calibration
        Type: general
      – SubjectFull: Spatial resolution
        Type: general
      – SubjectFull: Simulation software
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      – SubjectFull: Three-dimensional imaging
        Type: general
      – SubjectFull: Application-specific integrated circuits
        Type: general
      – SubjectFull: Compton imaging
        Type: general
    Titles:
      – TitleFull: Depth calibration of double-sided strip germanium detectors for the compton spectrometer and imager satellite.
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            – D: 01
              M: 06
              Text: Jun2026
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