True-coincidence-summing corrections of natural and artificial radionuclides for Mazinger, the very low background and high-efficiency gamma-ray spectrometer, using Monte Carlo simulations with Geant4.
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| Title: | True-coincidence-summing corrections of natural and artificial radionuclides for Mazinger, the very low background and high-efficiency gamma-ray spectrometer, using Monte Carlo simulations with Geant4. |
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| Authors: | Romero-Fuentes, D.1 (AUTHOR) romerofuentes.daniel@usal.es, Rivas-Gómez, R.1 (AUTHOR), Quintana-Arnés, B.1 (AUTHOR) |
| Source: | Applied Radiation & Isotopes. Dec2025, Vol. 226, pN.PAG-N.PAG. 1p. |
| Subjects: | Gamma ray spectrometer, Germanium radiation detectors, Radioisotopes, Monte Carlo method, Electromagnetic shielding, Signal processing |
| Abstract: | The development of very low background γ -ray spectrometers has led to multidetector systems, such as Mazinger. Mazinger is an array of two HPGe detectors and two NaI(Tl) anti-Compton rings in anticoincidence configuration. The detector shielding combines passive shielding, composed of three layers of iron, lead and copper and active shielding, consisting of two anti-muon veto detectors in addition to the previously mentioned anti-Compton rings. High efficiency and background reduction are achieved for low-level activity measurements, approaching the limit of the technique. However, true-coincidence-summing (TCS) effects become a drawback in Mazinger due to its specific anticoincidence configuration. This occurs because any simultaneous triggering of more than one of the four detectors within the coincidence window results in the event being rejected. Following the implementation of Mazinger in the Monte Carlo simulations with Geant4, TCS correction factors were calculated, reaching values as high as 1200 % in some cases. This work presents the successful results obtained for both natural and artificial multi- γ -emitting radionuclides, including 228Ac, 133Ba, 214Bi, 139Ce, 134Cs, 60Co, 152Eu, and 209Tl. • HPGe detectors' full-energy peak efficiencies calculated via Geant4 MC simulations. • TCS effects significantly impact high-efficiency HPGe detectors with active shielding. • TCS correction factors for HPGe detectors computed via Geant4 MC simulations. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Radiation & Isotopes is the property of Pergamon Press - An Imprint of Elsevier Science 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: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 189185504 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: True-coincidence-summing corrections of natural and artificial radionuclides for Mazinger, the very low background and high-efficiency gamma-ray spectrometer, using Monte Carlo simulations with Geant4. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Romero-Fuentes%2C+D%2E%22">Romero-Fuentes, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> romerofuentes.daniel@usal.es</i><br /><searchLink fieldCode="AR" term="%22Rivas-Gómez%2C+R%2E%22">Rivas-Gómez, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Quintana-Arnés%2C+B%2E%22">Quintana-Arnés, B.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Radiation+%26+Isotopes%22">Applied Radiation & Isotopes</searchLink>. Dec2025, Vol. 226, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gamma+ray+spectrometer%22">Gamma ray spectrometer</searchLink><br /><searchLink fieldCode="DE" term="%22Germanium+radiation+detectors%22">Germanium radiation detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes%22">Radioisotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Monte+Carlo+method%22">Monte Carlo method</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+shielding%22">Electromagnetic shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The development of very low background γ -ray spectrometers has led to multidetector systems, such as Mazinger. Mazinger is an array of two HPGe detectors and two NaI(Tl) anti-Compton rings in anticoincidence configuration. The detector shielding combines passive shielding, composed of three layers of iron, lead and copper and active shielding, consisting of two anti-muon veto detectors in addition to the previously mentioned anti-Compton rings. High efficiency and background reduction are achieved for low-level activity measurements, approaching the limit of the technique. However, true-coincidence-summing (TCS) effects become a drawback in Mazinger due to its specific anticoincidence configuration. This occurs because any simultaneous triggering of more than one of the four detectors within the coincidence window results in the event being rejected. Following the implementation of Mazinger in the Monte Carlo simulations with Geant4, TCS correction factors were calculated, reaching values as high as 1200 % in some cases. This work presents the successful results obtained for both natural and artificial multi- γ -emitting radionuclides, including 228Ac, 133Ba, 214Bi, 139Ce, 134Cs, 60Co, 152Eu, and 209Tl. • HPGe detectors' full-energy peak efficiencies calculated via Geant4 MC simulations. • TCS effects significantly impact high-efficiency HPGe detectors with active shielding. • TCS correction factors for HPGe detectors computed via Geant4 MC simulations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Radiation & Isotopes is the property of Pergamon Press - An Imprint of Elsevier Science 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: 10.1016/j.apradiso.2025.112173 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Gamma ray spectrometer Type: general – SubjectFull: Germanium radiation detectors Type: general – SubjectFull: Radioisotopes Type: general – SubjectFull: Monte Carlo method Type: general – SubjectFull: Electromagnetic shielding Type: general – SubjectFull: Signal processing Type: general Titles: – TitleFull: True-coincidence-summing corrections of natural and artificial radionuclides for Mazinger, the very low background and high-efficiency gamma-ray spectrometer, using Monte Carlo simulations with Geant4. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Romero-Fuentes, D. – PersonEntity: Name: NameFull: Rivas-Gómez, R. – PersonEntity: Name: NameFull: Quintana-Arnés, B. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 09698043 Numbering: – Type: volume Value: 226 Titles: – TitleFull: Applied Radiation & Isotopes Type: main |
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