Silicon Drift Detectors for the Measurement and Reconstruction of Beta Spectra
The ASPECT-BET project, or An sdd-SPECTrometer for BETa decay studies, aims to develop a novel technique for the precise measurement of forbidden beta spectra in the 10 keV-1 MeV range. This technique employs a Silicon Drift Detector (SDD) as the main spectrometer with the option of a veto system to reject events exhibiting only partial energy deposition in the SDD. A precise understanding of the spectrometer's response to electrons is crucial for accurately reconstructing the theoretical shape of the beta spectrum. To compute this response, GEANT4 simulations optimized for low-energy electron interactions are used and validated with a custom-made electron gun. In this article we present the performance of these simulations in reconstructing the electron spectra measured with SDDs of a <sup>109</sup>Cd monochromatic source, both in vacuum and in air. The allowed beta spectrum of a <sup>14</sup>C source was also measured and analyzed, proving that this system is suitable for the application in ASPECT-BET.
Authors
- Marco Carminati (ORCID: https://orcid.org/0000-0002-3485-4317)
- G. De Gregorio (ORCID: https://orcid.org/0000-0003-0253-915X)
- R. Mancino (ORCID: https://orcid.org/0000-0002-3037-4527)
- C. Brofferio (ORCID: https://orcid.org/0000-0003-2134-3873)
- P. Lechner (ORCID: https://orcid.org/0000-0003-0906-3027)
- Carlo Ettore Fiorini (ORCID: https://orcid.org/0000-0002-1157-0143)
- Tommaso Bradanini
- G. Gagliardi
- M. Biassoni (ORCID: https://orcid.org/0000-0002-9184-6217)
- A. Nava (ORCID: https://orcid.org/0000-0002-2968-2290)
- L. Bernardini
Institutions
- GSI Helmholtz Centre for Heavy Ion Research (DE)
- University of Campania "Luigi Vanvitelli" (IT)
- Charles University (CZ)
- Technische Universität Darmstadt (DE)
- Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca (IT)
- Halbleiterlabor of the Max-Planck-Society (DE)
- University of Milano-Bicocca (IT)
- Politecnico di Milano (IT)
Publication Details
- Journal
- Sensors
- Published
- 2024-12-22
- DOI
- https://doi.org/10.3390/s24248202
- Citations
- 2
- Primary Topic
- Radiation Detection and Scintillator Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.22
Funders
- European Commission