3D silicon detectors for neutron imaging applications
- NázevTitle
- 3D silicon detectors for neutron imaging applications3D silicon detectors for neutron imaging applications
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- M. Povoli, A. Kok, O. Koybasi, M. Getz, T. Slavíček
- Klíčová slovaKeywords
- Neutron detectors (cold, thermal, Fast neutrons, Solid state detectors, Detector mod-elling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc
- DOIDOI
- 10.1088/1748-0221/18/01/C01056
- Časopis / citaceJournal / citation
- Journal of Instrumentation 18(01), C01056 (2023) · ISSN 1748-0221
- RokYear
- 2023
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 5 (OpenAlex)
- Plný text (open access)Full text (open access)
- https://iopscience.iop.org/article/10.1088/1748-0221/18/01/C01056/pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
Neutron detection is of great importance in many fields spanning from scientific research, to nuclear science, and to medical application. The development of silicon-based neutron detectors with enhanced neutron detection efficiency can offer several advantages such as spatial resolution, enhanced dynamic range and background discrimination. In this work, increased detection efficiency is pursued by fabricating high aspect ratio 3D micro-structures filled with neutron converting materials (B4C) on planar silicon detectors. An in-depth feasibility study was carried out in all aspects of the sensor fabrication technology. Passivation of the etched structures was studied in detail, to ensure good electrical performance. The conformal deposition of B4C with a newly developed process showed excellent results. Preliminary electrical characterisation of the completed devices is promising, and detectors have been mounted on dedicated boards in view of the upcoming tests with neutrons.
Neutron detection is of great importance in many fields spanning from scientific research, to nuclear science, and to medical application. The development of silicon-based neutron detectors with enhanced neutron detection efficiency can offer several advantages such as spatial resolution, enhanced dynamic range and background discrimination. In this work, increased detection efficiency is pursued by fabricating high aspect ratio 3D micro-structures filled with neutron converting materials (B4C) on planar silicon detectors. An in-depth feasibility study was carried out in all aspects of the sensor fabrication technology. Passivation of the etched structures was studied in detail, to ensure good electrical performance. The conformal deposition of B4C with a newly developed process showed excellent results. Preliminary electrical characterisation of the completed devices is promising, and detectors have been mounted on dedicated boards in view of the upcoming tests with neutrons.