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250 μm Thick Detectors for Neutron Detection - Design, Electrical Characteristics, and Detector Performances

MetadataDetails
Publication Date2024-08-22
JournalKey engineering materials
AuthorsGabriele Trovato, Alessandro Meli, A. Muoio, R. Reitano, L. Calcagno
InstitutionsInstitute for Microelectronics and Microsystems, Institute for the Science and Technology of Plasmas
Citations2

Solid State Detectors (SSD) are crucial for fast neutron detection and spectroscopy in tokamaks due to their solid structure, neutron-gamma discrimination, and magnetic field resistance. They provide high energy resolutions without external conversion stages, enabling compact array installations in the harsh environment of a tokamak. Research comparing diamond and 4H-SiC detectors highlights thickness as a key efficiency factor. A 250 μm SiC epilayer with low doping, grown using a high-growth-rate process, exhibits sharp interfaces and minimal defects, essential for neutron detectors. The study evaluates detector designs, and performance using a 4H-SiC substrate. Various detector designs, such as Schottky diodes and p/n diodes, are assessed via I-V and C-V measurements, addressing high depletion voltage challenges. Preliminary neutron irradiation tests validate detector functionality, energy resolution and confirming detector reliability.

  1. **** - Solid state detectors for neutron radiation monitoring in fusion facilities [Crossref]
  2. **** - Study of silicon carbide for X-ray detection and spectroscopy [Crossref]