Performances of 4H-SiC Schottky diodes as neutron detectors

4H-SiC Schottky Barrier Diodes for Efficient Thermal Neutron Detection

“…The detection efficiency of the device can be simply evaluated starting from the total counts above 500 keV [15,21]. The neutron detection efficiency limitation is a consequence of reaction product self-absorption.…”

“…The neutron detection efficiency limitation is a consequence of reaction product self-absorption. Maximum reported efficiency for the single-coated detectors is 5% for the thermal neutrons [13][14][15][21][22][23]. 6 LiF and 10 B 4 C converter layers with normalized surface area of three different detector sizes (1 mm × 1 mm, 2 mm × 2 mm, and 3 mm × 3 mm).…”

“…The neutron detection efficiency limitation is a consequence of reaction product self-absorption. Maximum reported efficiency for the single-coated detectors is 5% for the thermal neutrons [13][14][15][21][22][23].…”

Radiation Response of Silicon Carbide Diodes and Transistors

“…It was also reported that 4H-SiC Schottky diodes could detect X-rays from radio isotopes [31,32]. Besides, the neutron detection by SiC diodes was investigated previously [33,34]. As for light ions and X-rays irradiation into SiC, relatively large number of studies has been already reported.…”

The Fabrication and Characterization of Ni/4H-SiC Schottky Diode Radiation Detectors with a Sensitive Area of up to 4 cm2

“…Many other semiconductors have been used to fabricate detectors at the same time: CdTe, CdZnTe, GaAs, and AlInP are focused on photon detection [ 4 , 5 , 6 ]; diamond is suitable for neutron, photon, and charged particle detection and has ultra-high radiation resistance but with tiny dimension, uneven quality, and high cost [ 7 , 8 ]. By now, SiC detectors have been demonstrated to have a high resolution in the detection of charged particles [ 9 , 10 , 11 , 12 , 13 , 14 ], photons [ 15 , 16 , 17 , 18 ], and neutrons [ 19 , 20 , 21 , 22 ]. Particularly, because of their outstanding operations in applications in intense radiation fields and harsh environments, such as alpha particle monitoring and neutron detection in actinide waste-tank environments [ 23 ] and neutron and gamma-ray monitoring of spent nuclear fuel assemblies [ 24 , 25 ], and because the technology has matured in terms of material growth and device fabrication, they have been considered preferable substitutions for conventional silicon radiation detectors.…”