@misc{10481/106418,
year = {2026},
month = {1},
url = {https://hdl.handle.net/10481/106418},
abstract = {Ionizing radiation plays a vital role in numerous applications, such as radiation safety, industrial monitoring, and
medical dosimetry. This study evaluates the performance of four commercially available off-the-shelf (COTS)
rectifier diodes—1N4007, UF4007, BY203–20S, and GP02-40—as detectors for high dose-rate gamma radiation,
using a Cobalt-60 source. Their sensitivity, its variation with accumulated dose (SVWD), and with temperature
(SVWT) were assessed using an ionization chamber as a reference dosimeter. The results indicate that two diode
models exhibit promising performance for dosimetric applications. In fact, the BY203–20S and UF4007 showed a
sensitivity ~7.5 times higher than the ionization chamber, and minimal sensitivity variation with accumulated
doses (~5 % and ~2 %) up to 23 and 33 kGy, respectively. The 1N4007 demonstrated the highest sensitivity (~9
times higher), but also the most significant sensitivity decay, ~-13 % at 22 kGy. In contrast, GP02-40 diode
exhibited the lowest sensitivity, the greatest sensitivity decay, and the lowest reproducibility among the tested
samples. Thermal compensation procedures have been applied to the diode dark current and SVWT, monitoring
in real time the device temperature with the UF4007 as sensor. Around +0.4 %/◦C of increase in relative sensitivities were measured for BY203–20S and UF4007 diodes, highlighting the relevance of compensation the
temperature effects for accurate measurements. These findings suggest that low-cost rectifier COTS diodes may
serve as viable candidates for high dose-rate radiation detection as compact and affordable devices.},
organization = {MCIN/AEI/10.13039/501100011033 (PID2022-137543NB-I00; t IJC2020-
043307-I)},
organization = {European Union NextGeneration EU/PRTR (IJC2020-
043307-I)},
publisher = {Elsevier},
keywords = {Commercial off-the-shelf diodes},
keywords = {Radiation sensor},
keywords = {High dose rate},
title = {High dose-rate gamma radiation response of commercial off-the-shelf diodes},
doi = {10.1016/j.radphyschem.2025.113166},
author = {Ruiz García, Isidoro and Moreno Pérez, Juan Antonio and Valdivieso, P. and Escobedo Araque, Pablo and Palma López, Alberto José and Vila, R. and Carvajal Rodríguez, Miguel Ángel},
}