TY - JOUR
T1 - Modeling and SPICE Simulation of the CdS/CdTe Neutron Detectors Integrated with Si-Poly TFTs Amplifiers
AU - Hernandez-Gutierrez, Carlos A.
AU - Avila-Avendano, Carlos
AU - Solis-Cisneros, Horacio I.
AU - Conde, Jorge
AU - Sevilla-Camacho, Perla Y.
AU - Quevedo-Lopez, Manuel A.
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - In this work, it is presented a unified model to integrate a radiation detector on a single chip using TFTs-based amplifiers, to fabricate a low-cost thermal neutron detector system. The model is based on the current-voltage experimental measurements of the CdS/CdTe detector and CMOS Si-Poly TFTs technology. Parameters obtained by I-V and C - V analysis were introduced into Smart SPICE to design the amplifiers. The output voltage was simulated for a neutron capture event. Three amplification topologies were studied, obtaining an output voltage in the range of 180 to 260 mV with a generated photocurrent pulse around 3.5 \mu \text{A}, which is high enough to be interfaced with a microcontroller. The neutron detector is integrated into TFT amplifiers with a gain of around 50 dB and bandwidth of 4.7 MHz at -3 dB.
AB - In this work, it is presented a unified model to integrate a radiation detector on a single chip using TFTs-based amplifiers, to fabricate a low-cost thermal neutron detector system. The model is based on the current-voltage experimental measurements of the CdS/CdTe detector and CMOS Si-Poly TFTs technology. Parameters obtained by I-V and C - V analysis were introduced into Smart SPICE to design the amplifiers. The output voltage was simulated for a neutron capture event. Three amplification topologies were studied, obtaining an output voltage in the range of 180 to 260 mV with a generated photocurrent pulse around 3.5 \mu \text{A}, which is high enough to be interfaced with a microcontroller. The neutron detector is integrated into TFT amplifiers with a gain of around 50 dB and bandwidth of 4.7 MHz at -3 dB.
KW - Radiation detector
KW - TFTs
KW - transimpedance amplifier
UR - http://www.scopus.com/inward/record.url?scp=85129609623&partnerID=8YFLogxK
U2 - 10.1109/TNS.2022.3171695
DO - 10.1109/TNS.2022.3171695
M3 - Artículo
AN - SCOPUS:85129609623
SN - 0018-9499
VL - 69
SP - 1310
EP - 1315
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
IS - 6
ER -