TY - GEN
T1 - Large area sensing arrays for detection of thermal neutrons
AU - Kunnen, George R.
AU - Pressler, Daniel
AU - Lee, Edward H.
AU - Allee, David
AU - Murphy, John W.
AU - Mejia, Israel
AU - Quevedo, Manuel
AU - Gnade, Bruce
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Developments of flexible detection arrays suggest that portable robust detectors are indeed possible. A large area flexible array promises a large capture cross section in a light weight rugged format suitable for deployment at ports of entry. The approach for this detector uses a high neutron-capture cross-section layer, such as 10B, which captures incident thermal neutrons, and emits energetic ionizing charged particles. These ionizing particles are sensed using an integrated diode. The resulting charge is then amplified via a low-noise thin film transistor amplifier. We present a low-noise optimized active pixel sensor (APS) design which can be implemented in either a low temperature InGaZnO or an a-Si:H thin film transistor (TFT) process compatible with plastic substrates. Here, we also present a detectable alpha particle response with our dual stage APS design in combination with an externally connected commercial PIN diode. Furthermore, we discuss detector and array modeling which will further aid in future designs.
AB - Developments of flexible detection arrays suggest that portable robust detectors are indeed possible. A large area flexible array promises a large capture cross section in a light weight rugged format suitable for deployment at ports of entry. The approach for this detector uses a high neutron-capture cross-section layer, such as 10B, which captures incident thermal neutrons, and emits energetic ionizing charged particles. These ionizing particles are sensed using an integrated diode. The resulting charge is then amplified via a low-noise thin film transistor amplifier. We present a low-noise optimized active pixel sensor (APS) design which can be implemented in either a low temperature InGaZnO or an a-Si:H thin film transistor (TFT) process compatible with plastic substrates. Here, we also present a detectable alpha particle response with our dual stage APS design in combination with an externally connected commercial PIN diode. Furthermore, we discuss detector and array modeling which will further aid in future designs.
UR - http://www.scopus.com/inward/record.url?scp=84881587717&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881587717&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2012.6551083
DO - 10.1109/NSSMIC.2012.6551083
M3 - Conference contribution
AN - SCOPUS:84881587717
SN - 9781467320306
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 156
EP - 161
BT - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
T2 - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Y2 - 29 October 2012 through 3 November 2012
ER -