TY - GEN
T1 - Improved low power, modular thermal neutron counter based on microstructured semiconductor neutron detectors (MSND)
AU - Fronk, Ryan G.
AU - Bellinger, Steven L.
AU - Henson, Luke C.
AU - Huddleston, David E.
AU - Ochs, Taylor R.
AU - Sobering, Timothy J.
AU - McGregor, Douglas S.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/10/16
Y1 - 2017/10/16
N2 - AmoAyAzr , mass-producible, low-power, compact thermal-neutron counter has been developed to meet the needs for modern detector instruments and to compete with aging 3He-based counter systems. The Domino V5.4 neutron detector package is populated with four 1-cm2 active-area microstructured semiconductor neutron detectors (MSNDs). The detectors are calibrated to an intrinsic thermal neutron detection efficiency of 30% over its 4 cm2 active area. A gamma-ray rejection ratio of at least 1:108 is achieved at this calibration level. Total device dimensions measure 2.5-cm wide by 3.8-cm tall and 0.47-cm thick, weighing 9.5 g. Individual Dominoes can be tiled together into strings and then arrayed laterally to form large-area instruments. In this form, the small sensor can populate instruments up to 1 m2, with a cost that is comparable to a similar 3He-based array. The addition of I2C-based bias and threshold controllers reduces sensor cost and complexity over the previously-reported Domino versions (V3.0 and V4.0) and allows for user-end calibrations and modifications. Furthermore, the Domino has realized lOx reduced power consumption over previous versions, to nearly 90uW at 3.3 volts, while also reducing sensitivity to thermal- and capacitance-induced noise from the MSNDs, making the Domino an ideal candidate for 3He replacement and implementation in low-power, portable neutron-detector instruments.
AB - AmoAyAzr , mass-producible, low-power, compact thermal-neutron counter has been developed to meet the needs for modern detector instruments and to compete with aging 3He-based counter systems. The Domino V5.4 neutron detector package is populated with four 1-cm2 active-area microstructured semiconductor neutron detectors (MSNDs). The detectors are calibrated to an intrinsic thermal neutron detection efficiency of 30% over its 4 cm2 active area. A gamma-ray rejection ratio of at least 1:108 is achieved at this calibration level. Total device dimensions measure 2.5-cm wide by 3.8-cm tall and 0.47-cm thick, weighing 9.5 g. Individual Dominoes can be tiled together into strings and then arrayed laterally to form large-area instruments. In this form, the small sensor can populate instruments up to 1 m2, with a cost that is comparable to a similar 3He-based array. The addition of I2C-based bias and threshold controllers reduces sensor cost and complexity over the previously-reported Domino versions (V3.0 and V4.0) and allows for user-end calibrations and modifications. Furthermore, the Domino has realized lOx reduced power consumption over previous versions, to nearly 90uW at 3.3 volts, while also reducing sensitivity to thermal- and capacitance-induced noise from the MSNDs, making the Domino an ideal candidate for 3He replacement and implementation in low-power, portable neutron-detector instruments.
UR - https://www.scopus.com/pages/publications/85041732287
U2 - 10.1109/NSSMIC.2016.8069791
DO - 10.1109/NSSMIC.2016.8069791
M3 - Conference contribution
AN - SCOPUS:85041732287
T3 - 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016
BT - 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016
Y2 - 29 October 2016 through 6 November 2016
ER -