TY - GEN
T1 - Parametric evaluation of active neutron interrogation for the detection of shielded highly-enriched uranium in the field
AU - Chichester, David L.
AU - Thompson, Scott J.
AU - Seabury, Edward H.
AU - Clement, Ryan R.C.
PY - 2011
Y1 - 2011
N2 - Parametric studies using numerical simulations are being performed to assess the performance capabilities and limits of active neutron interrogation for detecting shielded highly enriched uranium (HEU). Varying the shield material, HEU mass, HEU depth inside the shield, and interrogating neutron source energy, the simulations account for both neutron and photon emission signatures from the HEU with resolution in both energy and time. The results are processed to represent different irradiation timing schemes and several different classes of radiation detectors, and evaluated using a statistical approach considering signal intensity over background. This paper describes the details of the modeling campaign and some preliminary results, weighing the strengths of alternative measurement approaches for the different irradiation scenarios.
AB - Parametric studies using numerical simulations are being performed to assess the performance capabilities and limits of active neutron interrogation for detecting shielded highly enriched uranium (HEU). Varying the shield material, HEU mass, HEU depth inside the shield, and interrogating neutron source energy, the simulations account for both neutron and photon emission signatures from the HEU with resolution in both energy and time. The results are processed to represent different irradiation timing schemes and several different classes of radiation detectors, and evaluated using a statistical approach considering signal intensity over background. This paper describes the details of the modeling campaign and some preliminary results, weighing the strengths of alternative measurement approaches for the different irradiation scenarios.
UR - https://www.scopus.com/pages/publications/84858678499
U2 - 10.1109/NSSMIC.2011.6154303
DO - 10.1109/NSSMIC.2011.6154303
M3 - Conference contribution
AN - SCOPUS:84858678499
SN - 9781467301183
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 964
EP - 971
BT - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Y2 - 23 October 2011 through 29 October 2011
ER -