Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Real-time, fast-neutron spectroscopy for source identification in mixed-field imaging applications
AU - Beaumont, J.
AU - Mellor, M.
AU - Joyce, M.J.
PY - 2012
Y1 - 2012
N2 - The need for radiation assessment in nuclear decommissioning and decontamination has led to the production of several gamma-ray imaging systems. Those currently in widespread use, rely solely on the gamma-ray field to obtain spatial information of radioactive sources. Recent advances in detector technology allow mixed radiation fields to be discriminated in real-time and thus to include neutron radiation in non-intrusive radiological evaluation. In this paper neutron energy deposition in an EJ-309 detector has been investigated for three different neutron sources showing they can be distinguished with relatively low exposure to a detector; making way for use in imaging applications. Imaging experiments were performed with americium-beryllium and californium allowing the sources to be identified individually. These sources were imaged simultaneously in close proximity and were distinguished using a least chi squared fit technique.
AB - The need for radiation assessment in nuclear decommissioning and decontamination has led to the production of several gamma-ray imaging systems. Those currently in widespread use, rely solely on the gamma-ray field to obtain spatial information of radioactive sources. Recent advances in detector technology allow mixed radiation fields to be discriminated in real-time and thus to include neutron radiation in non-intrusive radiological evaluation. In this paper neutron energy deposition in an EJ-309 detector has been investigated for three different neutron sources showing they can be distinguished with relatively low exposure to a detector; making way for use in imaging applications. Imaging experiments were performed with americium-beryllium and californium allowing the sources to be identified individually. These sources were imaged simultaneously in close proximity and were distinguished using a least chi squared fit technique.
U2 - 10.1109/NSSMIC.2012.6551097
DO - 10.1109/NSSMIC.2012.6551097
M3 - Conference contribution/Paper
SN - 9781467320283
SP - 219
EP - 221
BT - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC)
PB - IEEE
ER -