Final published version
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Improving radiation localization via energy-resolved angular photon responses
AU - Joyce, Malcolm J.
AU - Tsitsimpelis, Ioannis
AU - Alton, Tilly L.
AU - James Taylor, C.
AU - West, Andrew
AU - Lennox, Barry
AU - Livens, Francis
PY - 2025/9/1
Y1 - 2025/9/1
N2 - Results obtained from characterizing the capabilities of a collimated cerium bromide (CeBr 3) detector developed for use on robotic platforms are reported. The detector's field-of-view is collimated by a lead slit, and experiments have been performed with point radiation sources configured in a-priori known geometric scenarios. The collimated detector is scanned over radiation sources using gimbal control, acquiring a spectrum at each angle to obtain energy-resolved angular responses. These responses are then approximated by mathematical transforms to enhance localization accuracy. Various combinations of radionuclides have been used to demonstrate the effectiveness of this approach. The results reveal that expressing X-ray and γ-ray angular responses with an appropriate transform improves the resolving power of the slit collimator. This technique offers distinct advantages in robot deployments by enabling additional in-situ characterization capabilities without imposing additional limitations or requirements.
AB - Results obtained from characterizing the capabilities of a collimated cerium bromide (CeBr 3) detector developed for use on robotic platforms are reported. The detector's field-of-view is collimated by a lead slit, and experiments have been performed with point radiation sources configured in a-priori known geometric scenarios. The collimated detector is scanned over radiation sources using gimbal control, acquiring a spectrum at each angle to obtain energy-resolved angular responses. These responses are then approximated by mathematical transforms to enhance localization accuracy. Various combinations of radionuclides have been used to demonstrate the effectiveness of this approach. The results reveal that expressing X-ray and γ-ray angular responses with an appropriate transform improves the resolving power of the slit collimator. This technique offers distinct advantages in robot deployments by enabling additional in-situ characterization capabilities without imposing additional limitations or requirements.
KW - Radiation characterization
KW - angular responses
KW - localization
KW - remote operations
U2 - 10.1142/s021830132545003x
DO - 10.1142/s021830132545003x
M3 - Journal article
VL - 34
JO - International Journal of Modern Physics E
JF - International Journal of Modern Physics E
SN - 0218-3013
IS - 9
M1 - 2545003
ER -