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RadICAL Stack: a localisation method for dynamic gamma/neutron fields

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RadICAL Stack : a localisation method for dynamic gamma/neutron fields. / Randall, George; Ellis, Mark; Duroe, Kirk; Jones, Ashley Richard; Joyce, Malcolm John; Payne, Christopher; Sellin, Paul; Speller, Robert.

2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2015. p. 1-4.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Randall, G, Ellis, M, Duroe, K, Jones, AR, Joyce, MJ, Payne, C, Sellin, P & Speller, R 2015, RadICAL Stack: a localisation method for dynamic gamma/neutron fields. in 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, pp. 1-4. https://doi.org/10.1109/NSSMIC.2015.7581900

APA

Randall, G., Ellis, M., Duroe, K., Jones, A. R., Joyce, M. J., Payne, C., Sellin, P., & Speller, R. (2015). RadICAL Stack: a localisation method for dynamic gamma/neutron fields. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) (pp. 1-4). IEEE. https://doi.org/10.1109/NSSMIC.2015.7581900

Vancouver

Randall G, Ellis M, Duroe K, Jones AR, Joyce MJ, Payne C et al. RadICAL Stack: a localisation method for dynamic gamma/neutron fields. In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE. 2015. p. 1-4 https://doi.org/10.1109/NSSMIC.2015.7581900

Author

Randall, George ; Ellis, Mark ; Duroe, Kirk ; Jones, Ashley Richard ; Joyce, Malcolm John ; Payne, Christopher ; Sellin, Paul ; Speller, Robert. / RadICAL Stack : a localisation method for dynamic gamma/neutron fields. 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2015. pp. 1-4

Bibtex

@inproceedings{cb4b52815626403fba30ff0f8303085e,
title = "RadICAL Stack: a localisation method for dynamic gamma/neutron fields",
abstract = "A variation of the RadICAL (Radiation Imaging Cylinder Activity Locator) system capable of operating in a dynamic environment, such as that created by active interrogation techniques, has been developed. RadICAL is a novel method for locating a radiological source using a rotating detector element. The detector geometry is that of a thin sheet and is rotated to present a constantly changing surface area to the source; it therefore generates a characteristic temporal response which can be used to determine the source direction. The time required to determine the direction of a source make it unsuitable for dynamic environments and so an alternative method is presented that uses a stack of identical scintillator slabs positioned at fixed horizontal angles around a central axis. By comparing count rates from each slab to a standard response curve, using a specially developed algorithm, the direction of a source can be determined without the need to rotate the detector. EJ-299-33 plastic scintillator was used to allow detection of separate neutron and gamma events in a mixed field through pulse shape discrimination. A four element detector was built and shown to achieve a positional accuracy of approximately 4.4 degrees when exposed to a 1.44MBq 137 Cs source at distances of up to 2m. The same detector was used to discriminate separate neutron and gamma events in a mixed field, which allows for the possibility of locating a neutron source within a gamma rich environment.",
author = "George Randall and Mark Ellis and Kirk Duroe and Jones, {Ashley Richard} and Joyce, {Malcolm John} and Christopher Payne and Paul Sellin and Robert Speller",
year = "2015",
month = oct,
day = "31",
doi = "10.1109/NSSMIC.2015.7581900",
language = "English",
isbn = "9781467398633",
pages = "1--4",
booktitle = "2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)",
publisher = "IEEE",

}

RIS

TY - GEN

T1 - RadICAL Stack

T2 - a localisation method for dynamic gamma/neutron fields

AU - Randall, George

AU - Ellis, Mark

AU - Duroe, Kirk

AU - Jones, Ashley Richard

AU - Joyce, Malcolm John

AU - Payne, Christopher

AU - Sellin, Paul

AU - Speller, Robert

PY - 2015/10/31

Y1 - 2015/10/31

N2 - A variation of the RadICAL (Radiation Imaging Cylinder Activity Locator) system capable of operating in a dynamic environment, such as that created by active interrogation techniques, has been developed. RadICAL is a novel method for locating a radiological source using a rotating detector element. The detector geometry is that of a thin sheet and is rotated to present a constantly changing surface area to the source; it therefore generates a characteristic temporal response which can be used to determine the source direction. The time required to determine the direction of a source make it unsuitable for dynamic environments and so an alternative method is presented that uses a stack of identical scintillator slabs positioned at fixed horizontal angles around a central axis. By comparing count rates from each slab to a standard response curve, using a specially developed algorithm, the direction of a source can be determined without the need to rotate the detector. EJ-299-33 plastic scintillator was used to allow detection of separate neutron and gamma events in a mixed field through pulse shape discrimination. A four element detector was built and shown to achieve a positional accuracy of approximately 4.4 degrees when exposed to a 1.44MBq 137 Cs source at distances of up to 2m. The same detector was used to discriminate separate neutron and gamma events in a mixed field, which allows for the possibility of locating a neutron source within a gamma rich environment.

AB - A variation of the RadICAL (Radiation Imaging Cylinder Activity Locator) system capable of operating in a dynamic environment, such as that created by active interrogation techniques, has been developed. RadICAL is a novel method for locating a radiological source using a rotating detector element. The detector geometry is that of a thin sheet and is rotated to present a constantly changing surface area to the source; it therefore generates a characteristic temporal response which can be used to determine the source direction. The time required to determine the direction of a source make it unsuitable for dynamic environments and so an alternative method is presented that uses a stack of identical scintillator slabs positioned at fixed horizontal angles around a central axis. By comparing count rates from each slab to a standard response curve, using a specially developed algorithm, the direction of a source can be determined without the need to rotate the detector. EJ-299-33 plastic scintillator was used to allow detection of separate neutron and gamma events in a mixed field through pulse shape discrimination. A four element detector was built and shown to achieve a positional accuracy of approximately 4.4 degrees when exposed to a 1.44MBq 137 Cs source at distances of up to 2m. The same detector was used to discriminate separate neutron and gamma events in a mixed field, which allows for the possibility of locating a neutron source within a gamma rich environment.

U2 - 10.1109/NSSMIC.2015.7581900

DO - 10.1109/NSSMIC.2015.7581900

M3 - Conference contribution/Paper

SN - 9781467398633

SP - 1

EP - 4

BT - 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

PB - IEEE

ER -