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A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators

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A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators. / Gamage, Kelum; Joyce, Malcolm; Taylor, Graeme.
In: IEEE Transactions on Nuclear Science, Vol. 59, No. 4, 08.2012, p. 1432-1437.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Gamage, K, Joyce, M & Taylor, G 2012, 'A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators', IEEE Transactions on Nuclear Science, vol. 59, no. 4, pp. 1432-1437. https://doi.org/10.1109/TNS.2012.2185710

APA

Gamage, K., Joyce, M., & Taylor, G. (2012). A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators. IEEE Transactions on Nuclear Science, 59(4), 1432-1437. https://doi.org/10.1109/TNS.2012.2185710

Vancouver

Gamage K, Joyce M, Taylor G. A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators. IEEE Transactions on Nuclear Science. 2012 Aug;59(4):1432-1437. Epub 2012 Mar 6. doi: 10.1109/TNS.2012.2185710

Author

Gamage, Kelum ; Joyce, Malcolm ; Taylor, Graeme. / A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators. In: IEEE Transactions on Nuclear Science. 2012 ; Vol. 59, No. 4. pp. 1432-1437.

Bibtex

@article{7ffbfc687062434a885c110b39fa7c0b,
title = "A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators",
abstract = "As a result of recent advances in digital pulse-shape discrimination methods it has become possible to image mixed fields (radiation environments compromising both neutrons and gamma rays) relatively quickly with a single, organic liquid 'fast' scintillator within a heavy metal collimator. The use of a liquid scintillator has significant benefits over other techniques for imaging radiation environments as the acquired data can be analysed to provide separate information about the gamma and neutron emissions from a source (or sources) in a single scan. The imaging resolution achieved is fundamentally related to the detector efficiency and to the collimator geometry. In this paper the impact of using two different geometries of tungsten collimator are compared experimentally and three different materials considered in the Monte Carlo simulation, in order to determine the optimum set-up for mixed-field imaging. The measurements were performed in the low-scatter facility of the National Physical Laboratory, Teddington.",
keywords = "Bespoke fast digitizer, digital imaging , figure of merit , mixed radiation fields , pulse gradient analysis",
author = "Kelum Gamage and Malcolm Joyce and Graeme Taylor",
year = "2012",
month = aug,
doi = "10.1109/TNS.2012.2185710",
language = "English",
volume = "59",
pages = "1432--1437",
journal = "IEEE Transactions on Nuclear Science",
issn = "0018-9499",
publisher = "IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC",
number = "4",

}

RIS

TY - JOUR

T1 - A comparison of collimator geometries for imaging mixed radiation fields with fast liquid organic scintillators

AU - Gamage, Kelum

AU - Joyce, Malcolm

AU - Taylor, Graeme

PY - 2012/8

Y1 - 2012/8

N2 - As a result of recent advances in digital pulse-shape discrimination methods it has become possible to image mixed fields (radiation environments compromising both neutrons and gamma rays) relatively quickly with a single, organic liquid 'fast' scintillator within a heavy metal collimator. The use of a liquid scintillator has significant benefits over other techniques for imaging radiation environments as the acquired data can be analysed to provide separate information about the gamma and neutron emissions from a source (or sources) in a single scan. The imaging resolution achieved is fundamentally related to the detector efficiency and to the collimator geometry. In this paper the impact of using two different geometries of tungsten collimator are compared experimentally and three different materials considered in the Monte Carlo simulation, in order to determine the optimum set-up for mixed-field imaging. The measurements were performed in the low-scatter facility of the National Physical Laboratory, Teddington.

AB - As a result of recent advances in digital pulse-shape discrimination methods it has become possible to image mixed fields (radiation environments compromising both neutrons and gamma rays) relatively quickly with a single, organic liquid 'fast' scintillator within a heavy metal collimator. The use of a liquid scintillator has significant benefits over other techniques for imaging radiation environments as the acquired data can be analysed to provide separate information about the gamma and neutron emissions from a source (or sources) in a single scan. The imaging resolution achieved is fundamentally related to the detector efficiency and to the collimator geometry. In this paper the impact of using two different geometries of tungsten collimator are compared experimentally and three different materials considered in the Monte Carlo simulation, in order to determine the optimum set-up for mixed-field imaging. The measurements were performed in the low-scatter facility of the National Physical Laboratory, Teddington.

KW - Bespoke fast digitizer

KW - digital imaging

KW - figure of merit

KW - mixed radiation fields

KW - pulse gradient analysis

U2 - 10.1109/TNS.2012.2185710

DO - 10.1109/TNS.2012.2185710

M3 - Journal article

VL - 59

SP - 1432

EP - 1437

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

SN - 0018-9499

IS - 4

ER -