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    Full 3D position reconstruction of a radioactive source based on a novel hyperbolic geometrical algorithm

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    Authors
    Panaino, C. M. V.
    Mackay, Ranald I
    Sotiropoulos, M.
    Kirkby, Karen J
    Taylor, Michael J
    Affiliation
    Division of Cancer Sciences, University of Manchester,The Christie NHS Foundation Trust, M20 4BX, Manchester, UK.
    Issue Date
    2020
    
    Metadata
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    Abstract
    A new method to locate, with millimetre uncertainty, in 3D, an x-ray source emitting multiple X-rays in a cascade, employing conventional LaBr3(Ce) scintillation detectors, has been developed. Using 16 detectors in a symmetrical configuration the detector energy and time signals, resulting from the X-ray interactions, are fed into a new source position reconstruction algorithm. The Monte-Carlo based Geant4 framework has been used to simulate the detector array and a 60Co source located at two positions within the spectrometer central volume. For a source located at (0,0,0) the algorithm reports X, Y, Z values of -0.3 ± 2.5, -0.4 ± 2.4, and -0.6 ± 2.5 mm, respectively. For a source located at (20,20,20) mm, with respect to the array centre, the algorithm reports X, Y, Z values of 20.2 ± 1.0, 20.2 ± 0.9, and 20.1 ± 1.2 mm. The resulting precision of the reconstruction means that this technique could find application in a number of areas including nuclear medicine, national security, radioactive waste assay and proton beam therapy. Keywords: Gamma-ray spectroscopy; Reconstruction algorithm; Source emission position reconstruction.
    Citation
    Panaino CMV, Mackay RI, Sotiropoulos M, Kirkby KJ, Taylor MJ. Full 3D position reconstruction of a radioactive source based on a novel hyperbolic geometrical algorithm. Comput Phys Commun. 2020;252:107131.
    Journal
    Computer Physics Communications
    URI
    http://hdl.handle.net/10541/623166
    DOI
    10.1016/j.cpc.2019.107131
    PubMed ID
    32624585
    Additional Links
    https://dx.doi.org/10.1016/j.cpc.2019.107131
    Type
    Article
    Language
    en
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cpc.2019.107131
    Scopus Count
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