Inverse calibration matrix algorithm for radiation detection portal monitors

Cited 7 time in webofscience Cited 6 time in scopus
  • Hit : 425
  • Download : 0
Radioisotope identification of an energy spectrum obtained from a radiation portal monitor (RPM) is a challenging task due to its insufficient data acquisition time. Thus, conventional algorithms for a radiation portal monitor, such as the gross count algorithm and the energy window algorithm, use the gross count of the measured spectrum or the gross counts of specific energy ranges. However, the conventional algorithms cause false alarms because they simply compare the gross count of the measured spectrum to the background radiation count. In this paper, an inverse calibration matrix (ICM) algorithm for radioisotope identification is proposed, which uses approaches different from those of conventional algorithms. To evaluate this method, various gamma energy spectra of 133Ba, 137Cs, 60Co, 22Na, background radiation and a potassium fertilizer that included 40K were measured by four photomultipliers attached to a large-area polyvinyl-toluene (PVT) scintillator for a radiation portal monitor. The results demonstrated that the energy spectra obtained with measurement times ranging from 0.1 to 50 s were precisely identified by the ICM algorithm.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2019-02
Language
English
Article Type
Article; Proceedings Paper
Citation

RADIATION PHYSICS AND CHEMISTRY, v.155, pp.127 - 132

ISSN
0969-806X
DOI
10.1016/j.radphyschem.2018.07.022
URI
http://hdl.handle.net/10203/250096
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 7 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0