Simultaneous Neutron-Photon Dosimetry with a Compact Organic Scintillator Detector

C. A. Miller, A. DI Fulvio, W. M. Steinberger, S. D. Clarke, S. A. Pozzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In many applications involving radiation fields, it is important to determine dose rates received by radiation workers and the public. In many scenarios, neutrons and photons can both be significant contributors to the dose rate. Traditionally, separate instruments have been used for each particle's contribution to the dose rate, but it has been shown experimentally that an organic scintillator detector can be used to accurately measure both contributions simultaneously. The scalability of an organic scintillator also allows for use in both high-and low-flux environments. In previous work, we demonstrated the influence of detector size on dose rate measurements. It was shown that a 5.08-cm depth EJ-309 liquid organic scintillator with the smallest diameter possible requires the least corrections to accurately measure dose rate. This work builds on the previous study by demonstrating neutron and photon dose rate measurements with a 50 mm depth × 6mm × 6mm stilbene crystal bar, which is similar in composition to EJ-309, coupled to a silicon photomultiplier readout. The experimentally measured dose rates are compared to simulation and traditional dosimeters to verify accuracy over the sensitivity range of the stilbene detector. This small detector will allow for highly mobile, accurate dosimetry in the field.

Original languageEnglish (US)
Title of host publication2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728141640
DOIs
StatePublished - Oct 2019
Event2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019 - Manchester, United Kingdom
Duration: Oct 26 2019Nov 2 2019

Publication series

Name2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019

Conference

Conference2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
Country/TerritoryUnited Kingdom
CityManchester
Period10/26/1911/2/19

ASJC Scopus subject areas

  • Signal Processing
  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics

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