Comparative investigation of three dose rate meters for their viability in pulsed radiation fields

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • M. Gotz - , University Hospital Carl Gustav Carus Dresden, OncoRay - National Centre for Radiation Research in Oncology (Author)
  • L. Karsch - , University Hospital Carl Gustav Carus Dresden, OncoRay - National Centre for Radiation Research in Oncology (Author)
  • J. Pawelke - , University Hospital Carl Gustav Carus Dresden, Helmholtz-Zentrum Dresden-Rossendorf, OncoRay - National Centre for Radiation Research in Oncology (Author)

Abstract

Pulsed radiation fields, characterized by microsecond pulse duration and correspondingly high pulse dose rates, are increasingly used in therapeutic, diagnostic and research applications. Yet, dose rate meters which are used to monitor radiation protection areas or to inspect radiation shielding are mostly designed, characterized and tested for continuous fields and show severe deficiencies in highly pulsed fields. Despite general awareness of the problem, knowledge of the specific limitations of individual instruments is very limited, complicating reliable measurements. We present here the results of testing three commercial dose rate meters, the RamION ionization chamber, the LB 1236-H proportional counter and the 6150AD-b scintillation counter, for their response in pulsed radiation fields of varied pulse dose and duration. Of these three the RamION proved reliable, operating in a pulsed radiation field within its specifications, while the other two instruments were only able to measure very limited pulse doses and pulse dose rates reliably.

Details

Original languageEnglish
Article number415
Pages (from-to)415-428
Number of pages14
JournalJournal of radiological protection
Volume35
Issue number2
Publication statusPublished - 1 Jun 2015
Peer-reviewedYes

External IDs

PubMed 25978117

Keywords

Sustainable Development Goals

Keywords

  • 6150 AD-b, Dose rate meter, LB 1236-H10, Pulsed radiation, RamION