Measurement of activity distribution using photostimulable phosphor imaging plates in decommissioned 10 mv medical linear accelerator

Toshioh Fujibuchi, Shunsuke Yonai, Masahiro Yoshida, Takeji Sakae, Hiroshi Watanabe, Yoshihisa Abe, Jun Itami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Photonuclear reactions generate neutrons in the head of the linear accelerator. Therefore, some parts of the linear accelerator can become activated. Such activated materials must be handled as radioactive waste. The authors attempted to investigate the distribution of induced radioactivity using photostimulable phosphor imaging plates. Autoradiographs were produced from some parts of the linear accelerator (the target, upper jaw, multileaf collimator and shielding). The levels of induced radioactivity were confirmed to be non-uniform within each part from the autoradiographs. The method was a simple and highly sensitive approach to evaluating the relative degree of activation of the linear accelerators, so that appropriate materials management procedures can be carried out.

Original languageEnglish
Pages (from-to)S158-S162
JournalHealth physics
Volume107
Issue numberSUPPL. 2
DOIs
Publication statusPublished - Aug 2014

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Radiology Nuclear Medicine and imaging
  • Health, Toxicology and Mutagenesis

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