Planning of occupational dose reduction at bwr power plant by past dose record analysis combined with on-site workers' idea analysis

Tomohiro Konno, Junichi Taira, Toshiyuki Hayashida, Akira Suzuki, Katsumi Hayashi, Satoshi Kato, Takashi Ishikawa, Takahiro Konno, Katsumi Hayashi

Research output: Contribution to journalArticle

Abstract

In order to establish a plan for occupational dose reduction at operating plants, outage inspection works that involve high-dose exposure were selected and a determination of the major causes of high-dose exposure made by plant-by-plant comparison of doses received during inspection works. The comparison was made to investigate the relationship between exposure and the volume of objects to be inspected, working time and man-hour of each work process and ambient dose rates at work areas. In parallel with this, an analysis has also been carried out on 400 data items in a questionnaire survey conducted on relevant individuals, including foremen, radiation safety personnel, on-site workers and plant designers regarding ideas for dose reduction methods. With combination of these two analyses, matters that require improvement will be highlighted, then modification of equipment or revision of work procedures necessary for occupational dose reduction will be planned by plant designers through review.

Original languageEnglish
Article numberncr136
Pages (from-to)133-135
Number of pages3
JournalRadiation protection dosimetry
Volume146
Issue number1-3
DOIs
Publication statusPublished - 2011 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health

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    Konno, T., Taira, J., Hayashida, T., Suzuki, A., Hayashi, K., Kato, S., Ishikawa, T., Konno, T., & Hayashi, K. (2011). Planning of occupational dose reduction at bwr power plant by past dose record analysis combined with on-site workers' idea analysis. Radiation protection dosimetry, 146(1-3), 133-135. [ncr136]. https://doi.org/10.1093/rpd/ncr136