Undoped Polycarbonate for Detection of Environmental Radiation

• NAKAMURA Hidehito

  Kyoto University National Institute of Radiological Sciences

• SHIRAKAWA Yoshiyuki

  National Institute of Radiological Sciences

• KITAMURA Hisashi

  National Institute of Radiological Sciences

• SATO Nobuhiro

  Kyoto University

• TAKAHASHI Sentaro

  Kyoto University

抄録

The enormous area of damage to Japan's Fukushima Daiichi nuclear power plant requires radiation detectors with robust base substrates to monitor high-dose-rate environmental radiation with long-term stability. Undoped aromatic ring polymers have considerable potential as base substrates in radiation detection. Here, we characterise polycarbonate (PC), which has excellent transparency, shock, radiation, and weather resistance, heat tolerance, and anti-abrasion qualities. It has a density of 1.20 g/cm³, an excitation maximum of 310 nm, and short-wavelength emission with a maximum at 350-nm. By taking into account its emission spectrum, we determined an effective refractive index of 1.64. PC has a light yield that is 0.67 times that of undoped poly (ethylene terephthalate). These results reveal that readily available PC is an effective base substrate for use in large-area radiation detectors for the nuclear power plant recovery process.

収録刊行物

• 保健物理

  保健物理 49 (2), 98-101, 2014

  日本保健物理学会

キーワード

• environmental radiation
• radiation protection
• huge-area radiation detector
• high dose rate
• aromatic ring polymer

詳細情報

• CRID: 1390282679266258304
• NII論文ID: 130005071012
• NII書誌ID: AN00228458
• DOI: 10.5453/jhps.49.98
• ISSN: 18847560
• ISSN: 03676110
• NDL書誌ID: 025775209
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025775209
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可