Kazuki Iwaoka

Summary

Affiliation: National Institute of Radiological Sciences
Country: Japan

Publications

  1. doi request reprint Activity concentration of natural radioactive nuclides in nonmetallic industrial raw materials in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan Institute of Radiation Emergency Medicine, Hirosaki University, 66 1 Honcho, Hirosaki, Aomori 036 8564, Japan Electronic address
    J Environ Radioact 137:130-6. 2014
  2. doi request reprint Occupational exposure to natural radiation in zirconium refractory plants in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Health Phys 104:151-7. 2013
  3. doi request reprint Database of the radioactivity of norm used as industrial raw materials
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Radiat Prot Dosimetry 152:444-9. 2012
  4. doi request reprint Activity concentration of natural radionuclides and radon and thoron exhalation rates in rocks used as decorative wall coverings in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Health Phys 104:41-50. 2013
  5. doi request reprint Measurement of natural radioactive nuclide concentrations in various metal ores used as industrial raw materials in Japan and estimation of dose received by workers handling them
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba 263 8555, Japan
    J Environ Radioact 100:993-7. 2009
  6. doi request reprint Natural radioactivities in iron and nickel ores imported into Japan and the dose assessment for workers handling them
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba, Japan
    J Radiol Prot 30:613-20. 2010
  7. doi request reprint Characteristic of thoron (220Rn) in environment
    Masahiro Hosoda
    Hirosaki University Graduate School of Health Science, 66 1 Hon cho, Hirosaki, Aomori 036 8564, Japan
    Appl Radiat Isot 120:7-10. 2016
  8. pmc A comparison of the dose from natural radionuclides and artificial radionuclides after the Fukushima nuclear accident
    Masahiro Hosoda
    Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66 1 Honcho, Hirosaki, 036 8564, Japan
    J Radiat Res 57:422-30. 2016
  9. ncbi request reprint Continuous measurements of bronchial exposure induced by radon decay products during inhalation
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Rev Sci Instrum 78:093301. 2007
  10. doi request reprint Measurement system for alpha and beta emitters with continuous air sampling under different exposure situations
    Ryohei Yamada
    Hirosaki University Graduate School of Health Sciences, 66 1 Honcho, Hirosaki, Aomori 036 8564, Japan
    Appl Radiat Isot . 2017

Collaborators

  • Keiko Tagami
  • Naofumi Akata
  • Yuji Yamada
  • Masahiro Hosoda
  • Ryohei Yamada
  • Shinji Tokonami
  • Yuki Tamakuma
  • Yoshitaka Shiroma
  • Kouji Yamada
  • Hiroyuki Mizuno
  • Tomohiro Kuroki
  • Takahito Suzuki
  • Tetsuo Ishikawa
  • Hiromi Kudo
  • Yasutaka Omori

Detail Information

Publications10

  1. doi request reprint Activity concentration of natural radioactive nuclides in nonmetallic industrial raw materials in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan Institute of Radiation Emergency Medicine, Hirosaki University, 66 1 Honcho, Hirosaki, Aomori 036 8564, Japan Electronic address
    J Environ Radioact 137:130-6. 2014
    ..The maximum estimated effective dose to workers handling these materials was 0.16 mSv y(-1), which was lower than the reference level (1-20 mSv y(-1)) for existing situation given in the ICRP Publ.103. ..
  2. doi request reprint Occupational exposure to natural radiation in zirconium refractory plants in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Health Phys 104:151-7. 2013
    ..The maximum value of the effective dose to workers was 430 μSv y(-1), which was lower than the intervention exemption level (1,000 μSv y(-1)) specified in ICRP Publication 82...
  3. doi request reprint Database of the radioactivity of norm used as industrial raw materials
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Radiat Prot Dosimetry 152:444-9. 2012
    ..The database provides more than 900 activity concentrations in worldwide NORMs at no fee. (NORM database; http://www.nirs.go.jp/db/anzendb/NORMDB/ENG/index.php)...
  4. doi request reprint Activity concentration of natural radionuclides and radon and thoron exhalation rates in rocks used as decorative wall coverings in Japan
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Health Phys 104:41-50. 2013
    ..The maximum value of effective doses to inhabitants was 0.68 mSv y, which is lower than the intervention exemption level (1 mSv y) given in the International Commission on Radiological Protection (ICRP) Publication 82...
  5. doi request reprint Measurement of natural radioactive nuclide concentrations in various metal ores used as industrial raw materials in Japan and estimation of dose received by workers handling them
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba 263 8555, Japan
    J Environ Radioact 100:993-7. 2009
    ..5 x 10(-4)Sv y(-1), which was lower than intervention exemption levels (1.0 x 10(-3)Sv y(-1)) given in International Commission of Radiological Protection (ICRP) Publication 82...
  6. doi request reprint Natural radioactivities in iron and nickel ores imported into Japan and the dose assessment for workers handling them
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba, Japan
    J Radiol Prot 30:613-20. 2010
    ..8 × 10(-6) Sv, which was lower than intervention exemption levels (annual dose 1.0 × 10(-3) Sv) given in International Commission on Radiological Protection (ICRP) Publication 82...
  7. doi request reprint Characteristic of thoron (220Rn) in environment
    Masahiro Hosoda
    Hirosaki University Graduate School of Health Science, 66 1 Hon cho, Hirosaki, Aomori 036 8564, Japan
    Appl Radiat Isot 120:7-10. 2016
    ..Thus, the thoron progeny measurement should be investigated at each measurement point for the dose estimation for thoron...
  8. pmc A comparison of the dose from natural radionuclides and artificial radionuclides after the Fukushima nuclear accident
    Masahiro Hosoda
    Department of Radiological Life Sciences, Division of Medical Life Sciences, Hirosaki University Graduate School of Health Sciences, 66 1 Honcho, Hirosaki, 036 8564, Japan
    J Radiat Res 57:422-30. 2016
    ..0 mSv. Although residents' internal and external exposures due to natural radionuclides cannot be avoided, it might be possible to lower external exposure due to the artificial radionuclides by changing some behaviors of residents. ..
  9. ncbi request reprint Continuous measurements of bronchial exposure induced by radon decay products during inhalation
    Kazuki Iwaoka
    Research Center for Radiation Protection, National Institute of Radiological Sciences, 4 9 1 Anagawa, Inage, Chiba 263 8555, Japan
    Rev Sci Instrum 78:093301. 2007
    ..This results indicate that the CBD gave a good response to changes in the environment. It was found that the ratio of N and TB deposition also varied with time in each actual environment...
  10. doi request reprint Measurement system for alpha and beta emitters with continuous air sampling under different exposure situations
    Ryohei Yamada
    Hirosaki University Graduate School of Health Sciences, 66 1 Honcho, Hirosaki, Aomori 036 8564, Japan
    Appl Radiat Isot . 2017
    ....