Radioactive release during nuclear accidents in Chernobyl and Fukushima

Siti Nur Ain Sulaiman, Faizal K.P. Kunchi Mohamed, Ahmad Nabil Ab Rahim

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Nuclear accidents that occurred in Chernobyl and Fukushima have initiated many research interests to understand the cause and mechanism of radioactive release within reactor compound and to the environment. Common types of radionuclide release are the fission products from the irradiated fuel rod itself. In case of nuclear accident, the focus of monitoring will be mostly on the release of noble gases, I-131 and Cs-137. As these are the only accidents have been rated within International Nuclear Events Scale (INES) Level 7, the radioactive release to the environment was one of the critical insights to be monitored. It was estimated that the release of radioactive material to the atmosphere due to Fukushima accident was approximately 10% of the Chernobyl accident. By referring to the previous reports using computational code systems to model the release rate, the release activity of I-131 and Cs-137 in Chernobyl was significantly higher compare to Fukushima. The simulation code also showed that Chernobyl had higher release rate of both radionuclides on the day of accident. Other factors affecting the radioactive release for Fukushima and Chernobyl accidents such as the current reactor technology and safety measures are also compared for discussion.

Original languageEnglish
Article number012011
JournalIOP Conference Series: Materials Science and Engineering
Volume298
Issue number1
DOIs
Publication statusPublished - 12 Feb 2018
EventInternational Nuclear Science, Technology and Engineering Conference 2017, iNuSTEC 2017 - Kajang, Selangor, Malaysia
Duration: 25 Sep 201727 Sep 2017

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Accidents
Radioisotopes
Noble Gases
Radioactive materials
Fission products
Inert gases
Monitoring

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Radioactive release during nuclear accidents in Chernobyl and Fukushima. / Ain Sulaiman, Siti Nur; K.P. Kunchi Mohamed, Faizal; Ab Rahim, Ahmad Nabil.

In: IOP Conference Series: Materials Science and Engineering, Vol. 298, No. 1, 012011, 12.02.2018.

Research output: Contribution to journalConference article

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