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STUDY OF EFFECTIVENESS OF SHELTERING FROM RADIATION EXPOSURE DUE TO ACCIDENTAL RELEASE OF RADIOACTIVITY.

Ashish Kumar Singh1,2, Riya Dey1,2, U V Deokar1

  • 1Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.

Radiation Protection Dosimetry
|June 17, 2022
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Summary
This summary is machine-generated.

Sheltering in Indian houses significantly reduces radiation exposure from external and inhalation pathways during radiological emergencies. This study quanties the shielding effectiveness for informed public safety decisions.

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Area of Science:

  • Radiation protection
  • Environmental safety
  • Nuclear emergency preparedness

Background:

  • Sheltering is a crucial protective action during radiological accidents.
  • Structural shielding minimizes exposure from airborne and ground radiation.
  • Accurate shielding factors are vital for emergency response planning.

Purpose of the Study:

  • To estimate the shielding factor for Indian houses against external radiation exposure.
  • To assess the dose reduction factor for inhalation pathways indoors.
  • To provide data for effective sheltering or evacuation decisions.

Main Methods:

  • Utilized FLUKA Monte Carlo code for radiation transport simulation.
  • Employed an indoor aerosol model to estimate inhalation dose reduction.
  • Evaluated shielding for three major Indian dwelling types.

Main Results:

  • Quantified shielding factors for external exposure pathways.
  • Determined dose reduction factors for inhalation exposure.
  • Differentiated effectiveness across various housing structures.

Conclusions:

  • Indian house structures offer significant radiation shielding.
  • Estimated factors are crucial for optimizing emergency response strategies.
  • Findings support informed decision-making during radionuclide release events.