Dr BK Sahoo

About

Dr. Bijay Kumar Sahoo is currently serving as a Scientific Officer (G) and Group Leader of the Radon Group in the Radiological Physics & Advisory Division at the Bhabha Atomic Research Centre (BARC) and Associate Professor, Homi Bhabha National Institute, India. He joined BARC after graduating from the 48th batch of the BARC Training School in 2004. Dr. Sahoo holds an M.Sc. in Physics from Utkal University, Odisha, and a PhD in Physics from Homi Bhabha National Institute, Mumbai, India.

With over 200 publications in international peer-reviewed journals, 2,700 citations, h-index of 28, Dr. Sahoo has made significant contributions to his field. He was awarded the Young Applied Scientist and Technologist Award in 2009 and the Group Achievement Award in 2014 by the Department of Atomic Energy (DAE), Government of India. He has served as the principal collaborator on several DAE-BRNS projects, including the National Radon Project. Dr. Sahoo is an expert member representing India in the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) for the public exposure project. He has contributed to the IAEA’s Technical Report Series 474 and UNSCEAR’s 2024 report. Additionally, he reviews for numerous peer-reviewed journals.

**Areas of Expertise**
- Instrumentation for Radon and Thoron
- Radon-Thoron monitoring in air, water, and soil
- Occupational and ambient dosimetry
- Modeling Radon-Thoron transport in porous media
- Radon as an earthquake precursor
- Techniques for Uranium and Thorium exploration

**Products Designed and Developed**
- Pinhole dosimeter
- Smart Radon Monitor (SRM)
- Smart Thoron Monitor (STM)
- Smart Radon-Thoron Monitor (RnDuo)
- Bhabha Radon Observatory for Seismic Application (BhaROSA)
- Indian Network for Detection of Radon Anomaly for Seismic Application (INDRA-SA)
- Various models for Radon Exhalation and Indoor Radon Prediction

Employment

• Homi Bhabha National Institute Associate Professor
  2025 - Present
• Bhabha Atomic Research Centre
  2004 - Present

Education

• Utkal University MSc
  2002 - 2004

Projects & Funding

Projects & funding information is unavailable.

Publications (257)

• Assessment of exhalation rates of the soil and dispersed radon in groundwater in the Bengaluru district
  Applied Radiation and Isotopes 2026 DOI: 10.1016/j.apradiso.2026.112920
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• Amplification of seismic stress–induced radon fluxes near surface seals: Application to earthquake precursor detection
  Journal of Environmental Radioactivity 2026 DOI: 10.1016/j.jenvrad.2026.108057
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• Assessment of exhalation rates of the soil and dispersed radon in groundwater in the Bengaluru district
  2026 DOI: 10.2139/ssrn.7076151
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• The Indian Network for Detecting Radon Anomaly signal for Seismic Application
  Journal of Environmental Radioactivity 2025 DOI: 10.1016/j.jenvrad.2025.107761
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• Thoron exhalation rate measurement – findings from a large worldwide intercomparison study
  Radiation Measurements 2025 DOI: 10.1016/j.radmeas.2025.107471
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• A persistent radon anomaly signal preceding the destructive 7.7 Mw earthquake in Myanmar on March 28, 2025
  Scientific Reports 2025 DOI: 10.1038/s41598-025-10632-8
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• Characterizing interplanetary magnetic field fluctuations at arctic using cosmic ray secondaries–An approach with machine learning
  Astroparticle Physics 2025 DOI: 10.1016/j.astropartphys.2025.103087
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• International intercomparison and quality assessment of passive and active 222Rn measuring devices in the Asia-Pacific region
  Radiation Measurements 2024 DOI: 10.1016/j.radmeas.2024.107295
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• A sensitive system based on radon amplification at soil-air interface: Aiming to advance earthquake precursor research
  Journal of Environmental Radioactivity 2024 DOI: 10.1016/j.jenvrad.2024.107482
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• Investigation of background radiation levels and environmental radioactivity around Bharati Station, Larsemann Hills in east Antarctica-an overview
  Polar Science 2024 DOI: 10.1016/j.polar.2024.101044
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