About Us
The Health Physics Society (HPS), formed in 1956, is a scientific organization of professionals who specialize in radiation safety. Its mission is to support its members in the practice of their profession and to promote excellence in the science and practice of radiation safety.
Health Physics News
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15 April 2026We are excited to announce another year of CHP Study Group! Like last year, we will be offering 10 study […]
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15 April 2026
Become a Sponsor or Exhibitor at the 71st HPS Annual Meeting
Sponsorship and exhibit sales for the 71st Health Physics Society Annual Meeting are now open. The meeting will be held […] -
13 April 2026
2025 Michael T. Ryan Outstanding Paper of the Year Award
The Editorial Board of the Health Physics journal has selected the paper “A Novel Shielding Device for Cardiac Cath Labs” […] -
13 April 2026
HPS Mentorship Committee Webinar: Important Radiation Biology Concepts for Radiation Protection
The Health Physics Society (HPS) Mentorship Committee is happy to continue its online virtual educational webinar series with the free […] -
13 April 2026
Central Rocky Mountain Chapter March Meeting and Seminar
The Central Rocky Mountain Chapter of the Health Physics Society (CRMCHPS) had the radiation safety officer from Helion, Devin Mussell, […] -
13 April 2026
US Hosts International Meetings of ISO/TC 85 in August 2026: Sponsors Needed
The International Organization for Standardization (ISO) is a federation of national standards bodies. US participation in ISO is through accredited […]
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Decay Calculator
This Web application will allow you to calculate the activity of a radionuclide after a specified interval of time. The list of radionuclides excludes those with half lives measured in seconds.










