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 July 2026To Health Physics Society (HPS) chapter officers, I will be taking office in July as HPS president-elect. I am open […]
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15 July 2026
Nominate an HPS Member for the IRPA Rolf Sievert Award
One highlight of each International Radiation Protection Association (IRPA) International Congress is the Rolf Sievert Award. The Sievert Awardee is […] -
15 July 2026
HPS Summer Science Teacher Workshop
The Science Support Committee of the Health Physics Society (HPS) will once again host its Summer Science Teacher Workshop, a […] -
13 July 2026
HPS 2026 Annual Members Meeting Report
The 2026 Health Physics Society (HPS) Members Meeting was held 8 July 2026 at the 71st HPS Annual Meeting in […] -
13 July 2026
HPS Members Encouraged to Comment on NRC Rulemaking Revision
The Nuclear Regulatory Commission (NRC) is releasing a number of significant rulemakings for public comment over the next several months, […] -
13 July 2026
HPS-NCRP-AAHP-AAPM-CRCPD* Webinar on Executive Orders Related to Radiation Protection
Moderators: Dr. Emily Caffrey, CHP, and Dr. Charles Wilson, CHP The Health Physics Society (HPS), jointly with the National Council […]
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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.










