10 June 2025
Join an HPS Committee or Task Force
Each year at the Health Physics Society (HPS) annual meeting there are a large number of volunteers who have served […]
Ask the Experts
Get answers to your radiation-related questions from the Health Physics
Society’s panel of radiation safety experts.
Become a Member
Join the Health Physics Society to access exclusive publications, helpful
tools, and many other benefits.
Health Physics
The official journal of the Health Physics Society, providing the latest
research for radiation safety professionals.
HPS Annual Meeting
Come to Madison, Wisconsin, for the 70th Health Physics Society Annual
Meeting, 13-17 June 2025.
The 2025 HPS raffle is open!
Win an amazing Hyundai Ioniq 5 or a bunch of cash!
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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10 June 2025
We're Counting the Days to the Madison Meeting
We’re within one month of the 70th Annual Meeting of the Health Physics Society (HPS). If you haven’t registered, now […] -
10 June 2025
Decommissioning Section News
The Decommissioning Section will be conducting presentations related to decontamination and decommissioning at the 70th Health Physics Society (HPS) Annual […] -
10 June 2025
HPS on MotherToBaby Podcast
We are pleased to share our latest MotherToBaby Podcast, episode #85, “Radiation & Breastfeeding: Understanding the Risks and Realities,” now […] -
10 June 2025
Calling All HPS Members – Join the Public Information Committee!
Are you passionate about increasing public awareness of health physics and the safe use of ionizing radiation? The Health Physics […] -
30 May 2025
HPS-NCRP* 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 […]
Join the Health Physics Society
Enjoy exclusive benefits, resources, and networking opportunities.
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.