A radiation protection glossary for Radiation Protection Supervisors (RPS), Radiation Protection Advisers (RPA) and anyone else interesting in radiation safety terms and definitions. The glossary is a mixture of health physics , phrases related to radiation protection legislation, transport, practical safety, technical terms and similar.
Search the Glossary by either clicking on a letter or typing a keyword into the search box. This glossary is relational so when looking at one term you can click through to other related terms as required.
Published: Oct 26, 2023
Simply stated, the HVT is the thickness of a radiation shield that will reduce radiation gamma / x-ray dose rate (or dose) to 1/2 of the of the pre-shielded value. There are a number of factors that will potentially interfere with this approach, but HVT is still a good approximation in many cases.
HVT is related to TVT by the expression 3.32 HVT = 1 TVT. Head over to the TVT resource for a fuller explanation of this concept.
Atoms are very special: they like certain particular partners, certain particular directions, and so on. It is the job of physics to analyze why each one wants what it wants.