Radiation Protection Glossary

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.

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Ambient dose equivalent

Published: Aug 26, 2024

    Tags:
  • Ambient dose equivalent
  • equivalent dose
  • effective dose

The formal definition of Ambient dose equivalent, H*(d), can be defined thus: 'the dose equivalent that would be produced by the corresponding expanded and aligned field at a depth d in the ICRU sphere, on the radius opposing the direction of the aligned field'. Generally H*(d), which can be specified as H*(10) for 'at depth' (10 mm) exposure to photons, can be used as a reasonable surrogate for effective dose (E) and can be measured using suitable radiation monitors. 

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