Advanced Physics for Brachytherapy 2018

All Authorities Agree on Correct Unit

(1974) NCRP Report 41

(1983) French Cmte on ionizing Radiation Measurements

(1984) British Cmte on Radiation Units and Measurements

(1985) ICRU Report 38: Dose and volume specification for reporting intracavitary therapy in gynecology

(1987) AAPM TG-32: Specification of brachytherapy source strength

(1997) ICRU Report 58: Dose and volume specification for reporting interstitial brachytherapy

(2004) ESTRO Booklet 8: A practical guide to quality control of brachytherapy equipment

etc., etc., etc.

ICRU, GEC-ESTRO, and AAPM explicitly recommend against A app