204RN 208RA A DECAY 10NDS 201002 204RN H TYP=FUL$AUT=C.J. CHIARA and F.G. KONDEV$CIT=NDS 111,141 (2010)$ 204RN2 H CUT=1-Oct-2009$ 204RN C ALPHA branching for 208RA was adopted as 95% 5 by 2007Ma45 from 204RN2C estimated EC branching of AP 5% based on gross BETA decay theory 204RN3C calculations by 1973Ta30. The partial BETA half-life was calculated by 204RN2C 1997Mo25 as 23.8055 S which gives %EC+%B+=5.46. 204RN CA HF$ R0(204RN)=1.496 8 is calculated from HF(7133A)=1.0. 204RN2CA This value fits the local R0 trend where R0=1.50 1 is obtained. 208RA P 0.0 0+ 1.3 S 2 7273 5 204RN N 0.95 5 204RN L 0.0 0+ 204RN A 7133 5 100 1.000 204RN CA E$ Recommended by 1991Ry01.