228RA 232TH A DECAY 1983MI30,1989SA01 14NDS 201403 228RA H TYP=FUL$AUT=KHALIFEH ABUSALEEM$CIT=NDS 116, 163 (2014)$CUT=31-Dec-2012$ 232TH P 0 0+ 14.0E+9 Y 1 4081.6 14 228RA N 1.0 1.0 228RA PN 3 228RA cN NR I|g data are per 100 |a decays 228RA c 1989Sa01: Spectra were collected from around 250 |mg/cm{+2}, Th source 228RA2c for around 80 hours. Anion-exchange separation method was used to 228RA3c purify Thorium isotopes ({+228,232}Th) in order to minimize the 228RA4c background due to decay of the daughters. The solution was periodically 228RA5c purified to minimize the background from the decay of {+228}Th. |g- 228RA6c spectrum was recorded using HPGe and planar Ge detectors, |a-spectrum 228RA7c was recorded with Si surface barrier detector. 228RA c 1983Mi30: Measured E{-|g}, I{-|g}, deduced |a-branching ratio and 228RA2c levels 228RA cL J From adopted levels 228RA cL E From E|g 228RA cA E From 1989Sa01, unless otherwise noted 228RA cA IA From I(|g+ce) imbalance at each level based on absolute I|g 228RA2cA data. A 3% uncertainty in the theoretical |a values has been adopted 228RA3cA by the evaluator for the calculation of I(|g+ce). 228RA cA HF HF(4012.3|a)=1.00 yields r{-0}({+228}Ra)=1.5359 {I14} 228RA cG E$From 1983Mi30 228RA cG M From adopted |g's 228RA L 0 0+ 228RA A 4012.3 14 78.2 13 1.00 228RA cA E other: 4013 {I3} (1991Ry01, based on 1957Ha08, 1961Ko11, 228RAxcA 1962Ko12) 228RA cA IA from I|a(3947), I|a(3811), and sum I|a=100% 228RA L 63.810 10 2+ 0.55 NS 4 228RA cL T from (|a)(ce)(t) (1960Be25) 228RA A 3947.2 20 21.7 13 0.98 6 228RA cA E other: 3950 {I8} (1991Ry01, based on 1961Ko11) 228RA cA IA direct measurements: 23 {I3} (1991Ry01, based on 1961Ko11), 228RA2cA also 26 {I4} from I|a(to 64 level)/I|a(to g.s.)=0.33 {I5} (1989Sa01), 228RA3cA 23 {I2} (1959Ko58), 22 {I2} (1956Al30), 24 {I3} (1952Du12) 228RA G 63.81 1 0.263 13 E2 82.0 228RAS G LC=59.92 5$MC=16.22 3$NC+=5.824 5 228RA cG E$others: 63.81 {I7} (1973Ta25 assigned to {+232}Th by evaluator), 228RA2cG 63.84 {I6} (1989Sa01) 228RA cG RI from 1983Ro23 relative to I|g(84.4|g in {+224}Ra)=1.248 {I29} 228RA2cG (1984Ge07) (the values given in 1983Ro23 are for I(84.4|g)=1.21% {I6}). 228RA3cG Others: 0.24 {I3} (1983Mi30), 0.29 {I2} (1982Sa36) relative to I(238|g 228RA4cG in {+212}Bi)=43.0% {I20}. 228RA L 204.690 15 4+ 228RA A 3811.1 14 0.069 13 16 3 228RA cA E from E|a to g.s. and E(level) 228RA cA IA 1959Ko58 report 0.20 {I8} 228RA G 140.88 1 0.021 4 E2 2.30 228RA cG E$other: 140.83 {I15} (1989Sa01) 228RA cG RI$from I|g(141)/I|g(64)=0.078 {I14}. The ratio is a weighted 228RA2cG average of 0.055 {I10} (1989Sa01), 0.075 {I13} (1983Mi30), 0.103 {I3} 228RAxcG (1983Ro23) 228RAS G KC=0.287$LC=1.47$MC=0.399$NC+=0.145