212AT 216FR A DECAY (0.70 US) 1996LI37 20NDS 202009
212AT H TYP=FUL$AUT=K. Auranen and E.A. McCutchan$CIT=NDS 168, 117 (2020)$
212AT2 H CUT=1-Aug-2020$
212AT c 1996Li37: {+216}Fr activity was measured in secular equilibrium with
212AT2c {+224}Pa(T{-1/2}=0.8 s) and {+220}Ac(T{-1/2}=26 ms). {+224}Pa was
212AT3c produced by {+209}Bi({+18}O, 3n), E=96 MeV. Measured |a particles, |g
212AT4c rays, |a|g coin, conversion electrons, |a-ce and |a-|g-ce coin.
212AT5c Detectors not given. However, |a- and |g-ray spectra suggest that
212AT6c Si(Au) surface barrier and germanium detectors, respectively, were
212AT7c used.
212AT c Others: 2003Ni10, 2007Ku30
212AT cL E$From E|g.
212AT cL J,T$From the Adopted Levels
212AT cG E$From 1996Li37.
212AT cG M$From the Adopted Gammas. For cases where values are derived from
212AT2cG this dataset, additional support is given in the comments.
212AT cA E,IA$From 1996Li37
212AT cA HF$Using r{-0}({+212}At)=1.5522 {I49}, average of
212AT2cA r{-0}({+214}Rn)=1.5655 {I13}, r{-0}({+212}Rn)=1.5433 {I36},
212AT3cA r{-0}({+212}Po)=1.5658 {I59}, and r{-0}({+210}Po)=1.5340 {I25}
212AT4cA (2020Si16).
212AT cA IA$Intensities are given in 1996Li37 as normalized to 100 total
212AT2cA decays from both the 1-, 0.70 |ms g.s and the 133-keV, 71 ns isomer
212AT3cA measured in equilibrium with the {+220}Ac parent. Evaluators have
212AT4cA renormalized the intensities here to be for 100 decays of the ground
212AT5cA state; original values from 1996Li37 given in the comments.
212AT D CC$FROM BrIcc v2.3b (16-Dec-2014) 2008Ki07, "Frozen Orbitals" appr.
216FR P 0.0 (1-) 0.70 US 2 9174 3
216FR cP T$from 1970Bo13
212AT N 1.0 1.0
212AT cN NR$gamma-ray intensities deduce by evaluators from measured absolute
212AT2cN |a intensities and |g feedings
212AT PN 3
212AT L 0.0 (1-) 0.314 S 3
212AT A 9004 5 99 1 1.65 11
212AT cA E$others: 9005 keV {I12} (1970Bo13), 9004 keV {I5} (2007Ku30)
212AT cA IA$reported as 99 {I1} for 100 total decays from both the 1-, 0.70
212AT2cA |ms g.s and the 133-keV, 71 ns isomer measured in equilibrium with
212AT3cA the {+220}Ac parent (1996Li37)
212AT L 160.3 1 (2-)
212AT G 160.3 1 0.17 5 M1 3.16
212ATS G KC=2.56 4$LC=0.457 7$MC=0.1083 16$NC=0.0281 4$OC=0.00601 9$
212ATS G PC=0.000830 12
212AT cG M$K| x ray/I|g(160.3|g)=3 {I1} (1996Li37)
212AT cG RI$deduced by evaluators from measured |a and |g feeding.
212AT A 8861 150.5 2 135 55
212AT cA E$observed in coincidence with 160.3|g
212AT cA IA$reported as 0.5 {I2} for 100 total decays from both the 1-, 0.70
212AT2cA |ms g.s and the 133-keV, 71 ns isomer measured in equilibrium with
212AT3cA the {+220}Ac parent (1996Li37)
212AT L 205.3 2 (3-)
212AT G 45.0 1 0.008 AP M1 24.0
212ATS G LC=18.2 3$MC=4.32 7$NC=1.120 18$OC=0.240 4$PC=0.0331 6
212AT cG RI$deduced by evaluators from measured |a feeding.
212AT A 8811 150.2 AP263 AP
212AT cA E$observed in coincidence with 45.0|g.
212AT cA IA$reported as |? 0.2 for 100 total decays from both the 1-, 0.70
212AT2cA |ms g.s and the 133-keV, 71 ns isomer measured in equilibrium with
212AT3cA the {+220}Ac parent (1996Li37)