212RA 216TH A DECAY (26.0 MS) 2000HE17,2005Ku31 20NDS 202009
212RA H TYP=FUL$AUT=K. Auranen and E.A. McCutchan$CIT=NDS 168, 117 (2020)$
212RA2 H CUT=1-Aug-2020$
212RA c 2000He17: {+216}Th activity from {+170}Er({+51}V,p4n){+216}Th and
212RA2c {+170}Er({+50}Ti,4n){+216}Th reactions with E({+51}V)=214-286 MeV and
212RA3c E({+50}Ti)=215-235 MeV. Recoil products separated with velocity
212RA4c filter SHIP and implanted into a position sensitive PIPS detector.
212RA5c Measured E|a, I|a, and recoil-|a.
212RA c 2005Ku31: the nuclei of interest were observed as the |a-decay
212RA2c daughter of {+216}Th nuclei produced in the
212RA3c {+170}Er({+50}Ti,4n){+216}Th fusion evaporation reaction at GSI,
212RA4c Germany. The 400-|mg/cm{+2} thick {+170}Eu targets were evaporated on
212RA5c 30-|mg/cm{+2} thick carbon foils. UNILAC provided the 217.5 MeV
212RA6c {+50}Ti beam with an intensity of |?200 pnA. Residues were selected
212RA7c with the velocity filter SHIP, and implanted into a
212RA8c position-sensitive 16-strip PIPS silicon detector. E|a, E|g, I|g,
212RA9c |a|g coin, recoil-|g-|a-|g correlations were measured. |g rays were
212RAac detected, without a coincidence condition, with a Clover Ge detector
212RAbc placed behind the PIPS.
212RA c Others: 2019Zh54, 2014Ya19, 2005Li17, 2001Ha46, 2000Ni02, 1968Va18
212RA cL E$From E|g.
212RA cL J$From the Adopted Levels.
212RA cA HF$r{-0}({+212}Ra)=1.4695 {I14} from HF(7921|a)=1.0.
212RA cG M$From the Adopted Gammas
212RA D CC$FROM BrIcc v2.3b (16-Dec-2014) 2008Ki07, "Frozen Orbitals" appr.
216TH P 0.0 0+ 26.0 MS 2 8072 4
216TH cP T$weighted average of 26.3 ms {I5} (2019Zh54), 26.0 ms {I2}
216TH2cP (2005Ku31), 25.4 ms {I8} (2001Ha46), and 28 ms {I2} (1968Va18).
216TH3cP Others: 29 ms {I+13-7} (2014Ya19), 30 ms {I9} (2005Li17), 22.0 ms
216TH4cP {I+16-14} (2000Ni02), 27.0 ms {I3}, 30 ms {I3} (2000He17) which is
216TH5cP assumed to be superseded by 2005Ku31
212RA N 1 1.0
212RA L 0.0 0+ 13.0 S 2
212RA cL T$from the Adopted Levels. Others: 9.9 s {I+46-24} (2014Ya19) and
212RA2cL 11.8 s {I+13-10} (2000Ni02).
212RA A 7921 5 99.6 1 1.000
212RA cA E$weighted average of 7921 keV {I8} (1968Va18), 7919 keV {I6}
212RA2cA (2001Ha46), 7923 keV {I5} (2005Ku31), and 7919 keV {I15} (2019Zh54).
212RA3cA Others: 7921 keV {I23} (2014Ya19), 7920 keV {I44} (2005Li17), and
212RA4cA 7923 keV {I10} (2000He17) assumed to be superseded by 2005Ku31.
212RA cA IA$from 2005Ku31. Other 99.46 {I3} (2000He17)
212RA L 629.3 1 2+
212RA G 629.3 1 0.39 10 E2 0.0230
212RAS G KC=0.01624 23$LC=0.00504 7$MC=0.001273 18$NC=0.000336 5$OC=7.43E-5 11$
212RAS G PC=1.208E-5 17$QC=5.78E-7 8
212RA cG E$from 2005Ku31. Other: 628.3 keV {I5} (2000He17).
212RA cG RI$deduced by the evaluator based on reported |a feeding and
212RA2cG internal-conversion coefficient
212RA A 7304 4 0.4 1 1.70 10
212RA cA E$from 2005Ku31. Other: 7302 keV {I15} (2000He17)
212RA cA IA$from 2005Ku31. Other: 0.54 {I3} (2000He17)