213RA 213RA IT DECAY (2.18 MS) 1976RA37,1994NE01,2006KU2622NDS 202203
213RA H TYP=FUL$AUT=M. S. Basunia$CIT=NDS 181, 475 (2022)$CUT=1-Jan-2022$
213RA c Others: 2004He25, 1993Ne04
213RA c 1976Ra37: The decay scheme is given as constructed by 1976Ra37.
213RA2c Measured |g|g coin.
213RA c 1994Ne01: Measured g factor for the 17/2- isomeric state using an
213RA2c indirect method that is the ratio of Korringa constant for two isomers
213RA3c is proportional to the inverse ratio of the respective g factors.
213RA c 2006Ku26: {+213}Ra isotope produced by {+48}Ca({+170}Er,5n), E=4.25,
213RA2c 4.30 MeV/nucleon, and {+50}Ti({+170}Er,X), 4.35 MeV/nucleon, reactions.
213RA3c Evaporation residues were separated in-flight with the velocity filter
213RA4c SHIP. Measured E|g, I|g, |g|g, ce, lifetimes using a 16-strip PIPS
213RA5c detector and a Ge-Clover detector placed behind the pips.
213RA c 2004He25: {+208}Pb({+12}C,7n), E=68-136 MeV; measured prompt and
213RA2c delayed E|g, I|g, |g|g-coin, (recoil)|g-coin;
213RA3c Deduced levels, spin, parity, half-life.
213RA c 1993Ne04: Determined the static-quadrupole-interaction frequency of the
213RA2c 17/2- isomeric state using level-mixing-spectroscopy (LEMS).
213RA c 2004He25: Measured half-life of the (17/2-) isomeric state.
213RA c
213RA t x-rays: 1976Ra37
213RA2t E(x ray) I|g(relative)
213RA3t --------- -------------
213RA4t 85.4 4.2 {I3} K|a{-2}| x ray
213RA5t 88.5 6.2 {I4} K|a{-1}| x ray
213RA6t 100.0 2.1 {I3} K|b{-1}'| x ray
213RA7t 103.0 0.7 {I2} K|b{-2}'| x ray
213RA cG E Measurements of 1976Ra37 (semi).
213RA cG RI Deduced by evaluator (see normalization comments) using
213RA2cG the I|g(rel) listed in comments.
213RA cG M$Proposed in 1976Ra37 based on |a(K)exp data.
213RA cL E From E|g, except where otherwise noted.
213RA dG CC$From BrIcc v2.3b (16-Dec-2014) 2008Ki07, "Frozen Orbitals" appr.
213RA P 1770 5 (17/2-) 2.18 MS 5
213RA N 1 0.994 4
213RA PN 1 3
213RA cN NR Absolute I|g deduced by the evaluator equating the total
213RA2cN transition intensity for each of the 546.35, 1062.5, and 160.87
213RA2cN cascading |g's to the 99.4 {I4} IT decay branching. Measured I|g used
213RA4cN to deduced the absolute intensities is listed in the comments.
213RA L 0.0 1/2- 2.73 M 5
213RA cL J,T From Adopted Levels.
213RA L 546.35 5 (5/2-) 21.5 PS 28
213RA cL T From Adopted Levels.
213RA cL J 546.35|g E2 to 1/2- state.
213RA G 546.35 5 93.0 11 E2 0.0315 C
213RA2 G EKC=0.02 1 (1976Ra37)
213RA2 G EKC=0.024 9 (2006Ku26)
213RAS G KC=0.0212 3$LC=0.00763 11$MC=0.00195 3
213RAS G NC=0.000513 8$OC=0.0001131 16$PC=1.82E-5 3$QC=7.70E-7 11
213RA cG E$Others: 545.4 {I5} (2004He25), 546.2 {I1} (2006Ku26)
213RA cG $I|g(rel)=100.4 {I12}: Weighted average of 104 {I3} (1976Ra37)
213RA2cG and 100 {I1} (2006Ku26).
213RA L 1608.85 21(9/2-)
213RA cL J 1062.5|g (E2) to (5/2-) state.
213RA G 1062.5 2 98.4 27 (E2) 0.00802 C
213RA2 G EKC=0.005 10 (1976Ra37)
213RA2 G EKC=0.014 9 (2006Ku26)
213RAS G KC=0.00624 9$LC=0.001342 19$MC=0.000327 5
213RAS G NC=8.61E-5 12$OC=1.94E-5 3$PC=3.27E-6 5$QC=2.11E-7 3
213RA cG E$Others: 1061.2 {I5} (2004He25), 1062.1 {I1} (2006Ku26)
213RA cG $I|g(rel)=99.4 {I27}: Weighted average of 100 {I3} (1976Ra37)
213RA2cG and 97 {I6} (2006Ku26).
213RA L 1769.72 22 (13/2-)
213RA cL J 160.8|g E2 to (9/2-) state requires (13/2-), in 1976Ra37 J|p
213RA2cL is given as (13/2-,11/2-).
213RA G 160.87 5 42.2 24 E2 1.328 C
213RA2 G EKC=0.25 2 (1976Ra37)
213RA2 G EKC=0.26 6 (2006Ku26)
213RAS G KC=0.237 4$LC=0.802 12$MC=0.217 3
213RAS G NC=0.0575 8$OC=0.01227 18$PC=0.00180 3$QC=1.314E-5 19
213RA cG E$Others: 160.4 {I5} (2004He25), 161.2 {I1} (2006Ku26). In 1976Ra37, a
213RA2cG transition |?161|g was shown in Fig. 7 to feed the level at 1608.85
213RA3cG (9/2-), but argued it would not depopulate the isomeric state
213RA4cG (J{+|p}=(17/2-)) as an E2 transition.
213RA cG $I|g(rel)=43.5 {I25}: Weighted average of 46 {I2} (1976Ra37)
213RA2cG and 41 {I2} (2006Ku26).
213RA L 1770 5 (17/2-) 2.18 MS 5 M1
213RA2 L %A=0.6 4
213RA cL E From 1770 {I+5-1} (2006Ku26). Others: |?1770 (1976Ra37), 1769
213RA2cL {I7} can be deduced considering E|a=8467 {I5} and E|a=6731 {I5}
213RA3cL (1976Ra37) from the isomeric level and g.s. {+213}Ra |a decay,
213RA4cL respectively, to the g.s. of {+209}Rn.
213RA cL J Measured g=0.87 {I5} (1994Ne01) value supports the
213RA2cL configuration [(|p1h{+2}{-9/2}){-8+}~#(|n3p{+-1}{-1/2})]{-17/2-} for
213RA3cL which the calculated magnetic moment, 7.672 {I33}, is in good
213RA4cL agreement with the measured g value (1994Ne01).
213RA cL T Weighted average of 2.1 ms {I1} (1976Ra37), 2.20 ms {I5}
213RA2cL (2006Ku26), and 2.2 ms {I1} (545.4|g) (2004He25) - uncertainty is the
213RA3cL lowest input value. 2004He25 also reported
213RA4cL two more values of 2.1 ms {I1} (1061.2|g) and 2.1 ms {I1} (160.4|g).
213RA5cL All three values determined by 2004He25 from the decrease of |g-ray
213RA6cL intensities within the 14.6 ms pause between two consecutive beam
213RA7cL bursts.
213RA cL %A 0.6 {I4} (2006Ku26) and 0.6 (1976Ra37 - also |?1).
213RA G 6 LT [E2] S
213RA2 G FL=1769.72
213RA cG E$ From level scheme.