191PB 195PO A DECAY (4.64 S) 2010CO13,1993WA04,1967SI0924NDS 202403
191PB H TYP=FUL$AUT=M.S. Basunia$CIT=NDS 195, 368 (2024)$CUT=1-Dec-2023$
191PB c Others: 2002Va13, 2005Uu02, 1982LeZN, 1967Tr06
191PB c 2010Co13: Source produced by bombarding UCx target (50 g/cm{+2}) with
191PB2c the proton pulsed beam. Nuclei produced in the spallation reaction
191PB3c diffused, effused to the high-temperature RILIS ion source cavity.
191PB4c Polonium atoms were irradiated with three different laser beams
191PB5c and extracted from the ion source cavity, accelerated
191PB6c by dc electrical fields to an energy of 50 keV and mass separated in
191PB7c the ISOLDE separator. In Run I, a single Si detector in Run II,
191PB8c two Si detectors (FWHM = 25 keV, 20 keV and 30 keV, respectively for
191PB9c 5500|a), an HPGe detector (FWHM=4.3 keV at E|g=1300 keV). Measured
191PBac E|a, I|a, E|g, |a|g, |g|a, |g|g coin, half-life of {+195}Po, deduced
191PBbc excited levels, spin-parity. Also studied {+191}Bi |e decay.
191PB c 1993Wa04: Source was produced <240-MeV Ne on {+182}W reaction. The
191PB2c mass-separated beam was implanted in aluminized mylar tape. Silicon
191PB3c surface-barrier detectors and silicon PIPS-type (Passivated Implanted
191PB4c Planar Silicon) detectors with energy resolution between 11-20 keV for
191PB5c the 5486|a of {+241}Am. Measured E|a, I|a, half-life of {+195}Po.
191PB c 1967Si09: Source was produced from the {+185}Re({+19}F,X) reaction.
191PB2c Measured E|a, {+195}Po half-life.
195PO P 0.0 3/2(-) 4.64 S 9 6749.7 28
195PO cP J From favored |a decay (HF=1.72 {I9}) to the 3/2{+(-)} g.s. of
195PO2cP {+191}Pb.
195PO cP T From 1993Wa04. Others: 4.5 s {I5} (1967Si09), 3.9 s {I+32-12}
195PO2cP (2005Uu02).
191PB N 0.94 4
191PB PN 5
191PB cN BR From 2010Co13, based on the assumption that the {+195}Po |e
191PB2cN decay only populates the J{+|p}=(1/2+) state in {+195}Bi.
191PB cA HF Using r{-0}({+191}Pb)=1.512 {i3}, obtained from the r{-0} of
191PB2cA neighboring even-even isotopes, r{-0}({+190}Pb)=1.5113 {i39}
191PB3cA and r{-0}({+192}Pb)=1.5126 {i28} (2020Si16).
191PB cA IA From 2010Co13
191PB cG E,RI From 2010Co13
191PB cL E From E|g
191PB L 0.0 3/2(-) 1.33 M 8
191PB cL J,T From Adopted Levels
191PB A 6611 4 99.56 2 1.72 9
191PB cA E Weighted average of 6606 keV {i5} (1993Wa04) and 6606 keV
191PB2cA {i10} (2002Va13), 6617 keV {I6} (2005Uu02), 6624 keV {I8} (1967Si09),
191PB3cA and 6608 keV {I5} (1967Tr06). Other: 6610 keV (1982LeZN - Fig. 1).
191PB cA IA Other: 99.8 {I35} (2002Va13)
191PB L 214.7 5 (5/2-)
191PB cL J 5/2- or 7/2-, from population in the {+195}Po |a Decay
191PB2cL (4.64 s) J{+|p}=3/2(-) and {+191}Bi |e Decay (12.4 s) J{+|p}=(9/2-),
191PB3cL along with the HF of |a decay. Based on the systematics
191PB4cL of the low-excitation energy levels in the neighboring odd-A Pb
191PB5cL isotopes, J{+|p}=5/2- is proposed by authors of 2010Co13.
191PB A 6399 10 0.054 12 4.8E2 11
191PB cA E From 2010Co13
191PB G 214.8 5 C
191PB L 597.3 5 3/2(-)
191PB cL J Based on E0 component of 597.2|g to 3/2(-).
191PB A 6027 5 0.34 3 2.02 21
191PB cA E From 2010Co13. Other: 6030 keV {I20} (2002Va13).
191PB cA IA Other: >0.17 (2002Va13)
191PB G 383 1 9 2 C
191PB G 597.2 5 100 E0+M1+E2 0.6 3
191PB cG E Other: 597 {I1} (2002Va13). Placement from coincidences with
191PB2cG the 6030|a transition (2002Va13).
191PB cG M From measured total conversion coefficient (2002Va13).
191PB2cG Theoretical values are: |a(M1)=0.0676 {I10},
191PB3cG |a(E1)=0.0067 {I1}, |a(E2)=0.0194 {I3}. The difference from the
191PB4cG experimental value is attributed to the large E0 component (2010Co13).
191PB cG CC Measured value reported in 2010Co13.
191PB L 641.7 11 (3/2-)
191PB cL J Proposed by authors of 2010Co13 based on the hindrance factor
191PB2cL of 5985|a from the 3/2{+(-)} state of {+195}Po.
191PB A 5985 10 0.036 3 12.2 12
191PB cA E From 2010Co13
191PB G 427 1 7 2 C