212BI    216AT A DECAY:J=9             1994LI10,1971BR13         20NDS    202009
212BI  H TYP=FUL$AUT=K. Auranen and E.A. McCutchan$CIT=NDS 168, 117 (2020)$
212BI2 H CUT=1-Aug-2020$
212BI c  1994Li10: {+224}Ac activity produced by bombarding targets of
212BI2c  {+232}Th with 200-MeV protons followed by mass separation. Sources of
212BI3c  {+216}At were produced in secular equilibrium with {+220}Fr and
212BI4c  {+224}Ac.  Measured E|a, I|a, E|g, I|g, |a|g coin, ce, |a-ce coin,
212BI5c  ce-|g coin using Ge detectors for |g rays and Si(Li) for conversion
212BI6c  electrons.
212BI c  1971Br13: {+224}Ac activity from parent {+228}Pa produced in
212BI2c  {+232}Th(p,5n) reaction.  Sources of {+216}At were produced in
212BI3c  secular equilibrium with {+220}Fr and {+224}Ac. Measured E|a, I|a.
212BI c  1994Li10 and 1971Br13 both indicate that this is a very tentative
212BI2c  decay scheme proposed to account for the observed 7960|a.
212BI cA HF$r{-0}({+212}Bi)=1.552 {I14}, average of r{-0}({+214}Po)=1.56062
212BI2cA {I74}, r{-0}({+212}Po)=1.5658 {I59}, r{-0}({+212}Pb)=1.54117 {I28},
212BI3cA and r{-0}({+210}Pb)=1.539616 {I24} (2020Si16).
212BI cL E,J,T$From the Adopted Levels
216AT  P 400       30 (9-)                                       7950     3
216AT cP E$from assumption that the 7960|a populates the 239-keV, 25 min
216AT2cP isomer in {+212}Bi.
216AT cP T$on the basis of systematics, taking HF|?2 would give a T{-1/2} of
216AT2cP approximately 0.1 ms.
212BI  N                        1.0
212BI PN                                                                     5
212BI  L 239       30 (8-,9-)           25.0 M    2                          M1
212BI  A 7960        100
212BI cA E$from 1971Br13.