91ZR    91NB EC DECAY (6.8E+2 Y)      1993HI09,1982NA17         13NDS    201310
 91ZR  H TYP=FUL$AUT=Coral M. Baglin$CIT=NDS 114, 1293 (2013)$CUT=1-Sep-2013$
 91ZR D  IS 2ND-FORBIDDEN NON-UNIQUE LOGFT CALC HANDLED CORRECTLY?
 91ZR C  1993HI09: radiochemically separated 91NB source; intrinsic Ge
 91ZR2C  detectors; measured I(G+-), I(ZR XK); deduced %IB+.
 91ZR C  1982NA17: HPGe detector, FWHM=263 EV at 5.9 KEV and
 91ZR2C  563 EV at 122 KEV. Measured XK activity of mass-separated
 91ZR3C  sample; deduced parent ^T{-1/2}.
 91NB  P 0.0         9/2+              6.8E+2 Y  13             1258       3
 91ZR  N                       1.0       1.0
 91ZR  L 0           5/2+
 91ZR  E               0.170 10 99.830 10  10.58  9             100
 91ZRS E EAV=109.7 13$CK=0.8696$CL=0.10509 2$CM+=0.023621 4
 91ZR CE IB        SEE COMMENT ON LOGFT.  MEASURED IB=0.0077% 8 (1993HI09),
 91ZR2CE deduced from I(G+-) and I(XK, ZR) measured as a function of
 91ZR3CE time for AP 590 days in order to differentiate between
 91ZR4CE contributions from 91NB(60.86 D) and 91NB(680 Y) in source.
 91ZR CE IE        (100 - measured %IB+)=99.9923 8 (1993HI09).  SEE COMMENT ON
 91ZR2CE LOGFT.
 91ZR CE LOGFT     calculated for an allowed transition assuming %(EC+B+)=100.
 91ZR2CE HOWEVER, note that measured IB+/IE=0.000077 8 for this second-forbidden
 91ZR3CE nonunique transition differs significantly from that calculated here
 91ZR4CE (0.00170 10) assuming an allowed transition.