160TM    160TM IT DECAY (74.5 S)       1983SI20                  21NDS    202108
160TM  H TYP=FUL$AUT=N. NICA$CIT=NDS 176, 1 (2021)$CUT=1-May-2021$
160TM D  DATA SET PREPARED BY CWR (6/96) DURING RESPONSE TO REFEREE'S
160TM2D   COMMENTS ON A=160 EVALUATION.
160TM c  The source was produced in the {+164}Er(p,5n) reaction with E(p)=57
160TM2c  MeV. The |g radiation was studied using three high-resolution Ge
160TM3c  detectors, two to measure |g singles, |g|g, and time-sequential data
160TM4c  and one to measure |g singles and time-sequential data for x rays and
160TM5c  low-energy |g rays. The internal-conversion electron spectrum was
160TM6c  measured using a mini-orange spectrometer and a cooled Si(Li)
160TM7c  detector. Authors report E|g, I|g, |g|g, |g(t), E(ce), Ice.
160TM c  The decay scheme is that worked up by the evaluator, based on the
160TM2c  information given in 1983Si20. This information has been supplemented
160TM3c  with other considerations, especially those regarding permissible
160TM4c  ranges for |g-ray transition rates as embodied in RUL.
160TM cG $Neither of the two listed |g rays was directly observed by 1983Si20
160TM3cG but observed in the {+160}Yb |e and presumably in (HI,xn|g) as well.
160TM2cG The 42|g and its properties are well established from the {+160}Yb |e
160TM3cG decay. Its presence in the IT decay has been inferred by the
160TM4cG evaluator, since, from RUL, it is quite unlikely that the isomeric
160TM5cG state would deexcite directly to the g.s. (via an E4 or M4 |g). It is
160TM6cG more likely that the deexcitation takes place (via an E3 or M3 |g)
160TM7cG to the 42 level, which decays through the 42|g.
160TM cL E,J,T     From adopted values
160TM  P  70       20 5                  74.5 S  15
160TM  N 1.00         1.00      0.85   5
160TM PN                                                                     3
160TM cN BR        1983Si20 estimate %IT=85 {I5} from the intensities of the
160TM2cN 74-s and 9.4-min components of the 264-keV |g ray measured at the
160TM3cN beginning of the counting period, assuming that the production cross
160TM4cN sections in the (p,5n) reaction for the {+160}Tm g.s. and the 74.5-s
160TM5cN isomer are comparable.
160TM  L 0.0          1-                 9.4 M    3
160TM  L  42.11     5 2-
160TM  G   42.02   10    5.5  6 M1+E2    0.31    3     17.1   20 100
160TMS G LC=13.4 15 $ MC=3.2 4
160TM  L  70       20 5                  74.5 S  15                          M1
160TM cL T$|g(t) (1983Si20)
160TM  G   28.85                                                 100           ?
160TM cG E$from adopted gammas. It is given with with two decimals but with no
160TM2cG unc in (HI,xn|g) dataset (2008Lu17 and 2008Su08). Because of missing
160TM2cG information it is not clear how this transition was measured, reason
160TM2cG for which its existence is questioned by evaluator. Previously 28
160TM2cG {I20} was computed by 2005Re18 from the level-energy difference of
160TM2cG parent level at 70 {I20} and the daughter level at 42.
160TM cG M         from the level scheme, this transition can be either E3
160TM2cG or M3