187RE 187W B- DECAY 1979YA14,1976BR09,1966RE0109NDS 200905
187RE H TYP=FUL$AUT=M. S. Basunia$CIT=NDS 110, 999 (2009)$CUT=1-Nov-2008$
187RE C Measurements: 1986Ha21, 1983Si18, 1979Ya14, 1976Br09, 1974HeYW,
187RE2C 1970He14, 1969GuZW, 1966Wi17, 1966Re01, 1965Se03, 1965Fu08,
187RE3C 1965Bi07, 1963Ha26, 1963Ma08, 1963Mi15, 1962Bi08, 1962St21, 1960Ar03,
187RE4C 1960Dz04, 1960Ga11, 1958Ve35, 1957Ma16, 1957Du49, 1953Co11, and
187RE5C 1952Mu45.
187RE C
187RE C The 187W B- decay scheme is a synthesis of several papers which are
187RE2C not fully consistent. The intense transitions agree well in
187RE4C most references, but considerable disagreement exists for many weak
187RE5C transitions in observation and placement in the decay scheme.
187RE C
187RE CB IB From decay scheme except where indicated. Direct measurement
187RE2CB from BG coincidence measurements of 1970He14 agree well with these
187RE3CB results and are given in comments.
187RE CB IB(A) From 1970He14, except otherwise noted.
187RE CG E,RI From 1976Br09, except otherwise noted.
187RE CG E(Y) From 1966Re01.
187RE CG E(X),RI(X)$From 1986Ha21.
187RE CG E(Z) From 1986Ha21
187RE CG E(W) Weighted average of 1966Re01 and 1976Br09.
187RE CG E(V) From 1983Si18.
187RE CG E(U) Weighted average of 1983Si18 and 1976Br09.
187RE CG E(T),RI(T)$From 1979Ya14.
187RE CG E(B,F) Tentative assignment to 187W decay by 1976Br09 on the basis
187RE2CG of approximate half-life.
187RE CG E(C) Observed only in coincidence.
187RE CG E(F) Placed in the decay scheme by the evaluator on the basis of
187RE2CG energy sums.
187RE CG E(E) Observed only by 1979Ya14 and not confirmed by 1986Ha21.
187RE CG RI(S) Weighted average of 1983Si18 and 1976Br09.
187RE CG RI(R) Weighted average of 1983Si18 and 1986Ha21.
187RE CG RI(Q) From 1986Ha21.
187RE CG RI(P) From 1999Mb04.
187RE CG TI(G) From CEG data of 1965Bi07, the intensity of the 70.2G and
187RE2CG 582G deexciting the 582 level are about equal. The total intensity for
187RE3CG these transitions has been calculated assuming an intensity balance
187RE4CG at the 582 level.
187RE CG M From CE measurements of 1963Ha26, 1966Wi17, 1970He14,
187RE2CG 1971Br45, and 1979Ya14. ICE's of 1966Wi17 and 1971Br45 have been
187RE3CG renormalized to KC(480)=0.0183 (E2 theory) and compared to the adopted
187RE4CG GAMMA ray intensities.
187RE CG MR From 1973Kr05, except otherwise noted.
187RE CG Experimental and theoretical AUGER-electron and X-RAY
187RE2CG intensities are given below. The AUGER-electron intensities from
187RE3CG 1966Wi17 and the XKA1 intensity from 1960Ga11 are compared with the
187RE4CG theoretical values from 1986BrZQ.
187RE TG
187REATG AUGER-electron{+a}
187REBTG
187RECTG Intensity
187REDTG energy transition experiment theory
187REETG ------ ---------- -------------------
187REFTG 46.37 KL1L1 1.0 1 1.00
187REGTG 46.91 KL1L2 1.50 15 1.51
187REHTG 47.41 KL2L2 0.10 5 0.10
187REITG 48.35 KL1L3 0.9 1 1.00
187REJTG 48.91 KL2L3 1.70 15 1.85
187REKTG 50.32 KL3L3 0.8 1 0.88
187RELTG 56.18 KL1M1+KL1M2 0.80 15 0.72
187REMTG 56.65 KL1M3+KL2M1 0.69 15 0.48
187RENTG 57.25 KL2M3 0.55 15 0.35
187REOTG 57.76 KL2M4 0.39 20 0.02
187REPTG 58.19 KL3LM1+KL3M2 0.75 20 0.49
187REQTG 58.69 KL3M3 0.7 2 0.33
187RERTG 60.57 KL3N 0.61 20 0.22
187RESTG 66.1 KM2N2+KM2M3+KM3M3 0.30 15 0.08
187RETTG
187REUTG X-RAY{+b}
187REVTG
187REWTG 59.72 XKA2 -- 7.25 19
187REXTG 61.14 XKA1 11.0 5 12.6 4
187REYTG 69.21 XKB1 -- 4.22 12
187REZTG 71.47 XKB2 -- 1.07 4
187RE2TG -----------------------------------------
187RE3TG {+a}multiply by 0.106 3 for absolute intensity per 100 decays.
187RE4TG This normalization is based on the decay scheme (26.3 5 K-vacancies
187RE5TG per 100 decays) and table 8 in 1986BrZQ. The normalization factor
187RE6TG 0.089 8 is obtained from the relative KL1L2+KL1L3+KL3L3 intensities of
187RE7TG 1960Ga11.
187RE8TG {+b}multiply by 1.0 for absolute intensity per 100 decays.
187RE TG
187RE2TG Summary of GG(THETA) results
187RE3TG
187RE4TG Cascade(spin sequence) A2 A4 |d* Reference
187RE5TG ---------------------- --------- --------- ------------ ---------
187RE6TG 72-134 -0.23 +0.09 5 1958Be22
187RE7TG 5/2(E1)7/2(M1+E2)5/2 +0.010 11 1959Ka09
187RE8TG -0.047 24 0.00 4 1963Mi10
187RE9TG -0.022 15 -0.04 4 1966Gu12
187REATG -0.035 23 0.003 32 1971Ni01
187REBTG -0.006 2 1972Ke34
187RECTG -0.066 11 0.030 23 1983Si18
187REDTG -0.002 1 -0.004 3 +0.182 +3-4 1979Ya14
187REETG
187REFTG 480-72 -0.12 3 1963Ko19
187REGTG 5/2(E2)9/2(E1)7/2 -0.071 5 1963Wa16
187REHTG -0.116 3 -0.003 6 E1 pure 1979Ya14
187REITG
187REJTG 551-134 -0.015 1959Ka09
187REKTG 5/2(E1)7/2(M1+E2)5/2 +0.316 18 -0.086 27 1960Ar03
187RELTG -0.034 17 -0.007 30 1963Mi10
187REMTG -0.024 13 +0.03 2 1966Gu12
187RENTG -0.028 15 +0.012 17 1970Na15
187REOTG -0.026 22 +0.003 27 1971Ni01
187REPTG -0.058 19 -0.023 39 1983Si18
187REQTG -0.019 3 -0.002 4 +0.202 +14-4 1979Ya14
187RERTG
187RESTG 246-618 +0.284 18 -0.007 30 0.5