ADOPTED LEVELS, GAMMAS for 171Pt

Authors: Coral M. Baglin, E.A. Mccutchan |  Citation: Nucl. Data Sheets 151, 334 (2018) |  Cutoff date: 30-Jun-2018 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-8950 keV 80S(n)= 9240 keV 80S(p)= 1400 keV SYQ(α)= 6607 keV 3
Reference: 2012WA38

References:
  A  175Hg α decay  B  96Mo(78Kr,3nγ)
  C  116Sn(58Ni,3nγ), S(n)(60Ni,xnγ)  D  96Ru(78Kr,2pnγ)
  E  171Pt IT decay 

General Comments:

Identification: excitation functions for 112Sn(63Cu,pxn) and relative positions for α’s from known Pt activities (1981De22); genetic relationship to 167Os daughter (1981Ho10).

Calculation of α decay half-life: 2013Ha05 (modified barrier penetration formula; good agreement with experimental value); 2011Ta23 (semiempirical, one-parameter model).

Q-value: ΔS(p)=120 (2012Wa38).










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0A   E (7/2-) 45.5 ms 25 
% ε = 10 7
% α = 90 7
     
    89.5 7     E (9/2-)      89.5 7 
  100
M1
     0.0
(7/2-)
   412.6 10  BCDE (13/2+) 901 ns 9 
% IT = 100
  323.1 6 
  100
M2
    89.5
(9/2-)
   857.6 10  BCD  (17/2+)     445.0 2 
  100
(E2)
   412.6
(13/2+)
  1462.3 10  BCD  (21/2+)     604.7 2 
  100
(E2)
   857.6
(17/2+)
  1473.5 10    D      615.9 2 
  100

   857.6
(17/2+)
  2131.7 10  BCD  (25/2+)     669.4 2 
  100
(E2)
  1462.3
(21/2+)
  2816.6 10  BCD  (29/2+)     684.9 2 
  100

  2131.7
(25/2+)
  3516.6? B    (33/2+)     700?
  100

  2816.6
(29/2+)

E(level): From adopted Eγ data.

Jπ(level): From (78Kr,3nγ), except as noted; based on the very close similarity between level spacings in 171Pt and in the g.s. band of 172Pt, 1998Se20 suggest that the states excited in their fusion-evaporation reaction (which is expected to strongly populate (ν i13/2) bands) result from the coupling of a rotationally-aligned i13/2 neutron to 0+, 2+, ..., 10+ excitations of the core.

E(γ): From 96Ru(78Kr,2pnγ), except as noted.

M(γ): From γ(θ) in 96Ru(78Kr,2pnγ), assigning Δπ=(no) to intraband transitions, except as noted.

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - PROBABLE i13/2, α=+1/2 band.
   412.6 10  (13/2+) 901 ns 9 
% IT = 100
     
   857.6 10  (17/2+)     445.0 2 
  100
(E2)
   412.6
(13/2+)
  1462.3 10  (21/2+)     604.7 2 
  100
(E2)
   857.6
(17/2+)
  2131.7 10  (25/2+)     669.4 2 
  100
(E2)
  1462.3
(21/2+)
  2816.6 10  (29/2+)     684.9 2 
  100

  2131.7
(25/2+)
  3516.6 (33/2+)     700?
  100

  2816.6
(29/2+)

Back to top

Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    89.5 (9/2-)      89.5 7 M19.15α=9.15 25
   412.6 (13/2+) 901 ns 9 
% IT = 100
  323.1 6 M20.926B(M2)(W.u.)=0.165 3, α=0.926 15
   857.6 (17/2+)     445.0 2 (E2)0.0331α=0.0331
  1462.3 (21/2+)     604.7 2 (E2)0.01581α=0.01581
  2131.7 (25/2+)     669.4 2 (E2)0.01260α=0.01260

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   412.6(13/2+) 901 ns 9 
% IT = 100
E(level): PROBABLE i13/2, α=+1/2 band.
   857.6(17/2+)   E(level): PROBABLE i13/2, α=+1/2 band.
  1462.3(21/2+)   E(level): PROBABLE i13/2, α=+1/2 band.
  2131.7(25/2+)   E(level): PROBABLE i13/2, α=+1/2 band.
  2816.6(29/2+)   E(level): PROBABLE i13/2, α=+1/2 band.
  3516.6(33/2+)   E(level): PROBABLE i13/2, α=+1/2 band.

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
    89.5    89.5E(γ): From IT decay.
M(γ): from α(K)exp in IT decay.
   412.6   323.1E(γ): From IT decay.
M(γ): from α(K)exp and sub-shell ratios in IT decay.
  1462.3   604.7E(γ): other: 605.4 2 in 116Sn(58Ni,3nγ), Sn(60Ni,xnγ).
  2131.7   669.4E(γ): other: 670.2 3 in 116Sn(58Ni,3nγ), Sn(60Ni,xnγ).
  3516.6   700E(γ): From 96Mo(78Kr,3nγ), uncertainty unstated by authors.

Back to top