ADOPTED LEVELS, GAMMAS for 192Po

Author: Coral M. Baglin |  Citation: Nucl. Data Sheets 113, 1871 (2012) |  Cutoff date: 15-Jun-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.101×104 keV 4S(n)= 11073 keV 14S(p)= 2120 keV 14Q(α)= 7320 keV 4
Reference: 2012WA38

References:
  A  196Rn α decay  B  160Dy(36Ar,4nγ),
  C  192Po IT decay 

General Comments:

Identification: excitation functions for 182W(20Ne,xn) (1977De32).

Activity (T1/2=0.5 s 1, Eα=6580 keV 40), attributed in 1958To25 to 192Po, disagrees with systematics and with data of 1981Le23.

Theory (partial list only):

Calculations using Coulomb and proximity potential model: t(-1/2), branching and HF for g.s. α decay (2011Sa10); T1/2 and HF for g.s. α decay (2010Sa36).

Q-value: Note: Current evaluation has used the following Q record

Q-value: Values are from 2011AuZZ (cf. S(n)=11089 16, S(p)=2120 14 and Q(α)=7319 5 from 2003Au03).










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABC 0+ 32.2 ms 3 
% ε ≈ 0.5
% α ≈ 99.5
     
   262.0 3  BC (2+)     262.0 3 
  100
[E2]
     0.0
0+
   605.2 5  BC (4+)     343.2 3 
  100
[E2]
   262.0
(2+)
  1043.3 7  BC (6+)     438.1 5 
  100
[E2]
   605.2
(4+)
  1561.2 9  BC (8+)     517.9 5 
  100
[E2]
  1043.3
(6+)
  2140.6 13  BC (10+)     579.4 5 
  100
[E2]
  1561.2
(8+)
  2294.6  C (11-) 0.58 µs 10 
% IT = 100
  154?
  100
E1
  2140.6
(10+)

E(level): From least-squares fit to Eγ.

Jπ(level): From (36Ar,4nγ); based on Iγ, αγγ coin, and level-energy systematics for neighboring nuclei (see, e.g., fig. 4 of 2003Va05), 1996He22 tentatively identify the observed gammas with the E2 cascade of the g.s. band of 192Po.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=0+ GS Band.
     0.0 0+ 32.2 ms 3 
% ε ≈ 0.5
% α ≈ 99.5
     
   262.0 3  (2+)     262.0 3 
  100
[E2]
     0.0
0+
   605.2 5  (4+)     343.2 3 
  100
[E2]
   262.0
(2+)
  1043.3 7  (6+)     438.1 5 
  100
[E2]
   605.2
(4+)
  1561.2 9  (8+)     517.9 5 
  100
[E2]
  1043.3
(6+)
  2140.6 13  (10+)     579.4 5 
  100
[E2]
  1561.2
(8+)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
   262.0 (2+)     262.0 3 [E2]0.191α=0.191
   605.2 (4+)     343.2 3 [E2]0.0853α=0.0853
  1043.3 (6+)     438.1 5 [E2]0.0444α=0.0444
  1561.2 (8+)     517.9 5 [E2]0.0295α=0.0295
  2140.6 (10+)     579.4 5 [E2]0.0228α=0.0228
  2294.6 (11-) 0.58 µs 10 
% IT = 100
  154E10.1558B(E1)(W.u.)=9.6E-8 17, α=0.1558

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 32.2 ms 3 
% ε ≈ 0.5
% α ≈ 99.5
Δ<r2>(192Po,210Po)=-0.537 fm2 13 (2011Co01); there exists an additional systematic uncertainty of 0.022 fm2. Datum obtained using in-source resonant LASER spectroscopy.
E(level): Δ<r2>(192Po,210Po)=-0.537 fm2 13 (2011Co01); there exists an additional systematic uncertainty of 0.022 fm2. Datum obtained using in-source resonant LASER spectroscopy. Kπ=0+ GS Band.
   262.0(2+)   E(level): Kπ=0+ GS Band.
   605.2(4+)   E(level): Kπ=0+ GS Band.
  1043.3(6+)   E(level): Kπ=0+ GS Band.
  1561.2(8+)   E(level): Kπ=0+ GS Band.
  2140.6(10+)   E(level): Kπ=0+ GS Band.

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Additional Gamma Comments:

E(level)E(gamma)Comments

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