ADOPTED LEVELS, GAMMAS for 165Os

Authors: Balraj Singh and Jun Chen |  Citation: Nucl. Data Sheets 194, 460 (2024) |  Cutoff date: 31-Oct-2022 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-10150 keV SYS(n)= 9390 keV SYS(p)= 1560 keV SYQ(α)= 6335 keV 6
Reference: 2021WA16

References:
  A  166Ir p decay (10.5 MS)  B  166Ir p decay (15.1 MS)
  C  169Pt α decay (6.99 MS)  D  92Mo(78Kr,2P3NG)
  E  106Cd(64Zn,2P3NG) 








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCDE (7/2-) 71 ms 3 
% ε = 10 2
% α = 90 2
     
    95.2 10    DE (9/2-)      95.2 10 
  100
(M1)
     0.0
(7/2-)
   499.3 5    DE (11/2-)     499.3 5 
  100
Q
     0.0
(7/2-)
   584.8 12    DE (13/2-)     489.6 5 
  100
Q
    95.2
(9/2-)
  1096.0 7    DE (15/2-)     596.7 5 
  100
Q
   499.3
(11/2-)
  1218.0 13    DE (17/2-)     633.2 5 
  100
Q
   584.8
(13/2-)
  1654.6 9    DE (19/2-)     558.6 5 
  100
Q
  1096.0
(15/2-)
  1917.8 14    DE (21/2-)     699.8 5 
  100

  1218.0
(17/2-)
  2247.6 14    DE (23/2-)     593.0 10 
  100

  1654.6
(19/2-)
  2609.4 17    DE (25/2-)     691.6 10 
  100

  1917.8
(21/2-)

E(level): From a least-squares fit to γ-ray energies

Jπ(level): For excited states, assignments are as proposed in 2013Dr06, based on multipolarity assignments from angular anisotropy data, and band structures

E(γ): From 92Mo(78Kr,2p3nγ) (2013Dr06). Corresponding energies in 106Cd(64Zn,2p3nγ) (2002Ap03) are in general agreement with those in 2013Dr06, but tend to be higher by about 0.5-1 keV or more. Since the two studies were carried out at the same laboratory, evaluator prefers to adopt values from the more recent work of 2013Dr06.

M(γ): From angular anisotropy measurements in in-beam γ-ray data. Mult=Q indicates ΔJ=2, quadrupole (most likely E2) transition

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Band built on νf7/2
     0.0 (7/2-) 71 ms 3 
% ε = 10 2
% α = 90 2
     
   499.3 5  (11/2-)     499.3 5 
  100
Q
     0.0
(7/2-)
  1096.0 7  (15/2-)     596.7 5 
  100
Q
   499.3
(11/2-)
  1654.6 9  (19/2-)     558.6 5 
  100
Q
  1096.0
(15/2-)
  2247.6 14  (23/2-)     593.0 10 
  100

  1654.6
(19/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band built on νh9/2
    95.2 10  (9/2-)        
   584.8 12  (13/2-)     489.6 5 
  100
Q
    95.2
(9/2-)
  1218.0 13  (17/2-)     633.2 5 
  100
Q
   584.8
(13/2-)
  1917.8 14  (21/2-)     699.8 5 
  100

  1218.0
(17/2-)
  2609.4 17  (25/2-)     691.6 10 
  100

  1917.8
(21/2-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    95.2 (9/2-)      95.2 10 (M1)6.48α=6.48 22

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(7/2-) 71 ms 3 
% ε = 10 2
% α = 90 2
%α is measured by 2008Bi15 from correlated α events in 169Pt -> 165Os -> 161W α decay chain. Other: 100 40 (1981Ho10).
E(level): %α is measured by 2008Bi15 from correlated α events in 169Pt -> 165Os -> 161W α decay chain. Other: 100 40 (1981Ho10). Band built on νf7/2.
    95.2(9/2-)   E(level): Band built on νh9/2.
   499.3(11/2-)   E(level): Band built on νf7/2.
   584.8(13/2-)   E(level): Band built on νh9/2.
  1096.0(15/2-)   E(level): Band built on νf7/2.
  1218.0(17/2-)   E(level): Band built on νh9/2.
  1654.6(19/2-)   E(level): Band built on νf7/2.
  1917.8(21/2-)   E(level): Band built on νh9/2.
  2247.6(23/2-)   E(level): Band built on νf7/2.
  2609.4(25/2-)   E(level): Band built on νh9/2.

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Additional Gamma Comments:

E(level)E(gamma)Comments
    95.2    95.2M(γ): from intensity balance arguments
   499.3   499.3E(γ): other: 499.7 3 from (64Zn,2p3nγ)
   584.8   489.6E(γ): other: 489.9 3 from (64Zn,2p3nγ)
  1096.0   596.7E(γ): other: 597.3 4 from (64Zn,2p3nγ)
  1218.0   633.2E(γ): other: 633.9 4 from (64Zn,2p3nγ)
  1654.6   558.6E(γ): other: 559.2 5 from (64Zn,2p3nγ)
  1917.8   699.8E(γ): other: 700.8 4 from (64Zn,2p3nγ)
  2247.6   593.0E(γ): other: 593.0 4 from (64Zn,2p3nγ)
  2609.4   691.6E(γ): other: 694.1 5 from (64Zn,2p3nγ) is discrepant

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