ADOPTED LEVELS, GAMMAS for 62Fe

Authors: Alan L. Nichols, Balraj Singh, Jagdish K. Tuli |  Citation: Nucl. Data Sheets 113, 973 (2012) |  Cutoff date: 15-Apr-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2546 keV 19S(n)= 8029 keV 4S(p)= 14425 keV 4Q(α)= -9.47×103 keV 21
Reference: 2012WA38

References:
  A  62Mn β- decay (671 MS)  B  62Mn β- decay (92 MS)
  C  9Be(62Fe,62Fe’γ)  D  64Ni(18O,20Ne),(14C,16O),
  E  197Au(62Fe,62Fe’γ)  F  208Pb(64Ni,xγ)
  G  238U(64Ni,xγ),64Ni(238U,xγ) 

General Comments:

1975Fr16: identification and production of 62Fe in 64Ni(n,2pn) reaction at E(n)=25-200 MeV, neutron beam of the 200-MeV LINAC at BNL. Identification from monitoring of decay of 62Fe and growth of 62Co. Measured Eγ, half-life

Delayed neutron decay of 63Mn is allowed and, in principle, can populate levels in 62Fe, but there is no experimental information available for this decay mode

Nuclear structure calculations:

2009Sr01: shell model calculations for yrast band up to 8+

2010Le20: levels, B(E2), Q, intruder levels, shell model

2009Su20: shell model calculations for yrast band and 2-quasiparticle negative-parity bands

2002Ca48: shell-model calculations for level energy and B(E2) of first 2+ state

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

Q-value: S(2n)=13607.8 44, S(2p)=26952 213 (2011AuZZ)

Q-value: Values in 2003Au03: Q(β-)=2531 25, S(n)=8051 25, S(p)=14630 230, S(2n)=13632 15, S(2p)=26970 210










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABCDEFG 0+ 68 s 2 
% β- = 100
     
   877.31 10 ABCDEFG 2+ 5.3 ps 6     877.3 1 
  100
E2
     0.0
0+
  1692.3 20  B      (0+)      815 2 
 

   877.31
2+
  2016.98 18 A  D    (2+)     1139.8 2 
  2017.0 10 
  100 9 
   11 6 


   877.31
     0.0
2+
0+
  2176.47 14 A    FG (4+)     1299.2 1 
  100
Q
   877.31
2+
  2691.62 16 A     G (3+)      515.2 2 
   674.8 2 
  1814.0 2 
    5.0 13 
   16.9 25 
  100 8 


D
  2176.47
  2016.98
   877.31
(4+)
(2+)
2+
  2849.72 24 A            673.3 2 
  100

  2176.47
(4+)
  3008.9 5 A    FG (4-)      832.4 5 
  100

  2176.47
(4+)
  3015.7 5 A    FG (5-)      839.3 5 
  100

  2176.47
(4+)
  3310.0 7 A     G (6-)      294.3 5 
   301.0 10 
  100 50 
  <33


  3015.7
  3008.9
(5-)
(4-)
  3360.3 15 A           1183.8 15 
  100

  2176.47
(4+)
  3387.84 17      FG (6+)     1211.3 1 
  100
(Q)
  2176.47
(4+)
  3604.87 19      FG (7-)      294.8 3 
   589.2 1 
    6.1 22 
  100 5 

(Q)
  3310.0
  3015.7
(6-)
(5-)
  3629.4 3      FG      241.6 2 
  100

  3387.84
(6+)
  3633.48 18 A       (4+)      941.8 2 
  1457.1 2 
  1616.4 3 
  2756.0 5 
  100 7 
   77 6 
    2.6 4 
    2.5 3 
(D)



  2691.62
  2176.47
  2016.98
   877.31
(3+)
(4+)
(2+)
2+
  3661.7 15 A           1485.2 15 
  100

  2176.47
(4+)
  3713.7 15 A           1537.2 15 
  100

  2176.47
(4+)
  4050.7 4 A       (2+,3,4+)     1201.1 3 
  1874.0 15 
  3172.3 9 
  100 21 
   13 13 
   26 13 



  2849.72
  2176.47
   877.31

(4+)
2+
  4251.77 20      FG (8+)      647.1 3 
   863.9 1 
    6.7 34 
  100 8 

(Q)
  3604.87
  3387.84
(7-)
(6+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4358.84 25       G (8-)      754.0 2 
  1048.7 3 
   44 13 
  100 25 


  3604.87
  3310.0
(7-)
(6-)
  4902.2 4       G (9-)     1297.3 3 
  100

  3604.87
(7-)
  4970 80    D           
  5319.5 3      FG (10+)     1067.7 2 
  100

  4251.77
(8+)
  5474?      G     1222?
 

  4251.77
(8+)

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

Jπ(level): Assignments for negative-parity states are based on systematics and shell-model calculations by 2009Su20

M(γ): From γγ(θ) in 62Mn β- decay and γ(θ) in 238U(64Ni,Xγ)

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Yrast band.
     0.0 0+ 68 s 2 
% β- = 100
     
   877.31 10  2+ 5.3 ps 6     877.3 1 
  100
E2
     0.0
0+
  2176.47 14  (4+)     1299.2 1 
  100
Q
   877.31
2+
  3387.84 17  (6+)     1211.3 1 
  100
(Q)
  2176.47
(4+)
  4251.77 20  (8+)      647.1 3 
   863.9 1 
    6.7 34 
  100 8 

(Q)
  3604.87
  3387.84
(7-)
(6+)
  5319.5 3  (10+)     1067.7 2 
  100

  4251.77
(8+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band based on (4-),α=0
  3008.9 5  (4-)        
  3310.0 7  (6-)      294.3 5 
   301.0 10 
  100 50 
  <33


  3015.7
  3008.9
(5-)
(4-)
  4358.84 25  (8-)      754.0 2 
  1048.7 3 
   44 13 
  100 25 


  3604.87
  3310.0
(7-)
(6-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Band based on (5-),α=1
  3015.7 5  (5-)        
  3604.87 19  (7-)      294.8 3 
   589.2 1 
    6.1 22 
  100 5 

(Q)
  3310.0
  3015.7
(6-)
(5-)
  4902.2 4  (9-)     1297.3 3 
  100

  3604.87
(7-)

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Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
   877.31 2+ 5.3 ps 6     877.3 1 E2B(E2)(W.u.)=14.1 16

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 68 s 2 
% β- = 100
E(level): Yrast band.
   877.312+ 5.3 ps 6  E(level): Yrast band.
  2176.47(4+)   E(level): Yrast band.
  3008.9(4-)   E(level): Band based on (4-),α=0.
  3015.7(5-)   E(level): Band based on (5-),α=1.
  3310.0(6-)   E(level): Band based on (4-),α=0.
  3387.84(6+)   E(level): Yrast band.
  3604.87(7-)   E(level): Band based on (5-),α=1.
  4251.77(8+)   E(level): Yrast band.
  4358.84(8-)   E(level): Band based on (4-),α=0.
  4902.2(9-)   E(level): Band based on (5-),α=1.
  5319.5(10+)   E(level): Yrast band.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   877.31   877.3M(γ): ΔJ=2, quadrupole from γ(θ) and γγ(θ); RUL

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