ADOPTED LEVELS, GAMMAS for 62Ga

Authors: Balraj Singh, Huang Xiaolong, and Wang Xianghan |  Citation: Nucl. Data Sheets 204, 1 (2025) |  Cutoff date: 30-Jun-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-9850 keV SYS(n)= 12920 keV 40S(p)= 2927 keV 16Q(α)= -2744.1 keV 7
Reference: 2021WA16

References:
  A  62Ge ε decay (73.5 MS)  B  9Be(64Ga,62GaG),(65Ge,62GaG)
  C  24Mg(40Ca,pnγ)  D  40Ca(24Mg,pnγ)
  E  40Ca(24Mg,pnγ),(28Si,APNG)  F  40Ca(28Si,APNG)
  G  58Ni(6Li,2nγ)  H  62Ga(12C,62Ga’γ)

General Comments:

Measured mass excess for 62Ga=-51992 keV 14 (2021Pa44), compared to mass excess=-51987.0 keV 6 (2021Wa16).

1978Ch11: production and identification of 62Ga in 64Zn(p,3n) reaction, measured half-life. Earlier reports: 1973ChYF and 1972ChYY

1978Al23: production and identification of 62Ga in 58Ni(6Li,2n) at 25 MeV, measured half-life

1979Da04: production and identification of 62Ga in 58Ni(6Li,2n) at 25 MeV, measured half-life

1993Wi03, 1993Wi18: 62Ga produced in fragmentation of 78Kr beam at 75 MeV/nucleon using A1200 spectrometer at NSCL, MSU. Measured isotopic half-life.

Earlier secondary reports of production, identification and T1/2 measurements: 1976BaXP, 1976JaZP

Mass measurements: 2021Pa44, 2006Er03 (Penning trap), 2005Gu36

1988Ga10: 64Zn(6Li,8He) E=92.5, 98.9 MeV, no events for 62Ga g.s. observed

Theoretical calculations: 23 primary references for structure calculations and seven primary references for decay characteristics of 62Ga can be retrieved from the NSR database at www.nndc.bnl.gov/nsr/

Q-value: Estimated uncertainty=140 keV for Q(β-) (2021Wa16)

Q-value: Q(ε)=9181.1 4, Q(εp)=2708.1 11, S(2n)=28540 200 (syst), S(2p)=8219.7 17 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0.0ABCDEFGH 0+ 116.123 ms 25 
% ε = 100
% εp = ?
     
    571.2 1 ABCDEFGH 1+      571.2 1 
  100
D
      0.0
0+
    817.2 2  BCDEFGH 3+ 3.4 ns 11     246.0 1 
  100
E2
    571.2
1+
    978.2 1 ABC   G  1+      978.2 1 
  100
(D)
      0.0
0+
    981 2        H 2+      981 2 
  100

      0.0
0+
   1016.8 4   CD     (2+)      445.6 3 
  100
D
    571.2
1+
   1017.1 1 A        1+     1017.1 1 
  100

      0.0
0+
   1072.5 2       G       501.3 1 
  100

    571.2
1+
   1117.41 20 A        1+     1117.4 2 
  100

      0.0
0+
   1161.1 1   C   G  (2+)      182.8 1 
   589.8 1 
   17 9 
  100 8 

D
    978.2
    571.2
1+
1+
   1193.6 2  BCDEFGH 5(+)      376.3 2 
  100
Q
    817.2
3+
   1352.0 2  B    G  (2,3+)      780.8 1 
  100

    571.2
1+
   1359.7 1 A        1+     1359.7 1 
  100

      0.0
0+
   1439.4 2  BCDE G  (4+)      622.2 1 
  100
Q,D+Q
    817.2
3+
   1490 20        H     1490 20 
  100

      0.0
0+
   1574.3 2   C   G  (2,3+)      595.9 9 
  1003.1 1 
   60 20 
  100 60 


    978.2
    571.2
1+
1+
   1850.1 4       G      1032.9 3 
  100

    817.2
3+
   1899.3 4 A        1+     1899.3 4 
  100

      0.0
0+
   2005 54        H     2005 54 
  100

      0.0
0+
   2010.9 4 A        1+     2010.9 4 
  100

      0.0
0+
   2164.1 4 A        1+     2164.1 4 
  100

      0.0
0+
   2211.0 4   C      (2,3+)     1232.7 3 
  100

    978.2
1+
   2212       H (4+)     1233
  100

    981
2+
   2234.0 5   CD     (4+)      794.4 5 
  1417.8 14 
   65 23 
  100 27 
Q,D+Q
D
   1439.4
    817.2
(4+)
3+
   2373.9 3   CDEFG  (6+)      934.7 6 
  1180.4 2 
   30 3 
  100 4 
(Q)
D+Q
   1439.4
   1193.6
(4+)
5(+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   2434.5 3   CDEFG  (7+)     1240.8 2 
  100
Q
   1193.6
5(+)
   2641.9 5 A        1+     2641.8 5 
  100

      0.0
0+
   2674.6 4   CD     (4+)     1236 1 ?
  1481 1 
  1513.0 17 
 
 
 

D

   1439.4
   1193.6
   1161.1
(4+)
5(+)
(2+)
   2966.9 5 A        1+     2966.8 5 
  100

      0.0
0+
   2990.1 10   C      (5,6,7+)     1796.5 9 
  100

   1193.6
5(+)
   3014.9 4   CD     (6+)      340.3 2 
   641.2 2 
  100 22 
   84 9 

D,D+Q
   2674.6
   2373.9
(4+)
(6+)
   3221 34        H (3-)     2242 34 
  100

    981
2+
   3339.7 5 A        1+     3339.6 5 
  100

      0.0
0+
   3492.2 3   CD F   (7)      478.3 11 
  1057.6 2 
  1118.3 2 
   20 10 
  100 4 
   51 9 

D
D
   3014.9
   2434.5
   2373.9
(6+)
(7+)
(6+)
   3594.8 4 A        1+     3594.7 4 
  100

      0.0
0+
   3796.7 8   C      (7,8,9+)     1362.2 7 
  100

   2434.5
(7+)
   3922.2 4   CDEF   (8+)      907.4 3 
  1487.5 3 
   45 5 
  100 5 
(Q)
D+Q
   3014.9
   2434.5
(6+)
(7+)
   4658.2 5   CD F   (8)     1166.0 3 
  100
D+Q
   3492.2
(7)
   4789.3 4   CDEF   (9+)      867.1 2 
  2354.8 5 
   23.6 14 
  100 4 
D+Q
Q
   3922.2
   2434.5
(8+)
(7+)
   4945.3 4   CD F   (9+,10+)     1023.1 2 
  100
Q,D+Q
   3922.2
(8+)
   5735.3 4   CDEF   (11+)      789.8 6 
   946.0 2 
    4.3 6 
  100 4 

Q
   4945.3
   4789.3
(9+,10+)
(9+)
   6842.6 5   CDEF   (13+)     1107.3 3 
  100
Q
   5735.3
(11+)
   8588.6 10   C  F   (15+)     1746.0 8 
  100
Q
   6842.6
(13+)
   9977.2 15   C  F   (17+)     1388.6 11 
  100
Q
   8588.6
(15+)
  10044.4 19      F   (15+)     3201.6 21 
  100
(Q)
   6842.6
(13+)
  10504 4 ?     F       3661.6 31 ?
  100

   6842.6
(13+)
  11133 3 ?     F   (16+)        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  11860.2 20      F   (17+)     1815.7 14 
  3271.8 27 
  100 5 
   19 4 
(Q)

  10044.4
   8588.6
(15+)
(15+)
  12390 3      F       3801.6 25 
  100

   8588.6
(15+)
  12702.4 23      F   (18)     2725.1 18 
  100
(D)
   9977.2
(17+)
  13086.3 25      F   (18+)     1953.3 17 ?
  3109.0 20 
  206 13 
  100 13 

(D+Q)
  11133
   9977.2
(16+)
(17+)
  13612 3      F   (17,18,19+)     3634.2 24 
  100

   9977.2
(17+)
  13934 3      F   (19+)     3956.9 26 
  100
(Q)
   9977.2
(17+)
  14081 3      F   (19+)     2221.0 17 
  4106.2 29 ?
  100 6 
    7.2 16 
(Q)

  11860.2
   9977.2
(17+)
(17+)
  15377 3      F   (20+)     2290.5 15 
  100

  13086.3
(18+)
  15461 3 ?     F       2758.7 18 ?
  100

  12702.4
(18)
  15724 4      F   (18,19,20)     2112.0 14 
  100
D
  13612
(17,18,19+)
  16821 4 ?     F   (21+)     2739.6 31 ?
  100

  14081
(19+)
      X?     F   J        
   2043.9+X 17 ?     F   (J+2)     2043.9 17 
  100
(Q)
      X
J
   4437.6+X 24 ?     F   (J+4)     2393.6 16 
  100
(Q)
   2043.9+X
(J+2)

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

Jπ(level): For levels populated in high-spin (J>4 or so) studies, yrast type of excitations are assumed i.e. spins ascend with the excitation energy. In addition, ΔJ=2, Q transitions are assumed as ΔJ=2, E2, and ΔJ=1, D+Q as ΔJ=1, M1+E2 transitions.

M(γ): From γγ(θ)(DCO) data in 40Ca(28Si,pnαγ) in 2020Ru03; and γγ(θ)(DCO) and γ(θ) data in 40Ca(24Mg,pnγ) in 2004Ru03. For a few transitions assignments from γ(θ) data in 24Mg(40Ca,pnγ) in 2013Da16, and DCO data in 40Ca(24Mg,pnγ) in 1998Vi06 are also available. Such measurements are parity-insensitive, but with no evidence for long-lived levels, ΔJ=2, Q transitions are likely ΔJ=2, E2, and ΔJ=1, D+Q as ΔJ=1, M1+E2.

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - ΔJ=2, t=0, yrast structure. Configuration=πf5/2g9/2
    571.2 1  1+        
    817.2 2  3+ 3.4 ns 11     246.0 1 
  100
E2
    571.2
1+
   1193.6 2  5(+)      376.3 2 
  100
Q
    817.2
3+
   2434.5 3  (7+)     1240.8 2 
  100
Q
   1193.6
5(+)
   4789.3 4  (9+)      867.1 2 
  2354.8 5 
   23.6 14 
  100 4 
D+Q
Q
   3922.2
   2434.5
(8+)
(7+)
   5735.3 4  (11+)      789.8 6 
   946.0 2 
    4.3 6 
  100 4 

Q
   4945.3
   4789.3
(9+,10+)
(9+)
   6842.6 5  (13+)     1107.3 3 
  100
Q
   5735.3
(11+)
   8588.6 10  (15+)     1746.0 8 
  100
Q
   6842.6
(13+)
   9977.2 15  (17+)     1388.6 11 
  100
Q
   8588.6
(15+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Yrast structure, α=0
   2674.6 4  (4+)        
   3014.9 4  (6+)      340.3 2 
   641.2 2 
  100 22 
   84 9 

D,D+Q
   2674.6
   2373.9
(4+)
(6+)
   3922.2 4  (8+)      907.4 3 
  1487.5 3 
   45 5 
  100 5 
(Q)
D+Q
   3014.9
   2434.5
(6+)
(7+)
   4945.3 4  (9+,10+)     1023.1 2 
  100
Q,D+Q
   3922.2
(8+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - ΔJ=(2) band based on (15+)
  10044.4 19  (15+)        
  11860.2 20  (17+)     1815.7 14 
  3271.8 27 
  100 5 
   19 4 
(Q)

  10044.4
   8588.6
(15+)
(15+)
  14081 3  (19+)     2221.0 17 
  4106.2 29 ?
  100 6 
    7.2 16 
(Q)

  11860.2
   9977.2
(17+)
(17+)
  16821 4  (21+)     2739.6 31 ?
  100

  14081
(19+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - ΔJ=(2) band based on (16+)
  11133 3  (16+)        
  13086.3 25  (18+)     1953.3 17 ?
  3109.0 20 
  206 13 
  100 13 

(D+Q)
  11133
   9977.2
(16+)
(17+)
  15377 3  (20+)     2290.5 15 
  100

  13086.3
(18+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - ΔJ=(2) band
      X J        
   2043.9+X 17  (J+2)     2043.9 17 
  100
(Q)
      X
J
   4437.6+X 24  (J+4)     2393.6 16 
  100
(Q)
   2043.9+X
(J+2)

Back to top

Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    817.2 3+ 3.4 ns 11     246.0 1 E20.0243B(E2)(W.u.)=12 +6-3, α=0.0243

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 116.123 ms 25 
% ε = 100
% εp = ?
T=1
Tz=0.
    571.21+   T=0
Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
    817.23+ 3.4 ns 11  T=0
Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
    9812+   T=1
Jπ(level): Proposed in 2023Wi05 based on comparions with mirror nucleus 62Zn and shell-model predictions.
   1193.65(+)   T=0
Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
   1439.4(4+)   T=0
Possible lowest t=0, (4+) state (2004Ru03).
   2212(4+)   Jπ(level): Proposed in 2023Wi05 based on comparions with mirror nucleus 62Zn and shell-model predictions.
   2373.9(6+)   Possible lowest t=0, (6+) state (2004Ru03).
   2434.5(7+)   Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
   3221(3-)   Jπ(level): Proposed in 2023Wi05 based on comparions with mirror nucleus 62Zn and shell-model predictions.
   3922.2(8+)   XREF: E(?).
Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
   4945.3(9+,10+)   Jπ(level): Positive parity from comparison with shell-model calculated spectrum for the odd-spin t=0 yrast band.
  10044.4(15+)   E(level): ΔJ=(2) band based on (15+).
  11133(16+)   E(level): ΔJ=(2) band based on (16+).
  11860.2(17+)   E(level): ΔJ=(2) band based on (15+).
  13086.3(18+)   E(level): ΔJ=(2) band based on (16+).
  14081(19+)   E(level): ΔJ=(2) band based on (15+).
  15377(20+)   E(level): ΔJ=(2) band based on (16+).
  16821(21+)   E(level): ΔJ=(2) band based on (15+).
      XJ   E(level): ΔJ=(2) band.
   2043.9+X(J+2)   E(level): ΔJ=(2) band.
   4437.6+X(J+4)   E(level): ΔJ=(2) band.

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
    817.2    246.0M(γ): from γγ(θ) in 40Ca(24Mg,pnγ) and RUL
    978.2    978.2M(γ): from (40Ca,pnγ). Other: (Q) from (6Li,2nγ)
   1161.1    589.8E(γ): from weighted average of in (40Ca,pnγ) and (6Li,2nγ)
   1193.6    376.3E(γ): unweighted average of values from (24Mg,pnγ); (40Ca,αpnγ); (6Li,2nγ), and (40Ca,pnγ)
   1352.0    780.8E(γ): from (6Li,2nγ). Other: 784 2 in 9Be(64Ga,62Gaγ),(65Ge,62Gaγ)
   1439.4    622.2E(γ): weighted average of values from (24Mg,pnγ); (40Ca,αpnγ); and (6Li,2nγ).
   1574.3    595.9E(γ): γ from (40Ca,pnγ) only
   1003.1E(γ): from (6Li,2nγ)
   2373.9    934.7I(γ): from (24Mg,pnγ). Other: 56 6 from (40Ca,pnγ)
   1180.4E(γ): weighted average of values from (40Ca,pnγ); (24Mg,pnγ); (40Ca,αpnγ); and (6Li,2nγ).
   2434.5   1240.8E(γ): weighted average of values from (40Ca,pnγ); (24Mg,pnγ); (40Ca,αpnγ); and (6Li,2nγ).
   3492.2   1057.6M(γ): ΔJ=0 transition
   3922.2    907.4M(γ): ΔJ=2, Q or ΔJ=1, D+Q from γ(θ) in (24Mg,pnγ) (2004Ru03), but the former is consistent with present spin-parity assignments

Back to top