ADOPTED LEVELS, GAMMAS for 47Cr

Author: T. W. Burrows |  Citation: Nucl. Data Sheets 108, 923 (2007) |  Cutoff date: 20-Feb-2007 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.200×104 keV 4S(n)= 13159 keV 22S(p)= 4775 keV 7Q(α)= -7665 keV 10
Reference: 2012WA38

References:
  A  47Mn β+ decay  B  48Fe β+p decay
  C  10B(40Ca,p2nγ), 40Ca(12C,NAG),  D  24Mg(28Si,αnγ),28Si(28Si,2αnγ)
  E  50Cr(3He,6He) 

General Comments:

The level scheme of 1998Be69 in 10B(40Ca,p2nγ) and that of 1994Ca04 in 10B(40Ca,p2nγ) are consistent through the 5903, 23/2- state. 1998Be69 did not observe the 1823γ assigned as 27/2-|)23/2- by 1994Ca04 and assigned the 2112γ to the 10019, 31/2-, level instead of the 9841.

The work of 1998Be69 in 24Mg(28Si,αnγ) showed no evidence for the 1823γ assigned as 27/2-|)23/2- by 1994Ca04 in 40Ca(12C,nαγ) and, therefore, this has not been adopted by the evaluator

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

Q-value: Other: 2000HaZY










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0.0ABCDE 3/2- 500 ms 15 
% ε = 100
     
     99.1  CDE (5/2-) ≤ 2.1 ns     98.7
   100
(M1)
      0.0
3/2-
    174.2  CDE (7/2-) ≤ 2.1 ns     74.7
   173.4
  ≈100
     1.4
(M1)
(E2)
     99.1
      0.0
(5/2-)
3/2-
    471.7  C E (3/2+)      372.2
   472
    17
   100


     99.1
      0.0
(5/2-)
3/2-
    870.1  C E (5/2+)      399
   770
   871
    30
    10
   100
D

D
    471.7
     99.1
      0.0
(3/2+)
(5/2-)
3/2-
   1332.1  CDE (11/2-)     1157.7
   100
D,Q
    174.2
(7/2-)
   1345.5  C E (7/2+)      474
   873
  1248
   100
    75
    25



    870.1
    471.7
     99.1
(5/2+)
(3/2+)
(5/2-)
   1451 9     E        
   1541 15     E        
   1831 8     E (1/2+)        
   1956.3  C   (9/2+)      610
  1088
  1781
     8
   100
    42

D,Q

   1345.5
    870.1
    174.2
(7/2+)
(5/2+)
(7/2-)
   2131 9     E        
   2406 10     E        
   2557 10     E        
   2618.3  C E (11/2+)      662
  1273
  1286
     5
   100
    30

D,Q

   1956.3
   1345.5
   1332.1
(9/2+)
(7/2+)
(11/2-)
   2653.8  CDE (15/2-) 0.583 ps 83    1321.7
   100
(E2)
   1332.1
(11/2-)
   2848 10     E        
   3430 10     E        
   3470.5  C   (13/2+)      852
  1514
     5
   100

D,Q
   2618.3
   1956.3
(11/2+)
(9/2+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   3504 11     E        
   3747 11     E        
   3766.4  C   (17/2-)     1112
   100
D
   2653.8
(15/2-)
   4139.0  CD  (19/2-) 0.305 ps 42     372
  1485.7
     5
   100
(M1)
(E2)
   3766.4
   2653.8
(17/2-)
(15/2-)
   4169 12     E        
   4214.9  C   (15/2+)      744
  1597
    25
   100


   3470.5
   2618.3
(13/2+)
(11/2+)
   4295 12     E        
   5375.0  C       1236
   100
D
   4139.0
(19/2-)
   5409 15     E        
   5905.0  CD  (23/2-) < 0.444 ps    530
  1766.0
    13
   100
(M1)
(E2)
   5375.0
   4139.0

(19/2-)
   7379.0   D  (25/2-)     1474
 

   5905.0
(23/2-)
   7911.0   D  (27/2-)      532
  2006
 
 


   7379.0
   5905.0
(25/2-)
(23/2-)
  10022   D  (31/2-)     2111.5
 

   7911.0
(27/2-)

E(level): From least-squares fit to Eγ, assuming ΔEγ=1 keV, except for states observed only in 50Cr(3He,6He)

T1/2(level): From γγ(t) in 10B(40Ca,p2nγ), 40Ca(12C,nαγ),..., except as noted to possible contamination from 46V (see discussion in 1985Bu07)

E(γ): Mean of Eγ’s from 10B(40Ca,p2nγ) and 24Mg(28Si,αnγ),28Si(28Si,2αnγ), except as noted

M(γ): From angular anisotropy in 10B(40Ca,p2nγ), except as noted

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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=7/2- band, α=-1/2 (1998Be69,1994Ca04).
    174.2 (7/2-) ≤ 2.1 ns      
   1332.1 (11/2-)     1157.7
   100
D,Q
    174.2
(7/2-)
   2653.8 (15/2-) 0.583 ps 83    1321.7
   100
(E2)
   1332.1
(11/2-)
   4139.0 (19/2-) 0.305 ps 42     372
  1485.7
     5
   100
(M1)
(E2)
   3766.4
   2653.8
(17/2-)
(15/2-)
   5905.0 (23/2-) < 0.444 ps    530
  1766.0
    13
   100
(M1)
(E2)
   5375.0
   4139.0

(19/2-)
   7911.0 (27/2-)      532
  2006
 
 


   7379.0
   5905.0
(25/2-)
(23/2-)
  10022 (31/2-)     2111.5
 

   7911.0
(27/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=7/2- band, α=+1/2 (1994Ca04).
   3766.4 (17/2-)        
   7379.0 (25/2-)     1474
 

   5905.0
(23/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - POSITIVE-PARITY SIDE band (1994Ca04).
    471.7 (3/2+)        
    870.1 (5/2+)      399
   770
   871
    30
    10
   100
D

D
    471.7
     99.1
      0.0
(3/2+)
(5/2-)
3/2-
   1345.5 (7/2+)      474
   873
  1248
   100
    75
    25



    870.1
    471.7
     99.1
(5/2+)
(3/2+)
(5/2-)
   1956.3 (9/2+)      610
  1088
  1781
     8
   100
    42

D,Q

   1345.5
    870.1
    174.2
(7/2+)
(5/2+)
(7/2-)
   2618.3 (11/2+)      662
  1273
  1286
     5
   100
    30

D,Q

   1956.3
   1345.5
   1332.1
(9/2+)
(7/2+)
(11/2-)
   3470.5 (13/2+)      852
  1514
     5
   100

D,Q
   2618.3
   1956.3
(11/2+)
(9/2+)
   4214.9 (15/2+)      744
  1597
    25
   100


   3470.5
   2618.3
(13/2+)
(11/2+)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
     99.1 (5/2-) ≤ 2.1 ns     98.7(M1)0.0269B(M1)(W.u.)>0.010, α=0.0269, α(K)=0.0242 4, α(L)=0.00232 4, α(M)=0.000306 5, α(N)=1.120×10-5 16, α(N+)=1.120E-5 16
    174.2 (7/2-) ≤ 2.1 ns     74.7(M1)0.0566B(M1)(W.u.)>0.023, α=0.0566, α(K)=0.0510 8, α(L)=0.00492 7, α(M)=0.000647 9, α(N)=2.36×10-5 4, α(N+)=2.36E-5 4
(7/2-) ≤ 2.1 ns    173.4(E2)0.0494B(E2)(W.u.)>2.2, α=0.0494, α(K)=0.0445 7, α(L)=0.00430 6, α(M)=0.000561 8, α(N)=1.96E-5 3, α(N+)=1.96E-5 3
   2653.8 (15/2-) 0.583 ps 83    1321.7(E2)0.0001160B(E2)(W.u.)=24 4, α=0.0001160 17, α(K)=7.44E-5 11, α(L)=6.87E-6 10, α(M)=9.04E-7 13, α(N)=3.40E-8 5, α(N+)=3.39E-5 5
   4139.0 (19/2-) 0.305 ps 42     372(M1)0.001000B(M1)(W.u.)=0.067 10, α=0.001000 14, α(K)=0.000907 13, α(L)=8.47×10-5 12, α(M)=1.114E-5 16, α(N)=4.17E-7 6, α(N+)=4.17E-7 6
(19/2-) 0.305 ps 42    1485.7(E2)0.0001470B(E2)=24 4, α=0.0001470 21, α(K)=5.82E-5 9, α(L)=5.37E-6 8, α(M)=7.07E-7 10, α(N)=2.66E-8 4, α(N+)=8.24E-5 12
   5905.0 (23/2-) < 0.444 ps    530(M1)0.000453B(M1)(W.u.)>0.038, α=0.000453 7, α(K)=0.000410 6, α(L)=3.81×10-5 6, α(M)=5.01E-6 7, α(N)=1.88E-7 3, α(N+)=1.88E-7 3
(23/2-) < 0.444 ps   1766.0(E2)0.000248B(E2)(W.u.)>6.5, α=0.000248 4, α(K)=4.14E-5 6, α(L)=3.81E-6 6, α(M)=5.01E-7 7, α(N)=1.89E-8 3, α(N+)=0.000202 3

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.03/2- 500 ms 15 
% ε = 100
E(level): From 10B(40Ca,p2nγ).
T1/2(level): Unweighted av of 472.0 ms 63 (1988HaZB. β+’s; ΔE/E scin telescope, tape transport, ms), 508 ms 10 (1985Bu07. 88γ,γ|+; low-energy photon system, Ge(Li)), and 520 ms 40 (1985HoZS. βγ(t); He-jet). The discrepancy between the γ and β+ measurements is unexplained; 1988HaZB excluded the possibility of contamination by 46V. Others: 452 ms 18 (1977Ho25. Eβ+>4.8 MeV; scin) and 460 ms 15 (1977Ed01. 1 MeV|<Eβ+|<4 MeV; He-jet chopper, scin) excluded due.
    174.2(7/2-) ≤ 2.1 ns E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04).
    471.7(3/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
    870.1(5/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
   1332.1(11/2-)   E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04).
Jπ(level): J|)J or J|)J-2 d,Q or d,E2 cascade to (7/2-). Comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.
   1345.5(7/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
Jπ(level): From deexcitation patterns and similarity with the mirror nucleus 47V.
   1956.3(9/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
Jπ(level): From J|)J or J|)J-2 γ cascade to (5/2+) and deexcitation patterns and similarity with the mirror nucleus 47V.
   2618.3(11/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
Jπ(level): From J|)J or J|)J-2 γ cascade to (5/2+) and deexcitation patterns and similarity with the mirror nucleus 47V.
   2653.8(15/2-) 0.583 ps 83  E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04).
Jπ(level): J|)J or J|)J-2 d,Q or d,E2 cascade to (7/2-). Comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.
T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ).
   3470.5(13/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
Jπ(level): From J|)J or J|)J-2 γ cascade to (5/2+) and deexcitation patterns and similarity with the mirror nucleus 47V.
   3766.4(17/2-)   E(level): From 24Mg(28Si,αnγ). Kπ=7/2- band, α=+1/2 (1994Ca04).
   4139.0(19/2-) 0.305 ps 42  E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04).
Jπ(level): J|)J or J|)J-2 d,Q or d,E2 cascade to (7/2-). Comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.
T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ).
   4214.9(15/2+)   E(level): POSITIVE-PARITY SIDE band (1994Ca04).
Jπ(level): From deexcitation patterns and similarity with the mirror nucleus 47V.
   5905.0(23/2-) < 0.444 ps E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04).
Jπ(level): J|)J or J|)J-2 d,Q or d,E2 cascade to (7/2-). Comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.
T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ).
   7379.0(25/2-)   E(level): From 24Mg(28Si,αnγ). Kπ=7/2- band, α=+1/2 (1994Ca04).
   7911.0(27/2-)   E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). Placed from 9841, 31/2-, in 10B(40Ca,p2nγ).
Jπ(level): From the comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.
  10022(31/2-)   E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). Placed from 9841, 31/2-, in 10B(40Ca,p2nγ).
Jπ(level): From the comparison of the γ-ray spectrum and level scheme in 24Mg(28Si,αnγ) with the corresponding spectrum and level scheme for 47V.

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