ADOPTED LEVELS, GAMMAS for 47Cr
Authors: S. Ota and E.A. Mccutchan | Citation: Nucl. Data Sheets 203, 1 (2025) | Cutoff date: 1-Apr-2025
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-1.200×104 keV 4 | S(n)= 13159 keV 22 | S(p)= 4775 keV 7 | Q(α)= -7665 keV 10 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 47Mn EC+B+ decay | B | 48Fe εp decay |
| C | 1H(48Cr,dγ) | D | 10B(40Ca,p2nγ),40Ca(12C,NAG) |
| E | 24Mg(28Si,αnγ),28Si(28Si,2αnγ) | F | 50Cr(3He,6He) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDEF | 3/2- | 461 ms 2 % ε = 100 | |||||
| 98.28 19 | ABCDEF | (5/2-) | ≤ 2.1 ns | 98.2 2 | 100 | (M1) | 0.0 | 3/2- |
| 173.4 3 | A CDEF | (7/2-) | ≤ 2.1 ns | 74.7 6 173.4 4 | ≈100 1.4 | [E2] | 98.28 0.0 | (5/2-) 3/2- |
| 471.3 6 | CD F | (3/2+) | 372.2 472 | 17 100 | 98.28 0.0 | (5/2-) 3/2- | ||
| 869.6 5 | D F | (5/2+) | 399 770 871 | 30 10 100 | D D | 471.3 98.28 0.0 | (3/2+) (5/2-) 3/2- | |
| 1331.7 8 | DEF | (11/2-) | 1158.3 | 100 | 173.4 | (7/2-) | ||
| 1344.9 6 | D F | (7/2+) | 474 873 1248 | 100 75 25 | 869.6 471.3 98.28 | (5/2+) (3/2+) (5/2-) | ||
| 1451 9 | F | |||||||
| 1541 15 | F | |||||||
| 1831 8 | F | (1/2+) | ||||||
| 1955.8 6 | D | (9/2+) | 610 1088 1781 | 8 100 42 | 1344.9 869.6 173.4 | (7/2+) (5/2+) (7/2-) | ||
| 2131 9 | F | |||||||
| 2406 10 | F | |||||||
| 2557 10 | F | |||||||
| 2617.8 7 | D F | (11/2+) | 662 1273 1286 | 5 100 30 | 1955.8 1344.9 1331.7 | (9/2+) (7/2+) (11/2-) | ||
| 2654.1 13 | DEF | (15/2-) | 0.583 ps 83 | 1322.3 | 100 | (E2) | 1331.7 | (11/2-) |
| 2848 10 | F | |||||||
| 3430 10 | F | |||||||
| 3470.0 9 | D | (13/2+) | 852 1514 | 5 100 | 2617.8 1955.8 | (11/2+) (9/2+) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 3504 11 | F | |||||||
| 3747 11 | F | |||||||
| 3766.4 15 | D | (17/2-) | 1112 | 100 | D | 2654.1 | (15/2-) | |
| 4138.7 15 | DE | (19/2-) | 0.305 ps 42 | 372 1485 | 5 100 | (E2) | 3766.4 2654.1 | (17/2-) (15/2-) |
| 4169 12 | F | |||||||
| 4214.4 10 | D | (15/2+) | 744 1597 | 25 100 | 3470.0 2617.8 | (13/2+) (11/2+) | ||
| 4295 12 | F | |||||||
| 4440 | A | (5/2-) | ||||||
| 5374.8 17 | D | 1236 | 100 | D | 4138.7 | (19/2-) | ||
| 5409 15 | F | |||||||
| 5904.8 17 | DE | (23/2-) | < 0.444 ps | 530 1766.0 | 13 100 | (E2) | 5374.8 4138.7 | (19/2-) |
| 7378.8 19 | E | (25/2-) | 1474 | 100 | 5904.8 | (23/2-) | ||
| 7910.8 19 | E | (27/2-) | 532 2006 | | 7378.8 5904.8 | (25/2-) (23/2-) | ||
| 10021.9 22 | E | (31/2-) | 2111 | 100 | 7910.8 | (27/2-) | ||
E(level): From least-squares fit to Eγ by evaluators for levels connected by gamma rays and assuming ΔE=1 keV when not given. Else from 50Cr(3He,6He) except where noted.
T1/2(level): From γγ(t) in 10B(40Ca,p2nγ), 40Ca(12C,nαγ), except where noted.
M(γ): From angular anisotropy in 10B(40Ca,p2nγ), except as noted
| 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). 1998Be69 | |||||||
| 173.4 3 | (7/2-) | ≤ 2.1 ns | |||||
| 1331.7 8 | (11/2-) | 1158.3 | 100 | 173.4 | (7/2-) | ||
| 2654.1 13 | (15/2-) | 0.583 ps 83 | 1322.3 | 100 | (E2) | 1331.7 | (11/2-) |
| 4138.7 15 | (19/2-) | 0.305 ps 42 | 372 1485 | 5 100 | (E2) | 3766.4 2654.1 | (17/2-) (15/2-) |
| 5904.8 17 | (23/2-) | < 0.444 ps | 530 1766.0 | 13 100 | (E2) | 5374.8 4138.7 | (19/2-) |
| 7910.8 19 | (27/2-) | 532 2006 | | 7378.8 5904.8 | (25/2-) (23/2-) | ||
| 10021.9 22 | (31/2-) | 2111 | 100 | 7910.8 | (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). 25/2- state added by | |||||||
| 3766.4 15 | (17/2-) | ||||||
| 7378.8 19 | (25/2-) | 1474 | 100 | 5904.8 | (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). | |||||||
| 471.3 6 | (3/2+) | ||||||
| 869.6 5 | (5/2+) | 399 770 871 | 30 10 100 | D D | 471.3 98.28 0.0 | (3/2+) (5/2-) 3/2- | |
| 1344.9 6 | (7/2+) | 474 873 1248 | 100 75 25 | 869.6 471.3 98.28 | (5/2+) (3/2+) (5/2-) | ||
| 1955.8 6 | (9/2+) | 610 1088 1781 | 8 100 42 | 1344.9 869.6 173.4 | (7/2+) (5/2+) (7/2-) | ||
| 2617.8 7 | (11/2+) | 662 1273 1286 | 5 100 30 | 1955.8 1344.9 1331.7 | (9/2+) (7/2+) (11/2-) | ||
| 3470.0 9 | (13/2+) | 852 1514 | 5 100 | 2617.8 1955.8 | (11/2+) (9/2+) | ||
| 4214.4 10 | (15/2+) | 744 1597 | 25 100 | 3470.0 2617.8 | (13/2+) (11/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 98.28 | (5/2-) | ≤ 2.1 ns | 98.2 2 | (M1) | 0.0272 | α=0.0272 4, α(K)=0.0246 4, α(L)=0.002355 35, α(M)=0.000310 5, α(N)=1.135×10-5 17 |
| 173.4 | (7/2-) | ≤ 2.1 ns | 74.7 6 | 0.0566 | B(M1)(W.u.)>0.023, α=0.0566 | |
| (7/2-) | ≤ 2.1 ns | 173.4 4 | [E2] | 0.0494 | α=0.0494 8, α(K)=0.0445 7, α(L)=0.00430 7, α(M)=0.000561 9, α(N)=1.957×10-5 32 | |
| 2654.1 | (15/2-) | 0.583 ps 83 | 1322.3 | (E2) | 1.16×10-4 | B(E2)(W.u.)=23.8 +39-30, α=1.16E-4 2, α(K)=7.43E-5 10, α(L)=6.86E-6 10, α(M)=9.03E-7 13, α(N)=3.39E-8 5 |
| 4138.7 | (19/2-) | 0.305 ps 42 | 1485 | (E2) | 1.46×10-4 | B(E2)=24 4, B(E2)(W.u.)=24.3 +40-30, α=1.46E-4 2, α(K)=5.83E-5 8, α(L)=5.38E-6 8, α(M)=7.07E-7 10, α(N)=2.66E-8 4 |
| 5904.8 | (23/2-) | < 0.444 ps | 1766.0 | (E2) | 2.48×10-4 | α=2.48×10-4 4, α(K)=4.14E-5 6, α(L)=3.81E-6 5, α(M)=5.01E-7 7, α(N)=1.890E-8 26 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 173.4 | (7/2-) | ≤ 2.1 ns | XREF: F(182). E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. |
| 471.3 | (3/2+) | XREF: F(478). E(level): Positive parity side band (1994Ca04). | |
| 869.6 | (5/2+) | XREF: F(890). E(level): Positive parity side band (1994Ca04). | |
| 1331.7 | (11/2-) | E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. | |
| 1344.9 | (7/2+) | XREF: F(1355). E(level): Positive parity side band (1994Ca04). | |
| 1955.8 | (9/2+) | E(level): Positive parity side band (1994Ca04). | |
| 2617.8 | (11/2+) | XREF: F(2609). E(level): Positive parity side band (1994Ca04). | |
| 2654.1 | (15/2-) | 0.583 ps 83 | XREF: F(2661). E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ). |
| 3470.0 | (13/2+) | E(level): Positive parity side band (1994Ca04). | |
| 3766.4 | (17/2-) | E(level): Kπ=7/2- band, α=+1/2 (1994Ca04). 25/2- state added by. | |
| 4138.7 | (19/2-) | 0.305 ps 42 | E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ). |
| 4214.4 | (15/2+) | E(level): Positive parity side band (1994Ca04). | |
| 5904.8 | (23/2-) | < 0.444 ps | E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. T1/2(level): From DSAM in 24Mg(28Si,αnγ),28Si(28Si,2αnγ). |
| 7378.8 | (25/2-) | E(level): Kπ=7/2- band, α=+1/2 (1994Ca04). 25/2- state added by. | |
| 7910.8 | (27/2-) | E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. | |
| 10021.9 | (31/2-) | E(level): Kπ=7/2- band, α=-1/2 (1998Be69,1994Ca04). 1998Be69. |
| E(level) | E(gamma) | Comments |
| 98.28 | 98.2 | E(γ): weighted average of 98.2 2 in 47Mn β+ decay and 98.5 7 in 48Fe εp decay M(γ): d from γ(θ) in 10B(40Ca,p2nγ), Δπ=no from level scheme |
| 173.4 | 74.7 | E(γ): from 47Mn β+ decay | 173.4 | E(γ): from 47Mn β+ decay |
| 2654.1 | 1322.3 | M(γ): Q from γγ(θ) in 10B(40Ca,p2nγ); M2 excluded by comparison to RUL. |
| 4138.7 | 1485 | M(γ): Q from γγ(θ) in 10B(40Ca,p2nγ); M2 excluded by comparison to RUL. |
| 5904.8 | 1766.0 | M(γ): Q from γγ(θ) in 10B(40Ca,p2nγ); M2 excluded by comparison to RUL. |
| 7378.8 | 1474 | E(γ): From 24Mg(28Si,αnγ) |
| 7910.8 | 532 | E(γ): From 24Mg(28Si,αnγ) | 2006 | E(γ): From 24Mg(28Si,αnγ) |
| 10021.9 | 2111 | E(γ): From 24Mg(28Si,αnγ). Placed from a 9841, 31/2- level in 10B(40Ca,p2nγ) |
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