ADOPTED LEVELS, GAMMAS for 71Se
Authors: Khalifeh Abusaleem, Balraj Singh | Citation: Nucl. Data Sheets 112, 133 (2011) | Cutoff date: 30-Nov-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-6644 keV 6 | S(n)= 9288 keV 4 | S(p)= 6.09×103 keV 5 | Q(α)= -2913 keV 6 | ||
Reference: 2012WA38 |
References: | |||
A | 71Br ε decay (21.4 S) | B | 58Ni(16O,2pnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB | (5/2-) | 4.74 m 5 % ε = 100 | |||||
48.79 5 | AB | (1/2-) | 5.6 µs 7 | 48.78 5 | 100 | E2 | 0.0 | (5/2-) |
171.52 6 | A | 122.72 5 171.6 1 | 83 6 100 8 | 48.79 0.0 | (1/2-) (5/2-) | |||
260.48 10 | AB | (9/2+) | 19.0 µs 5 | 260.5 1 | 100 | [M2] | 0.0 | (5/2-) |
282.44 8 | AB | (3/2-) | 233.7 1 282.4 1 | 100 7 38 7 | 48.79 0.0 | (1/2-) (5/2-) | ||
647.80 18 | A | 387.4 2 647.6 3 | 100 14 71 14 | 260.48 0.0 | (9/2+) (5/2-) | |||
756.97 15 | AB | 474.6 2 756.9 2 | 52 8 100 10 | 282.44 0.0 | (3/2-) (5/2-) | |||
796.4 4 ? | A | 796.4 4 ? | 100 | 0.0 | (5/2-) | |||
1040.6 7 | B | (7/2-) | 1.0 ps 7 | 758.2 1040.6 | 81 100 | [E2] [M1] | 282.44 0.0 | (3/2-) (5/2-) |
1154.3 9 | B | (11/2+) | 894 | 100 | (M1+E2) | 260.48 | (9/2+) | |
1298.1 9 | B | (13/2+) | 0.90 ps 28 | 1037.5 | 100 | [E2] | 260.48 | (9/2+) |
1493.5 9 | B | (13/2+) | 1233.0 | 100 | 260.48 | (9/2+) | ||
1639.3 9 | B | (13/2+) | 1378.8 | 100 | 260.48 | (9/2+) | ||
1680.5 13 | B | (11/2-) | 1.7 ps 7 | 639.9 | 100 | [E2] | 1040.6 | (7/2-) |
2326.9 10 | B | (17/2+) | 687.6 833.4 | 80 100 | 1639.3 1493.5 | (13/2+) (13/2+) | ||
2418.2 10 | B | (15/2+) | 1120 1264 | 93 100 | 1298.1 1154.3 | (13/2+) (11/2+) | ||
2448.8 12 | B | (17/2+) | 0.53 ps 21 | 1150.5 | 100 | [E2] | 1298.1 | (13/2+) |
2481.2 16 | B | (15/2-) | 0.53 ps 28 | 800.7 | 100 | [E2] | 1680.5 | (11/2-) |
3236.7 15 | B | (21/2+) | 909.8 | 100 | 2326.9 | (17/2+) | ||
3426.6 19 | B | (19/2-) | < 0.7 ps | 945.4 | 100 | [E2] | 2481.2 | (15/2-) |
3452.1 12 | B | (19/2+) | 1003 1034 | 40 100 | 2448.8 2418.2 | (17/2+) (15/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3635.3 14 | B | (21/2+) | 0.40 ps 28 | 1186.6 | 100 | [E2] | 2448.8 | (17/2+) |
4300.9 18 | B | 1064.2 | 100 | 3236.7 | (21/2+) | |||
4497.2 14 | B | (23/2+) | 862 1045 | 62 100 | 3635.3 3452.1 | (21/2+) (19/2+) | ||
4504.1 22 | B | 1077.5 | 100 | 3426.6 | (19/2-) | |||
4834.5 17 | B | (25/2+) | 1199.2 | 100 | 3635.3 | (21/2+) | ||
6035.5 20 | B | 1201.0 | 100 | 4834.5 | (25/2+) |
E(level): From least-squares fit to Eγ’s, assuming 1 keV uncertainty when not stated
Jπ(level): For levels above 200 keV populated in 58Ni(16O,2pnγ), the assignments are from those proposed in 58Ni(16O,2pnγ), based on band structures, systematics and possible angular distribution measurements. In the opinion of the evaluators, strong arguments for these assignments are lacking as no details of data are available
T1/2(level): From DSAM in 58Ni(16O,2pnγ) (1984EbZZ)
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - νg9/2 band, α=+1/2. | |||||||
260.48 10 | (9/2+) | 19.0 µs 5 | |||||
1298.1 9 | (13/2+) | 0.90 ps 28 | 1037.5 | 100 | [E2] | 260.48 | (9/2+) |
2448.8 12 | (17/2+) | 0.53 ps 21 | 1150.5 | 100 | [E2] | 1298.1 | (13/2+) |
3635.3 14 | (21/2+) | 0.40 ps 28 | 1186.6 | 100 | [E2] | 2448.8 | (17/2+) |
4834.5 17 | (25/2+) | 1199.2 | 100 | 3635.3 | (21/2+) | ||
6035.5 20 | 1201.0 | 100 | 4834.5 | (25/2+) | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - νg9/2 band, α=-1/2 | |||||||
1154.3 9 | (11/2+) | ||||||
2418.2 10 | (15/2+) | 1120 1264 | 93 100 | 1298.1 1154.3 | (13/2+) (11/2+) | ||
3452.1 12 | (19/2+) | 1003 1034 | 40 100 | 2448.8 2418.2 | (17/2+) (15/2+) | ||
4497.2 14 | (23/2+) | 862 1045 | 62 100 | 3635.3 3452.1 | (21/2+) (19/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - γ cascade based on (13/2+) | |||||||
1493.5 9 | (13/2+) | ||||||
2326.9 10 | (17/2+) | 687.6 833.4 | 80 100 | 1639.3 1493.5 | (13/2+) (13/2+) | ||
3236.7 15 | (21/2+) | 909.8 | 100 | 2326.9 | (17/2+) | ||
4300.9 18 | 1064.2 | 100 | 3236.7 | (21/2+) | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - γ cascade based on 7/2- | |||||||
1040.6 7 | (7/2-) | 1.0 ps 7 | |||||
1680.5 13 | (11/2-) | 1.7 ps 7 | 639.9 | 100 | [E2] | 1040.6 | (7/2-) |
2481.2 16 | (15/2-) | 0.53 ps 28 | 800.7 | 100 | [E2] | 1680.5 | (11/2-) |
3426.6 19 | (19/2-) | < 0.7 ps | 945.4 | 100 | [E2] | 2481.2 | (15/2-) |
4504.1 22 | 1077.5 | 100 | 3426.6 | (19/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
48.79 | (1/2-) | 5.6 µs 7 | 48.78 5 | E2 | 11.86 | B(E2)(W.u.)=1.63 21, α=11.86 | |
260.48 | (9/2+) | 19.0 µs 5 | 260.5 1 | [M2] | 0.0405 | B(M2)(W.u.)=0.0763 21, α=0.0405 | |
1040.6 | (7/2-) | 1.0 ps 7 | 758.2 | [E2] | B(E2)(W.u.)=6.×101 4 | ||
(7/2-) | 1.0 ps 7 | 1040.6 | [M1] | B(M1)(W.u.)=0.011 8 | |||
1154.3 | (11/2+) | 894 | (M1+E2) | +1.6 3 | |||
1298.1 | (13/2+) | 0.90 ps 28 | 1037.5 | [E2] | B(E2)(W.u.)=30 10 | ||
1680.5 | (11/2-) | 1.7 ps 7 | 639.9 | [E2] | B(E2)(W.u.)=1.8×102 8 | ||
2448.8 | (17/2+) | 0.53 ps 21 | 1150.5 | [E2] | B(E2)(W.u.)=30 12 | ||
2481.2 | (15/2-) | 0.53 ps 28 | 800.7 | [E2] | B(E2)(W.u.)=1.9×102 10 | ||
3426.6 | (19/2-) | < 0.7 ps | 945.4 | [E2] | B(E2)(W.u.)>61 | ||
3635.3 | (21/2+) | 0.40 ps 28 | 1186.6 | [E2] | B(E2)(W.u.)=34 25 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
260.48 | (9/2+) | 19.0 µs 5 | E(level): νg9/2 band, α=+1/2. |
1040.6 | (7/2-) | 1.0 ps 7 | E(level): γ cascade based on 7/2-. |
1154.3 | (11/2+) | E(level): νg9/2 band, α=-1/2. | |
1298.1 | (13/2+) | 0.90 ps 28 | E(level): νg9/2 band, α=+1/2. |
1493.5 | (13/2+) | E(level): γ cascade based on (13/2+). | |
1680.5 | (11/2-) | 1.7 ps 7 | E(level): γ cascade based on 7/2-. |
2326.9 | (17/2+) | E(level): γ cascade based on (13/2+). | |
2418.2 | (15/2+) | E(level): νg9/2 band, α=-1/2. | |
2448.8 | (17/2+) | 0.53 ps 21 | E(level): νg9/2 band, α=+1/2. |
2481.2 | (15/2-) | 0.53 ps 28 | E(level): γ cascade based on 7/2-. |
3236.7 | (21/2+) | E(level): γ cascade based on (13/2+). | |
3426.6 | (19/2-) | < 0.7 ps | E(level): γ cascade based on 7/2-. |
3452.1 | (19/2+) | E(level): νg9/2 band, α=-1/2. | |
3635.3 | (21/2+) | 0.40 ps 28 | E(level): νg9/2 band, α=+1/2. |
4300.9 | E(level): γ cascade based on (13/2+). | ||
4497.2 | (23/2+) | E(level): νg9/2 band, α=-1/2. | |
4504.1 | E(level): γ cascade based on 7/2-. | ||
4834.5 | (25/2+) | E(level): νg9/2 band, α=+1/2. | |
6035.5 | E(level): νg9/2 band, α=+1/2. |
E(level) | E(gamma) | Comments |
48.79 | 48.78 | M(γ): from α(K)exp in 71Br ε decay |
1957Be43: identification and production of 71Se from Cu(14N,X) reaction, measured half-life.
1957At37: identification and production of 71Se from 70Ge(α,3n) reaction, measured half-life.
Mass measurements: 2002Li24, 2001Ha66, 1998Ch20
Q-value: Note: Current evaluation has used the following Q record
Q-value: Q(εp)=129 7, s(2n)=22986 35, s(2p)=10621 7 (2009AuZZ)
Q-value: Values in 2003Au03 are: Q(β-)=-6050 570, S(n)=9140 70, S(p)=6060 60, Q(α)=-2880 30, s(2n)=22960 50, s(2p)=10590 30, Q(εp)=160 30