ADOPTED LEVELS, GAMMAS for 149Pr
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 185, 2 (2022) | Cutoff date: 23-Aug-2022
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=3336 keV 10 | S(n)= 6575 keV 18 | S(p)= 7930 keV 15 | Q(α)= -629 keV 16 | ||
Reference: 2021WA16 |
References: | |||
A | 149Ce β- decay (5.12 S) | B | 248Cm,252Cf SF decay |
C | 252Cf SF decay | D | 150Nd(d,3He) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCD | (5/2+) | 2.26 m 8 % β- = 100 | |||||
40 | D | |||||||
58.11 6 | ABC | (7/2-) | 23.4 ns 18 | 58.2 1 | 100 | E1 | 0.0 | (5/2+) |
80 | D | |||||||
86.40 6 | A C | (7/2+) | 4.2 ns 5 | 28.4 1 86.5 1 | >27 100 5 | [E1] M1 | 58.11 0.0 | (7/2-) (5/2+) |
106.86 7 | A | 48.8 1 106.9 1 | 100 5 7.2 4 | 58.11 0.0 | (7/2-) (5/2+) | |||
125.55 7 | A | 1.0 ns 2 | 67.4 1 125.6 1 | 100 5 0.8 3 | 58.11 0.0 | (7/2-) (5/2+) | ||
161.3 3 | BC | (11/2-) | 103.2 3 | 100 | (E2) | 58.11 | (7/2-) | |
162.97 7 | A | 56.2 1 76.5 1 104.9 1 | 27.3 21 100 5 87 4 | 106.86 86.40 58.11 | (7/2+) (7/2-) | |||
174.5 4 | C | (9/2+) | 13.2S 116.4 5 | | 161.3 58.11 | (11/2-) (7/2-) | ||
215.46 8 | A | 52.6 1 128.9 1 157.5 1 | 12.9 10 100 5 6.2 10 | 162.97 86.40 58.11 | (7/2+) (7/2-) | |||
220 | D | |||||||
230.98 8 | A | 144.9 1 172.6 1 | 100 4 66 4 | 86.40 58.11 | (7/2+) (7/2-) | |||
260 | D | |||||||
311.90 12 | A | 225.5 1 | 100 | 86.40 | (7/2+) | |||
364.9 5 | C | (11/2+) | 278.5 5 | 100 | 86.40 | (7/2+) | ||
380.27 7 | A | 294.1 1 322.2 1 380.0 1 | 21.5 11 17.0 7 100 4 | 86.40 58.11 0.0 | (7/2+) (7/2-) (5/2+) | |||
381.1 4 | BC | (15/2-) | 219.8 3 | 100 | 161.3 | (11/2-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
397.70 12 | A | 311.3 1 | 100 | 86.40 | (7/2+) | |||
406.9 4 | C | (13/2+) | 25.8S 232.4 3 245.6 3 | 100 5 100 5 | 381.1 174.5 161.3 | (15/2-) (9/2+) (11/2-) | ||
440 | D | |||||||
448.33 7 | A | 217.4 1 233.0 1 285.3 1 322.8 1 361.8 1 390.2 1 | 6.8 6 42.3 23 49.4 26 100 6 45.2 26 61 3 | 230.98 215.46 162.97 125.55 86.40 58.11 | (7/2+) (7/2-) | |||
546.16 13 | A | 330.7 1 | 100 | 215.46 | ||||
550 | D | |||||||
575.28 13 | A | 344.3 1 | 100 | 230.98 | ||||
590 | D | |||||||
660 | D | |||||||
711.4 5 | BC | (19/2-) | 330.3 3 | 100 | 381.1 | (15/2-) | ||
736.5 7 | C | (15/2+) | 371.6 5 | 100 | 364.9 | (11/2+) | ||
751.6 5 | C | (17/2+) | 344.7 5 370.5 5 | 69 5 100 10 | 406.9 381.1 | (13/2+) (15/2-) | ||
951.11 9 | A | 864.7 1 893.0 1 | 89 4 100 5 | 86.40 58.11 | (7/2+) (7/2-) | |||
980 | D | |||||||
1127.5 6 | BC | (23/2-) | 416.0 3 | 100 | 711.4 | (19/2-) | ||
1173.9 9 | C | (19/2+) | 437.4 5 | 100 | 736.5 | (15/2+) | ||
1189.0 6 | C | (21/2+) | 437.4 5 477.6 5 | 100 9 30 4 | 751.6 711.4 | (17/2+) (19/2-) | ||
1607.4 6 | BC | (27/2-) | 479.8 3 | 100 | 1127.5 | (23/2-) | ||
1664.6 10 | C | (23/2+) | 490.7 5 | 100 | 1173.9 | (19/2+) | ||
1695.3 6 | C | (25/2+) | 506.4 5 568.0 5 | 100 8 27 3 | 1189.0 1127.5 | (21/2+) (23/2-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2129.9 8 | BC | (31/2-) | 522.5 5 | 100 | 1607.4 | (27/2-) | ||
2191.9 12 | C | (27/2+) | 527.3 5 | 100 | 1664.6 | (23/2+) | ||
2230.4 7 | C | (29/2+) | 535.5 5 622.7 5 | 100 10 <13 | 1695.3 1607.4 | (25/2+) (27/2-) | ||
2664.4 10 | BC | (35/2-) | 534.5 5 | 100 | 2129.9 | (31/2-) | ||
2722.1 9 | C | (33/2+) | 491.7 5 | 100 | 2230.4 | (29/2+) | ||
3184.7 11 | BC | (39/2-) | 520.3 5 | 100 | 2664.4 | (35/2-) | ||
3723.6 12 | C | (43/2-) | 538.9 5 | 100 | 3184.7 | (39/2-) |
E(level): From a least-squares fit to Eγ data. There is some evidence of two additional nanosecond isomers, connected with 54.7γ and 143γ, which are not placed in a decay scheme.
Jπ(level): As proposed by 2015Wa28 in 252Cf SF decay, based on band structures.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - π1/2[550] band. | |||||||
58.11 6 | (7/2-) | 23.4 ns 18 | |||||
161.3 3 | (11/2-) | ||||||
381.1 4 | (15/2-) | 219.8 3 | 100 | 161.3 | (11/2-) | ||
711.4 5 | (19/2-) | ||||||
1127.5 6 | (23/2-) | 416.0 3 | 100 | 711.4 | (19/2-) | ||
1607.4 6 | (27/2-) | 479.8 3 | 100 | 1127.5 | (23/2-) | ||
2129.9 8 | (31/2-) | 522.5 5 | 100 | 1607.4 | (27/2-) | ||
2664.4 10 | (35/2-) | 534.5 5 | 100 | 2129.9 | (31/2-) | ||
3184.7 11 | (39/2-) | 520.3 5 | 100 | 2664.4 | (35/2-) | ||
3723.6 12 | (43/2-) | 538.9 5 | 100 | 3184.7 | (39/2-) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Possible octupole band. | |||||||
174.5 4 | (9/2+) | ||||||
406.9 4 | (13/2+) | ||||||
751.6 5 | (17/2+) | 344.7 5 370.5 5 | 69 5 100 10 | 406.9 381.1 | (13/2+) (15/2-) | ||
1189.0 6 | (21/2+) | ||||||
1695.3 6 | (25/2+) | 506.4 5 568.0 5 | 100 8 27 3 | 1189.0 1127.5 | (21/2+) (23/2-) | ||
2230.4 7 | (29/2+) | 535.5 5 622.7 5 | 100 10 <13 | 1695.3 1607.4 | (25/2+) (27/2-) | ||
2722.1 9 | (33/2+) | 491.7 5 | 100 | 2230.4 | (29/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - π5/2[413] band. | |||||||
0.0 | (5/2+) | 2.26 m 8 % β- = 100 | |||||
86.40 6 | (7/2+) | 4.2 ns 5 | |||||
364.9 5 | (11/2+) | 278.5 5 | 100 | 86.40 | (7/2+) | ||
736.5 7 | (15/2+) | ||||||
1173.9 9 | (19/2+) | 437.4 5 | 100 | 736.5 | (15/2+) | ||
1664.6 10 | (23/2+) | 490.7 5 | 100 | 1173.9 | (19/2+) | ||
2191.9 12 | (27/2+) | 527.3 5 | 100 | 1664.6 | (23/2+) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
58.11 | (7/2-) | 23.4 ns 18 | 58.2 1 | E1 | 1.089 | B(E1)(W.u.)=2.50E-5 +21-18, α=1.089 16 |
86.40 | (7/2+) | 4.2 ns 5 | 28.4 1 | [E1] | 1.347 | α=1.347 23 |
(7/2+) | 4.2 ns 5 | 86.5 1 | M1 | 1.963 | B(M1)(W.u.)<0.0023, α=1.963 28 | |
161.3 | (11/2-) | 103.2 3 | (E2) | 1.893 | α=1.893 33 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (5/2+) | 2.26 m 8 % β- = 100 | XREF: d(?). E(level): π5/2[413] band. |
40 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
58.11 | (7/2-) | 23.4 ns 18 | E(level): π1/2[550] band. |
80 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
86.40 | (7/2+) | 4.2 ns 5 | E(level): π5/2[413] band. |
161.3 | (11/2-) | E(level): π1/2[550] band. | |
174.5 | (9/2+) | E(level): Possible octupole band. | |
220 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
260 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
364.9 | (11/2+) | E(level): π5/2[413] band. | |
381.1 | (15/2-) | E(level): π1/2[550] band. | |
406.9 | (13/2+) | E(level): Possible octupole band. | |
440 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
550 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
590 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
660 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
711.4 | (19/2-) | E(level): π1/2[550] band. | |
736.5 | (15/2+) | E(level): π5/2[413] band. | |
751.6 | (17/2+) | E(level): Possible octupole band. | |
980 | E(level): Tentative level energy from (d,3He) (1981VaZJ report). It is possible levels are shifted in energy, due to calibration issues, as pointed out in the 150Nd(d,3He) dataset. | ||
1127.5 | (23/2-) | E(level): π1/2[550] band. | |
1173.9 | (19/2+) | E(level): π5/2[413] band. | |
1189.0 | (21/2+) | E(level): Possible octupole band. | |
1607.4 | (27/2-) | E(level): π1/2[550] band. | |
1664.6 | (23/2+) | E(level): π5/2[413] band. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
1695.3 | (25/2+) | E(level): Possible octupole band. | |
2129.9 | (31/2-) | E(level): π1/2[550] band. | |
2191.9 | (27/2+) | E(level): π5/2[413] band. | |
2230.4 | (29/2+) | E(level): Possible octupole band. | |
2664.4 | (35/2-) | E(level): π1/2[550] band. | |
2722.1 | (33/2+) | E(level): Possible octupole band. | |
3184.7 | (39/2-) | E(level): π1/2[550] band. | |
3723.6 | (43/2-) | E(level): π1/2[550] band. |
E(level) | E(gamma) | Comments |
58.11 | 58.2 | E(γ): from β- decay. Other: 58.5 3 in 252Cf SF M(γ): from ce data in 248Cm,252Cf SF (2010Rz02) |
86.40 | 86.5 | E(γ): From 149Ce β- decay I(γ): From 149Ce β- decay M(γ): from total conversion coefficient in 252Cf SF decay (2015Wa28) |
161.3 | 103.2 | M(γ): M1,E2 from total conversion coefficient in 248Cm,252Cf SF (2010Rz02), but (E2) from assigned Jπ values |
380.27 | 294.1 | E(γ): From 149Ce β- decay I(γ): From 149Ce β- decay | 322.2 | E(γ): From 149Ce β- decay I(γ): From 149Ce β- decay |
1173.9 | 437.4 | E(γ): Multiply placed |
1189.0 | 437.4 | E(γ): Multiply placed |
Production and identification of 149Pr: 1964Ho03, 1967Va14, 1973Oh08, 1977Pi06.
Mass measurements by Penning-trap method: 2006Sa56, 2004Cl07
2012Th09: theory: calculated configuration admixtures in ground state and isomer, E1 transition rate, octupole correlation and Coriolis mixing in low-lying states using quasiparticle phonon model combined with particle-rotor model.
Other theoretical studies: consult the NSR database at www.nndc.bnl.gov/nsr/ for three references for structure and one for radioactive decay listed under ’document records’ which can be accessed through web retrieval of the ENSDF database at www.nndc.bnl.gov/ensdf/
Q-value: S(2n)=11738 19, S(2p)=18939 15 (2021Wa16)