ADOPTED LEVELS, GAMMAS for 135Pm
Authors: Balraj Singh, Alexander A. Rodionov and Yuri L. Khazov | Citation: Nucl. Data Sheets 109, 517 (2008) | Cutoff date: 22-Jan-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-7.17×103 keV 17 | S(n)= 1.136×104 keV 9 | S(p)= 1.67×103 keV 7 | Q(α)= 1.85×103 keV 8 | ||
Reference: 2012WA38 |
References: | |||
A | 135Sm ε decay (10.3 S) | B | 92Mo(46Ti,3PG) |
C | 107Ag(32S,2P2NG) | D | 116Sn(24Mg,p4nγ) |
E | 136Eu εp decay (3.3 S+3.8 S) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0+X | A | (3/2+,5/2+) | 49 s 3 % ε = 100 | |||||
0+Y | C | (5/2+) | ||||||
55.38+X 12 | A | (+) | 55.4 2 | 100 | (M1,E2) | 0+X | (3/2+,5/2+) | |
68.7+Y 22 | B D | (11/2-) | 45 s 4 % ε = 100 | |||||
104.57+X 13 | A | 49.1 2 104.6 2 | 22 7 100 22 | 55.38+X 0+X | (+) (3/2+,5/2+) | |||
126.0+Y 10 | C | 126 | | 0+Y | (5/2+) | |||
181.70+X 11 | A | 77.2 2 126.3 2 181.7 2 | 36 11 100 11 25 6 | 104.57+X 55.38+X 0+X | (+) (3/2+,5/2+) | |||
251.0+Y 15 | C | 125 | | 126.0+Y | ||||
341.24+X 12 | A | 159.5 4 236.6 3 285.9 2 341.3 2 | 3 1 ≈52 100 12 ≈8 | 181.70+X 104.57+X 55.38+X 0+X | (+) (3/2+,5/2+) | |||
355.5+Y 22 | BCD | (15/2-) | 49 ps 2 | 286.8 1 | 100 | E2 | 68.7+Y | (11/2-) |
418.31+X 13 | A | 77.2 2 236.6 3 313.4 4 363.0 2 418.2 2 | ≈1 ≈54 12 4 100 12 31 6 | 341.24+X 181.70+X 104.57+X 55.38+X 0+X | (+) (3/2+,5/2+) | |||
489.0+Y 18 | C | 238 | | 251.0+Y | ||||
531.62+X 17 | A | 190.3 2 350.0 2 | 100 10 20 5 | 341.24+X 181.70+X | ||||
554.0+Y 15 | C | (11/2+) | 428 | | 126.0+Y | |||
609.85+X 21 | A | 428.2 2 | 100 | 181.70+X | ||||
725.25+X 21 | A | 115.5 3 543.5 2 | 31 8 100 19 | 609.85+X 181.70+X | ||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
754.70+X 16 | A | 573.0 2 754.7 2 | 75 20 100 25 | 181.70+X 0+X | (3/2+,5/2+) | |||
814.0+Y 20 | C | 325 | | 489.0+Y | ||||
869.2+Y 22 | BCD | (19/2-) | 4.2 ps 5 | 513.7 1 | 100 | E2 | 355.5+Y | (15/2-) |
1092.0+Y 18 | C | (15/2+) | 538 | | 554.0+Y | (11/2+) | ||
1205.0+Y 23 | C | 391 | | 814.0+Y | ||||
1232.2+Y 24 | C | 363 | | 869.2+Y | (19/2-) | |||
1242.2+Y 24 | C | (19/2+) | 373 | | 869.2+Y | (19/2-) | ||
1313.8+X 6 | A | 1132.1 5 | 100 | 181.70+X | ||||
1367.2+Y 24 | C | (21/2+) | 498 | | 869.2+Y | (19/2-) | ||
1527.6+Y 22 | BCD | (23/2-) | 1.7 ps 4 | 658.4 2 | 100 | E2 | 869.2+Y | (19/2-) |
1643.0+Y 25 | C | 438 | | 1205.0+Y | ||||
1657.0+Y 20 | C | (19/2+) | 565 788 | | 1092.0+Y 869.2+Y | (15/2+) (19/2-) | ||
1786+Y 3 | C | 554 | | 1232.2+Y | ||||
1855+Y 3 | C | (23/2+) | 613 | | 1242.2+Y | (19/2+) | ||
1988+Y 3 | C | (25/2+) | 621 | | 1367.2+Y | (21/2+) | ||
2062.4+Y 22 | BCD | (21/2+) | 1193.1 2 | 100 | D | 869.2+Y | (19/2-) | |
2116+Y 3 | C | 473 | | 1643.0+Y | ||||
2183.8+Y 22 | C | (23/2+) | 527 656 | | 1657.0+Y 1527.6+Y | (19/2+) (23/2-) | ||
2276.7+Y 22 | BCD | (27/2-) | 749.1 1 | 100 | (Q) | 1527.6+Y | (23/2-) | |
2346+Y 3 | C | 560 | | 1786+Y | ||||
2465.9+Y 22 | BCD | (25/2+) | 403.5 1 938.4 3 | 100 7 <96 | Q | 2062.4+Y 1527.6+Y | (21/2+) (23/2-) | |
2504+Y 3 | C | (27/2+) | 649 | | 1855+Y | (23/2+) | ||
2686+Y 3 | C | (29/2+) | 698 | | 1988+Y | (25/2+) | ||
2739.8+Y 24 | C | (27/2+) | 556 | | 2183.8+Y | (23/2+) | ||
2920+Y 3 | C | 574 | | 2346+Y | ||||
3029.6+Y 22 | CD | (29/2+) | 563.7 2 | 100 | 2465.9+Y | (25/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3081.9+Y 22 | BCD | (31/2-) | 805.2 2 | 100 | Q | 2276.7+Y | (27/2-) | |
3201+Y 3 | C | (31/2+) | 697 | | 2504+Y | (27/2+) | ||
3397+Y 3 | C | (31/2+) | 657 | | 2739.8+Y | (27/2+) | ||
3438+Y 3 | C | (33/2+) | 752 | | 2686+Y | (29/2+) | ||
3541+Y 4 | C | 621 | | 2920+Y | ||||
3769.6+Y 22 | CD | (33/2+) | 740.0 3 | 100 | 3029.6+Y | (29/2+) | ||
3929.0+Y 23 | BCD | (35/2-) | 847.1 4 | 100 | Q | 3081.9+Y | (31/2-) | |
3969+Y 4 | C | (35/2+) | 768 | | 3201+Y | (31/2+) | ||
4186+Y 3 | C | (35/2+) | 789 | | 3397+Y | (31/2+) | ||
4260+Y 4 | C | 719 | | 3541+Y | ||||
4265+Y 4 | C | (37/2+) | 827 | | 3438+Y | (33/2+) | ||
4616.6+Y 25 | C | (37/2+) | 847 | | 3769.6+Y | (33/2+) | ||
4773.1+Y 24 ? | D | (39/2-) | 844.1 9 | 100 | 3929.0+Y | (35/2-) | ||
4816+Y 4 | C | (39/2+) | 847 | | 3969+Y | (35/2+) | ||
4827.8+Y 23 | BC | (39/2-) | 898.8 4 | 100 | Q | 3929.0+Y | (35/2-) | |
5048+Y 3 | C | (39/2+) | 862 | | 4186+Y | (35/2+) | ||
5192+Y 4 | C | (41/2+) | 927 | | 4265+Y | (37/2+) | ||
5.5E3 15 | A | |||||||
5517+Y 3 | C | (41/2+) | 900 | | 4616.6+Y | (37/2+) | ||
5792.5+Y 23 | BC | (43/2-) | 964.7 4 | 100 | Q | 4827.8+Y | (39/2-) | |
5950+Y 4 | C | (43/2+) | 902 | | 5048+Y | (39/2+) | ||
6513+Y 3 | C | (45/2+) | 996 | | 5517+Y | (41/2+) | ||
6824.3+Y 25 | BC | (47/2-) | 1031.8 8 | 100 | Q | 5792.5+Y | (43/2-) |
E(level): From least-squares fit to Eγ’s
Jπ(level): For high-spin states (J>11/2) the assignments are mostly based on band assignments augmented by γγ(θ)(DCO) and γ(θ) data for selected transitions
E(γ): For high-spin levels, energies quoted with uncertainties are from 116Sn(24Mg,p4nγ) reaction, others are from 107Ag(32S,2p2nγ)
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - πh11/2 3/2[541], α=-1/2. | |||||||
68.7+Y 22 | (11/2-) | 45 s 4 % ε = 100 | |||||
355.5+Y 22 | (15/2-) | 49 ps 2 | |||||
869.2+Y 22 | (19/2-) | 4.2 ps 5 | 513.7 1 | 100 | E2 | 355.5+Y | (15/2-) |
1527.6+Y 22 | (23/2-) | 1.7 ps 4 | |||||
2276.7+Y 22 | (27/2-) | 749.1 1 | 100 | (Q) | 1527.6+Y | (23/2-) | |
3081.9+Y 22 | (31/2-) | 805.2 2 | 100 | Q | 2276.7+Y | (27/2-) | |
3929.0+Y 23 | (35/2-) | 847.1 4 | 100 | Q | 3081.9+Y | (31/2-) | |
4827.8+Y 23 | (39/2-) | 898.8 4 | 100 | Q | 3929.0+Y | (35/2-) | |
5792.5+Y 23 | (43/2-) | 964.7 4 | 100 | Q | 4827.8+Y | (39/2-) | |
6824.3+Y 25 | (47/2-) | 1031.8 8 | 100 | Q | 5792.5+Y | (43/2-) | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - band BASED ON (11/2+), α=-1/2. | |||||||
554.0+Y 15 | (11/2+) | ||||||
1092.0+Y 18 | (15/2+) | ||||||
1657.0+Y 20 | (19/2+) | 565 788 | | 1092.0+Y 869.2+Y | (15/2+) (19/2-) | ||
2183.8+Y 22 | (23/2+) | ||||||
2739.8+Y 24 | (27/2+) | 556 | | 2183.8+Y | (23/2+) | ||
3397+Y 3 | (31/2+) | 657 | | 2739.8+Y | (27/2+) | ||
4186+Y 3 | (35/2+) | 789 | | 3397+Y | (31/2+) | ||
5048+Y 3 | (39/2+) | 862 | | 4186+Y | (35/2+) | ||
5950+Y 4 | (43/2+) | 902 | | 5048+Y | (39/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Band based on (21/2+), α=+1/2. | |||||||
2062.4+Y 22 | (21/2+) | ||||||
2465.9+Y 22 | (25/2+) | ||||||
3029.6+Y 22 | (29/2+) | 563.7 2 | 100 | 2465.9+Y | (25/2+) | ||
3769.6+Y 22 | (33/2+) | ||||||
4616.6+Y 25 | (37/2+) | 847 | | 3769.6+Y | (33/2+) | ||
5517+Y 3 | (41/2+) | 900 | | 4616.6+Y | (37/2+) | ||
6513+Y 3 | (45/2+) | 996 | | 5517+Y | (41/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - band BASED ON (19/2+), α=-1/2. | |||||||
1242.2+Y 24 | (19/2+) | ||||||
1855+Y 3 | (23/2+) | ||||||
2504+Y 3 | (27/2+) | 649 | | 1855+Y | (23/2+) | ||
3201+Y 3 | (31/2+) | ||||||
3969+Y 4 | (35/2+) | 768 | | 3201+Y | (31/2+) | ||
4816+Y 4 | (39/2+) | 847 | | 3969+Y | (35/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - Band based on (21/2+), α=+1/2. | |||||||
1367.2+Y 24 | (21/2+) | ||||||
1988+Y 3 | (25/2+) | ||||||
2686+Y 3 | (29/2+) | 698 | | 1988+Y | (25/2+) | ||
3438+Y 3 | (33/2+) | ||||||
4265+Y 4 | (37/2+) | 827 | | 3438+Y | (33/2+) | ||
5192+Y 4 | (41/2+) | 927 | | 4265+Y | (37/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 6 - γ cascade. | |||||||
126.0+Y 10 | |||||||
251.0+Y 15 | |||||||
489.0+Y 18 | 238 | | 251.0+Y | ||||
814.0+Y 20 | |||||||
1205.0+Y 23 | 391 | | 814.0+Y | ||||
1643.0+Y 25 | 438 | | 1205.0+Y | ||||
2116+Y 3 | 473 | | 1643.0+Y | ||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 7 - γ cascade. | |||||||
1232.2+Y 24 | |||||||
1786+Y 3 | |||||||
2346+Y 3 | 560 | | 1786+Y | ||||
2920+Y 3 | |||||||
3541+Y 4 | 621 | | 2920+Y | ||||
4260+Y 4 | 719 | | 3541+Y |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
55.38+X | (+) | 55.4 2 | (M1,E2) | 15 | α=15 7, α(K)=5.9 15, α(L)=7 7, α(M)=1.6 15, α(N+)=0.44 | |
355.5+Y | (15/2-) | 49 ps 2 | 286.8 1 | E2 | B(E2)(W.u.)=138 6 | |
869.2+Y | (19/2-) | 4.2 ps 5 | 513.7 1 | E2 | B(E2)(W.u.)=91 11 | |
1527.6+Y | (23/2-) | 1.7 ps 4 | 658.4 2 | E2 | B(E2)(W.u.)=66 16 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0+X | (3/2+,5/2+) | 49 s 3 % ε = 100 | 1. High-spin assignments made by 1989Vi04 to low lying levels populated by 135Sm decay were based, presumably, on the identification of one common γ ray at 286 keV in 135Sm decay and in high-spin studies on 135Pm (1987Be22,1988Wa01). From γγ evidence, 1989Vi04 proposed that 286γ deexcites a level at 341 keV. Three other γ rays at 160, 237 and 341 keV also deexcited this level. In the in-beam γ study (1987Be22,1988Wa01) there is no evidence in the γγ spectra (figure 3 in 1987Be22 and figure 1 in 1988Wa01) for the existence of either the strong 237γ or the weaker (but likely to be seen by 1988Wa01 and 1987Be22) 341γ. It should also be noted that Eγ=285.9 2 (1989Vi04) in 135Sm decay does not agree with 286.8 1 (1987Be22) in in-beam study, although 1988Wa01 report 286.2 2. The γ-ray energies reported by 1988Wa01 are systematically lower by ≈1 keV as compared to those in 1987Be22. Based on the γγ evidence and γ-ray energies, the evaluators suggest that either the placement of 286γ is incorrect in 135Sm decay (1989Vi04) or that it is independent of the 286 γ seen in the in-beam studies. E(level): 1. High-spin assignments made by 1989Vi04 to low lying levels populated by 135Sm decay were based, presumably, on the identification of one common γ ray at 286 keV in 135Sm decay and in high-spin studies on 135Pm (1987Be22,1988Wa01). From γγ evidence, 1989Vi04 proposed that 286γ deexcites a level at 341 keV. Three other γ rays at 160, 237 and 341 keV also deexcited this level. In the in-beam γ study (1987Be22,1988Wa01) there is no evidence in the γγ spectra (figure 3 in 1987Be22 and figure 1 in 1988Wa01) for the existence of either the strong 237γ or the weaker (but likely to be seen by 1988Wa01 and 1987Be22) 341γ. It should also be noted that Eγ=285.9 2 (1989Vi04) in 135Sm decay does not agree with 286.8 1 (1987Be22) in in-beam study, although 1988Wa01 report 286.2 2. The γ-ray energies reported by 1988Wa01 are systematically lower by ≈1 keV as compared to those in 1987Be22. Based on the γγ evidence and γ-ray energies, the evaluators suggest that either the placement of 286γ is incorrect in 135Sm decay (1989Vi04) or that it is independent of the 286 γ seen in the in-beam studies. |
68.7+Y | (11/2-) | 45 s 4 % ε = 100 | E(level): πh11/2 3/2[541], α=-1/2. |
126.0+Y | E(level): γ cascade. | ||
251.0+Y | E(level): γ cascade. | ||
355.5+Y | (15/2-) | 49 ps 2 | E(level): πh11/2 3/2[541], α=-1/2. T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ). |
489.0+Y | E(level): γ cascade. | ||
554.0+Y | (11/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
814.0+Y | E(level): γ cascade. | ||
869.2+Y | (19/2-) | 4.2 ps 5 | E(level): πh11/2 3/2[541], α=-1/2. T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ). |
1092.0+Y | (15/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
1205.0+Y | E(level): γ cascade. | ||
1232.2+Y | E(level): γ cascade. | ||
1242.2+Y | (19/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
1367.2+Y | (21/2+) | E(level): Band based on (21/2+), α=+1/2. | |
1527.6+Y | (23/2-) | 1.7 ps 4 | E(level): πh11/2 3/2[541], α=-1/2. T1/2(level): From RDDS (1987Wa02) in 92Mo(46Ti,3pγ). |
1643.0+Y | E(level): γ cascade. | ||
1657.0+Y | (19/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
1786+Y | E(level): γ cascade. | ||
1855+Y | (23/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
1988+Y | (25/2+) | E(level): Band based on (21/2+), α=+1/2. | |
2062.4+Y | (21/2+) | E(level): Band based on (21/2+), α=+1/2. | |
2116+Y | E(level): γ cascade. | ||
2183.8+Y | (23/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
2276.7+Y | (27/2-) | E(level): πh11/2 3/2[541], α=-1/2. | |
2346+Y | E(level): γ cascade. | ||
E(level) | Jπ(level) | T1/2(level) | Comments |
2465.9+Y | (25/2+) | E(level): Band based on (21/2+), α=+1/2. | |
2504+Y | (27/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
2686+Y | (29/2+) | E(level): Band based on (21/2+), α=+1/2. | |
2739.8+Y | (27/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
2920+Y | E(level): γ cascade. | ||
3029.6+Y | (29/2+) | E(level): Band based on (21/2+), α=+1/2. | |
3081.9+Y | (31/2-) | E(level): πh11/2 3/2[541], α=-1/2. | |
3201+Y | (31/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
3397+Y | (31/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
3438+Y | (33/2+) | E(level): Band based on (21/2+), α=+1/2. | |
3541+Y | E(level): γ cascade. | ||
3769.6+Y | (33/2+) | E(level): Band based on (21/2+), α=+1/2. | |
3929.0+Y | (35/2-) | E(level): πh11/2 3/2[541], α=-1/2. | |
3969+Y | (35/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
4186+Y | (35/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
4260+Y | E(level): γ cascade. | ||
4265+Y | (37/2+) | E(level): Band based on (21/2+), α=+1/2. | |
4616.6+Y | (37/2+) | E(level): Band based on (21/2+), α=+1/2. | |
4816+Y | (39/2+) | E(level): band BASED ON (19/2+), α=-1/2. | |
4827.8+Y | (39/2-) | E(level): πh11/2 3/2[541], α=-1/2. | |
5048+Y | (39/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
5192+Y | (41/2+) | E(level): Band based on (21/2+), α=+1/2. | |
5517+Y | (41/2+) | E(level): Band based on (21/2+), α=+1/2. | |
5792.5+Y | (43/2-) | E(level): πh11/2 3/2[541], α=-1/2. | |
5950+Y | (43/2+) | E(level): band BASED ON (11/2+), α=-1/2. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
6513+Y | (45/2+) | E(level): Band based on (21/2+), α=+1/2. | |
6824.3+Y | (47/2-) | E(level): πh11/2 3/2[541], α=-1/2. |
E(level) | E(gamma) | Comments |
55.38+X | 55.4 | M(γ): estimated from α(exp) in 135Sm ε decay (1989Vi04) |
181.70+X | 77.2 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
341.24+X | 236.6 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
355.5+Y | 286.8 | M(γ): γγ(θ) and RUL(for E2 and M2) |
418.31+X | 77.2 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided | 236.6 | E(γ): Multiply placed with intensity suitably divided I(γ): Multiply placed with intensity suitably divided |
869.2+Y | 513.7 | M(γ): γγ(θ) and RUL(for E2 and M2) |
1527.6+Y | 658.4 | M(γ): γγ(θ) and RUL(for E2 and M2) |
2062.4+Y | 1193.1 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=1, dipole |
2276.7+Y | 749.1 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
2465.9+Y | 403.5 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) | 938.4 | I(γ): unresolved doublet |
3081.9+Y | 805.2 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
3929.0+Y | 847.1 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
4827.8+Y | 898.8 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
5792.5+Y | 964.7 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
6824.3+Y | 1031.8 | M(γ): γ(θ) and/or γγ(θ) indicate ΔJ=2, quadrupole (E2) |
Identical bands (systematics): 1992Zh10
Q-value: Note: Current evaluation has used the following Q record -7.12×103 17 11310 80 1620 60 1880 80 2003Au03
Q-value: Q(εp)=1250 70 (2003Au03)