ADOPTED LEVELS, GAMMAS for 249Cf
Author: Khalifeh Abusaleem | Citation: Nucl. Data Sheets 112, 2129 (2011) | Cutoff date: 31-Dec-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-1.45×103 keV SY | S(n)= 5585 keV 6 | S(p)= 5.64×103 keV SY | Q(α)= 6296.1 keV 7 | ||
Reference: 2012WA38 |
References: | |||
A | 249Bk β- decay (330 d) | B | 249Es ε decay |
C | 253Fm α decay | D | 249Cf(d,d’) |
E | 249Cf(207Pb,207Pb’γ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABCDE | 9/2- | 351 y 2 % α = 100 % SF = 5.0×10-7 4 | |||||
62.48 5 | BCDE | 11/2- | 62.47 5 | | M1+E2 | 0 | 9/2- | |
136.2 3 | B DE | (13/2-) | 73.7S 136.2S | | 62.48 0 | 11/2- 9/2- | ||
144.98 5 | BC | 5/2+ | 45 µs 5 | 144.99 6 | 100 | M2+E3 | 0 | 9/2- |
187.97 6 | BCD | 7/2+ | 43.00 5 | 100 | M1 | 144.98 | 5/2+ | |
220.6 10 | CDE | (15/2-) | 158 | 100 | E2 | 62.48 | 11/2- | |
243.13 7 | BCD | 9/2+ | 55.14 5 | 100 | M1 | 187.97 | 7/2+ | |
315 3 | D | (11/2+) | ||||||
317.1 10 | DE | (17/2-) | 181 | 100 | E2 | 136.2 | (13/2-) | |
379.54 5 | B | 7/2+ | 136.37 8 191.6 1 234.6 1 379.5 1 | 0.16 4 1.00 8 0.64 8 100 6 | M1+E2 E2+M1 E1 | 243.13 187.97 144.98 0 | 9/2+ 7/2+ 5/2+ 9/2- | |
384 4 | D | (13/2+) | ||||||
416.8 4 | C | 1/2+ | 271.8 4 | 100 | E2 | 144.98 | 5/2+ | |
425.7 12 | DE | (19/2-) | 205 | 100 | 220.6 | (15/2-) | ||
437.56 6 | B | 9/2+ | 58.01 5 375.1 1 437.6 1 | 1.33 21 100 9 22.7 15 | M1+E2 E1 E1 | 379.54 62.48 0 | 7/2+ 11/2- 9/2- | |
440 4 | C | (3/2+) | ||||||
442.99 6 | B | (7/2)+ | 63.45 5 255.0 2 298.0 1 443.1 3 | 10.4 13 20 5 100 7 5.5 16 | M1(+E2) M1 M1+E2 | 379.54 187.97 144.98 0 | 7/2+ 7/2+ 5/2+ 9/2- | |
460 4 | C | (5/2+) | ||||||
500.6 3 ? | B | (9/2+) | ||||||
545.0 12 | E | (21/2-) | 228 | 100 | 317.1 | (17/2-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
550.6 10 | C | (1/2+,3/2,5/2+) | 134 405 2 | | 416.8 144.98 | 1/2+ 5/2+ | ||
≈606 | C | |||||||
668 2 | D | (13/2-) | ||||||
675.8 13 | E | (23/2-) | 250 | 100 | 425.7 | (19/2-) | ||
751 3 | D | (15/2-) | ||||||
813.21 8 | B D | (5/2)- | 370.1 2 433.7 3 625.3 2 668.3 2 813.2 1 | 1.5 5 0.67 11 1.41 14 2.6 2 100 7 | E2 | 442.99 379.54 187.97 144.98 0 | (7/2)+ 7/2+ 7/2+ 5/2+ 9/2- | |
817.9 13 | E | (25/2-) | 142 273 | | 675.8 545.0 | (23/2-) (21/2-) | ||
852.19 8 | B D | (7/2)- | 609.2 4 664.0 5 707.0 5 789.7 1 852.2 1 | ≈3 ≈1 ≈3 100 8 77 6 | E2 E2 | 243.13 187.97 144.98 62.48 0 | 9/2+ 7/2+ 5/2+ 11/2- 9/2- | |
902.51 17 | B D | (9/2-) | 766.3 3 840.0 2 902.6 3 | 103 10 100 9 19 6 | 136.2 62.48 0 | (13/2-) 11/2- 9/2- | ||
920 2 | D | (11/2+) | ||||||
962 3 | D | (11/2-) | ||||||
970.8 14 | E | (27/2-) | 153 295 | | 817.9 675.8 | (25/2-) (23/2-) | ||
992 2 | D | (13/2+) | ||||||
1007.92 7 | B D | 9/2+ | 507.3 3 565.0 2 570.3 3 628.5 2 766.3 3 ? 820.5 5 862.8 3 945.4 1 1007.9 1 | 5.5 14 28.8 23 7.4 19 28.8 23 14 2 ≈1.4 2.5 8 33 3 100 8 | M1 M1 M1(+E2) (E1) (E1) | 500.6 442.99 437.56 379.54 243.13 187.97 144.98 62.48 0 | (9/2+) (7/2)+ 9/2+ 7/2+ 9/2+ 7/2+ 5/2+ 11/2- 9/2- | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1031 5 | D | |||||||
1063 2 | D | (13/2+) | ||||||
1078 3 | D | (15/2+) | ||||||
1115 4 | D | |||||||
1134.9 15 | E | (29/2-) | 164 317 | | 970.8 817.9 | (27/2-) (25/2-) | ||
1145 3 | D | (15/2+) | ||||||
1164 4 | D | |||||||
1178 3 | D | (17/2+) | ||||||
1192 4 | D | |||||||
1199.8 4 | B | (7/2-,9/2) | 1137.3 5 1199.8 5 | ≈63 100 38 | 62.48 0 | 11/2- 9/2- | ||
1218.50 10 | B D | (7/2)- | 1218.5 1 | | M1(+E2) | 0 | 9/2- | |
1236 3 | D | (17/2+) | ||||||
1238.06 17 | B | (5/2-,7/2,9/2+) | 1093.2 3 1238.0 2 | 100 19 74 10 | 144.98 0 | 5/2+ 9/2- | ||
1251 5 | D | |||||||
1267.7 4 | B | (9/2-) | 1205.1 5 1267.8 5 | 100 20 20 7 | 62.48 0 | 11/2- 9/2- | ||
1304.3 3 | B D | 1304.3 3 | | 0 | 9/2- | |||
1308.9 16 | E | (31/2-) | 174 338 | | 1134.9 970.8 | (29/2-) (27/2-) | ||
1340 4 | D | (19/2+) | ||||||
1415 3 | D | (7/2+) | ||||||
1463 3 | D | (9/2+) | ||||||
1482 4 | D | |||||||
1493.9 16 | E | (33/2-) | 185 359 | | 1308.9 1134.9 | (31/2-) (29/2-) | ||
1498 4 | D | |||||||
1530 3 | D | (11/2+) | ||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1541 4 | D | |||||||
1603 3 | D | (13/2+) | ||||||
1648 4 | D | |||||||
1674 4 | D | |||||||
1688.9 19 | E | (35/2-) | 195 380 | 100 | 1493.9 1308.9 | (33/2-) (31/2-) | ||
1709 4 | D | |||||||
1894.9 19 | E | (37/2-) | 401 | 100 | 1493.9 | (33/2-) | ||
1914 3 | D | |||||||
2107.9 21 | E | (39/2-) | 419 | 100 | 1688.9 | (35/2-) | ||
2333.9 22 | E | (41/2-) | 439 | 100 | 1894.9 | (37/2-) | ||
2564.9 23 | E | (43/2-) | 457 | 100 | 2107.9 | (39/2-) | ||
2808.9 24 | E | (45/2-) | 475 | 100 | 2333.9 | (41/2-) | ||
3055 3 | E | (47/2-) | 490 | 100 | 2564.9 | (43/2-) | ||
3315 3 | E | (49/2-) | 506 | 100 | 2808.9 | (45/2-) |
E(level): From least-squares fit to Eγ for levels seen in decays, others from (d,d’).
I(γ): Relative photon intensity deexciting level.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - 9/2[734]. | |||||||
0 | 9/2- | 351 y 2 % α = 100 % SF = 5.0×10-7 4 | |||||
62.48 5 | 11/2- | 62.47 5 | | M1+E2 | 0 | 9/2- | |
136.2 3 | (13/2-) | 73.7S 136.2S | | 62.48 0 | 11/2- 9/2- | ||
220.6 10 | (15/2-) | 158 | 100 | E2 | 62.48 | 11/2- | |
317.1 10 | (17/2-) | 181 | 100 | E2 | 136.2 | (13/2-) | |
425.7 12 | (19/2-) | 205 | 100 | 220.6 | (15/2-) | ||
545.0 12 | (21/2-) | 228 | 100 | 317.1 | (17/2-) | ||
675.8 13 | (23/2-) | ||||||
817.9 13 | (25/2-) | 142 273 | | 675.8 545.0 | (23/2-) (21/2-) | ||
970.8 14 | (27/2-) | 153 295 | | 817.9 675.8 | (25/2-) (23/2-) | ||
1134.9 15 | (29/2-) | ||||||
1308.9 16 | (31/2-) | 174 338 | | 1134.9 970.8 | (29/2-) (27/2-) | ||
1493.9 16 | (33/2-) | 185 359 | | 1308.9 1134.9 | (31/2-) (29/2-) | ||
1688.9 19 | (35/2-) | 195 380 | 100 | 1493.9 1308.9 | (33/2-) (31/2-) | ||
1894.9 19 | (37/2-) | ||||||
2107.9 21 | (39/2-) | 419 | 100 | 1688.9 | (35/2-) | ||
2333.9 22 | (41/2-) | ||||||
2564.9 23 | (43/2-) | ||||||
2808.9 24 | (45/2-) | 475 | 100 | 2333.9 | (41/2-) | ||
3055 3 | (47/2-) | 490 | 100 | 2564.9 | (43/2-) | ||
3315 3 | (49/2-) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - 5/2[622]. | |||||||
144.98 5 | 5/2+ | 45 µs 5 | |||||
187.97 6 | 7/2+ | 43.00 5 | 100 | M1 | 144.98 | 5/2+ | |
243.13 7 | 9/2+ | 55.14 5 | 100 | M1 | 187.97 | 7/2+ | |
315 3 | (11/2+) | ||||||
384 4 | (13/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - 7/2[624]. | |||||||
379.54 5 | 7/2+ | ||||||
437.56 6 | 9/2+ | 58.01 5 375.1 1 437.6 1 | 1.33 21 100 9 22.7 15 | M1+E2 E1 E1 | 379.54 62.48 0 | 7/2+ 11/2- 9/2- | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - 1/2[620]. | |||||||
416.8 4 | 1/2+ | ||||||
440 4 | (3/2+) | ||||||
460 4 | (5/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - 7/2[613]. | |||||||
442.99 6 | (7/2)+ | ||||||
500.6 3 | (9/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 6 - 9/2[615]. | |||||||
1007.92 7 | 9/2+ | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 7 - 9/2[734]+2+ Kπ=13/2-. | |||||||
668 2 | (13/2-) | ||||||
751 3 | (15/2-) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 8 - 9/2[734]-2+ Kπ=5/2-. | |||||||
813.21 8 | (5/2)- | ||||||
852.19 8 | (7/2)- | 609.2 4 664.0 5 707.0 5 789.7 1 852.2 1 | ≈3 ≈1 ≈3 100 8 77 6 | E2 E2 | 243.13 187.97 144.98 62.48 0 | 9/2+ 7/2+ 5/2+ 11/2- 9/2- | |
902.51 17 | (9/2-) | 766.3 3 840.0 2 902.6 3 | 103 10 100 9 19 6 | 136.2 62.48 0 | (13/2-) 11/2- 9/2- | ||
962 3 | (11/2-) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 9 - 9/2[734]+1- Kπ=11/2+. | |||||||
920 2 | (11/2+) | ||||||
992 2 | (13/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 10 - 9/2[734]+2- Kπ=13/2+. | |||||||
1063 2 | (13/2+) | ||||||
1145 3 | (15/2+) | ||||||
1236 3 | (17/2+) | ||||||
1340 4 | (19/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 11 - 9/2[734]+3- Kπ=15/2+. | |||||||
1078 3 | (15/2+) | ||||||
1178 3 | (17/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 12 - 9/2[734]-1- Kπ=7/2+. | |||||||
1415 3 | (7/2+) | ||||||
1463 3 | (9/2+) | ||||||
1530 3 | (11/2+) | ||||||
1603 3 | (13/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 13 - Kπ=7/2- THREE-QUASIPARTICLE STATE. | |||||||
1218.50 10 | (7/2)- | ||||||
1267.7 4 | (9/2-) | 1205.1 5 1267.8 5 | 100 20 20 7 | 62.48 0 | 11/2- 9/2- |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
62.48 | 11/2- | 62.47 5 | M1+E2 | 0.29 3 | 47 | α=47 3, α(L)=34.6 20, α(M)=9.0 6, α(N)=2.50 16, α(O)=0.64 4, α(P)=0.115 6, α(Q)=0.00479 9, α(N+)=3.25 21 | |
144.98 | 5/2+ | 45 µs 5 | 144.99 6 | M2+E3 | 0.39 +6-8 | 64.7 | B(E3)(W.u.)=10 4, B(M2)(W.u.)=0.0034 5, α=64.7 10, α(K)=31.3 17, α(L)=24.0 14, α(M)=6.9 5, α(N)=1.96 14, α(O)=0.50 4, α(P)=0.089 5, α(Q)=0.00356 15, α(N+)=2.55 17 |
187.97 | 7/2+ | 43.00 5 | M1 | 100.4 | α=100.4, α(L)=75.2 11, α(M)=18.5 3, α(N)=5.14 8, α(O)=1.334 20, α(P)=0.258 4, α(Q)=0.01529 22, α(N+)=6.74 10 | ||
243.13 | 9/2+ | 55.14 5 | M1 | 48.3 | α=48.3, α(L)=36.2 6, α(M)=8.92 13, α(N)=2.47 4, α(O)=0.642 10, α(P)=0.1240 18, α(Q)=0.00735 11, α(N+)=3.24 5 | ||
379.54 | 7/2+ | 191.6 1 | M1+E2 | 0.52 12 | 5.0 | α=5.0 4, α(K)=3.7 4, α(L)=0.963 17, α(M)=0.244 4, α(N)=0.0677 10, α(O)=0.01740 25, α(P)=0.00326 7, α(Q)=0.000160 14, α(N+)=0.0885 13 | |
7/2+ | 234.6 1 | E2+M1 | 3.6 +13-6 | 0.83 | α=0.83 9, α(K)=0.30 8, α(L)=0.384 8, α(M)=0.1066 19, α(N)=0.0299 5, α(O)=0.00748 14, α(P)=0.00126 3, α(Q)=1.9×10-5 4, α(N+)=0.0387 7 | ||
7/2+ | 379.5 1 | E1 | 0.0281 | α=0.0281, α(K)=0.0221 4, α(L)=0.00451 7, α(M)=0.001100 16, α(N)=0.000303 5, α(O)=7.73×10-5 11, α(P)=1.422E-5 20, α(Q)=6.86E-7 10, α(N+)=0.000395 6 | |||
416.8 | 1/2+ | 271.8 4 | E2 | 0.377 | α=0.377, α(K)=0.0954 14, α(L)=0.204 3, α(M)=0.0571 9, α(N)=0.01603 25, α(O)=0.00400 6, α(P)=0.000669 11, α(Q)=7.75×10-6 12, α(N+)=0.0207 4 | ||
437.56 | 9/2+ | 58.01 5 | M1+E2 | 0.53 6 | 96 | α=96 10, α(L)=70 7, α(M)=19.1 21, α(N)=5.4 6, α(O)=1.34 15, α(P)=0.227 22, α(Q)=0.00531 20, α(N+)=6.9 8 | |
9/2+ | 375.1 1 | E1 | 0.0288 | α=0.0288, α(K)=0.0226 4, α(L)=0.00462 7, α(M)=0.001128 16, α(N)=0.000310 5, α(O)=7.93×10-5 12, α(P)=1.457E-5 21, α(Q)=7.01E-7 10, α(N+)=0.000405 6 | |||
9/2+ | 437.6 1 | E1 | 0.0212 | α=0.0212, α(K)=0.01675 24, α(L)=0.00333 5, α(M)=0.000812 12, α(N)=0.000223 4, α(O)=5.72×10-5 8, α(P)=1.059E-5 15, α(Q)=5.25E-7 8, α(N+)=0.000292 4 | |||
442.99 | (7/2)+ | 63.45 5 | M1(+E2) | 0.18 LT | 35 | α=35 3, α(L)=25.8 18, α(M)=6.4 6, α(N)=1.78 15, α(O)=0.46 4, α(P)=0.088 6, α(Q)=0.00481 9, α(N+)=2.34 19 | |
(7/2)+ | 255.0 2 | M1 | 2.69 | α=2.69, α(K)=2.10 3, α(L)=0.441 7, α(M)=0.1084 16, α(N)=0.0300 5, α(O)=0.00779 11, α(P)=0.001505 22, α(Q)=8.82×10-5 13, α(N+)=0.0394 6 | |||
(7/2)+ | 298.0 1 | M1+E2 | 0.40 17 | 1.54 | α=1.54 16, α(K)=1.18 14, α(L)=0.266 16, α(M)=0.066 4, α(N)=0.0183 10, α(O)=0.0047 3, α(P)=0.00090 6, α(Q)=5.0×10-5 6, α(N+)=0.0239 13 | ||
813.21 | (5/2)- | 813.2 1 | E2 | 0.0231 | α=0.0231, α(K)=0.01578 22, α(L)=0.00540 8, α(M)=0.001398 20, α(N)=0.000389 6, α(O)=9.92×10-5 14, α(P)=1.81E-5 3, α(Q)=6.87E-7 10, α(N+)=0.000507 8 | ||
852.19 | (7/2)- | 789.7 1 | E2 | 0.0245 | α=0.0245, α(K)=0.01658 24, α(L)=0.00583 9, α(M)=0.001515 22, α(N)=0.000422 6, α(O)=0.0001074 15, α(P)=1.96×10-5 3, α(Q)=7.27E-7 11, α(N+)=0.000549 8 | ||
(7/2)- | 852.2 1 | E2 | 0.0210 | α=0.0210, α(K)=0.01459 21, α(L)=0.00478 7, α(M)=0.001234 18, α(N)=0.000343 5, α(O)=8.75×10-5 13, α(P)=1.603E-5 23, α(Q)=6.27E-7 9, α(N+)=0.000447 7 | |||
1007.92 | 9/2+ | 565.0 2 | M1 | 0.302 | α=0.302, α(K)=0.236 4, α(L)=0.0490 7, α(M)=0.01200 17, α(N)=0.00332 5, α(O)=0.000862 12, α(P)=0.0001664 24, α(Q)=9.73×10-6 14, α(N+)=0.00436 7 | ||
9/2+ | 570.3 3 | M1 | 0.294 | α=0.294, α(K)=0.230 4, α(L)=0.0477 7, α(M)=0.01170 17, α(N)=0.00324 5, α(O)=0.000840 12, α(P)=0.0001622 23, α(Q)=9.48×10-6 14, α(N+)=0.00425 6 | |||
9/2+ | 628.5 2 | M1(+E2) | 0.8 5 | 0.15 | α=0.15 6, α(K)=0.12 5, α(L)=0.027 8, α(M)=0.0066 19, α(N)=0.0018 6, α(O)=0.00047 14, α(P)=9.E-5 3, α(Q)=4.9E-6 19, α(N+)=0.0024 7 | ||
9/2+ | 945.4 1 | (E1) | 0.00521 | α=0.00521 8, α(K)=0.00420 6, α(L)=0.000762 11, α(M)=0.000184 3, α(N)=5.05×10-5 7, α(O)=1.303E-5 19, α(P)=2.48E-6 4, α(Q)=1.385E-7 20, α(N+)=6.62E-5 10 | |||
9/2+ | 1007.9 1 | (E1) | 0.00467 | α=0.00467 7, α(K)=0.00377 6, α(L)=0.000681 10, α(M)=0.0001637 23, α(N)=4.51×10-5 7, α(O)=1.163E-5 17, α(P)=2.21E-6 3, α(Q)=1.247E-7 18, α(N+)=5.90E-5 9 | |||
1218.50 | (7/2)- | 1218.5 1 | M1(+E2) | 0.8 3 | 0.027 | α=0.027 6, α(K)=0.021 5, α(L)=0.0045 8, α(M)=0.00111 19, α(N)=0.00031 6, α(O)=7.9×10-5 14, α(P)=1.5E-5 3, α(Q)=8.6E-7 17, α(N+)=0.00041 7 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 9/2- | 351 y 2 % α = 100 % SF = 5.0×10-7 4 | μ=-0.28 (1989Ra17) E(level): 9/2[734]. |
62.48 | 11/2- | E(level): 9/2[734]. | |
136.2 | (13/2-) | E(level): 9/2[734]. | |
144.98 | 5/2+ | 45 µs 5 | E(level): 5/2[622]. |
187.97 | 7/2+ | E(level): 5/2[622]. | |
220.6 | (15/2-) | E(level): 9/2[734]. | |
243.13 | 9/2+ | E(level): 5/2[622]. | |
315 | (11/2+) | E(level): 5/2[622]. | |
317.1 | (17/2-) | E(level): 9/2[734]. | |
379.54 | 7/2+ | E(level): 7/2[624]. | |
384 | (13/2+) | E(level): 5/2[622]. | |
416.8 | 1/2+ | E(level): 1/2[620]. | |
425.7 | (19/2-) | E(level): 9/2[734]. | |
437.56 | 9/2+ | E(level): 7/2[624]. | |
440 | (3/2+) | E(level): 1/2[620]. | |
442.99 | (7/2)+ | E(level): 7/2[613]. | |
460 | (5/2+) | E(level): 1/2[620]. | |
500.6 | (9/2+) | E(level): 7/2[613]. | |
545.0 | (21/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
668 | (13/2-) | E(level): 9/2[734]+2+ Kπ=13/2-. | |
675.8 | (23/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
751 | (15/2-) | E(level): 9/2[734]+2+ Kπ=13/2-. | |
813.21 | (5/2)- | E(level): 9/2[734]-2+ Kπ=5/2-. From 253Fm α decay. Jπ(level): Strong E2 transitions from 813 and 852 levels to g.s. band, as well as high cross-sections in (d,d’) suggest that these levels are members of a 2+ collective vibration built on the 9/2[734] g.s. of 249Cf. | |
817.9 | (25/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
852.19 | (7/2)- | E(level): 9/2[734]-2+ Kπ=5/2-. From 253Fm α decay. Jπ(level): Strong E2 transitions from 813 and 852 levels to g.s. band, as well as high cross-sections in (d,d’) suggest that these levels are members of a 2+ collective vibration built on the 9/2[734] g.s. of 249Cf. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
902.51 | (9/2-) | E(level): 9/2[734]-2+ Kπ=5/2-. | |
920 | (11/2+) | E(level): 9/2[734]+1- Kπ=11/2+. | |
962 | (11/2-) | E(level): 9/2[734]-2+ Kπ=5/2-. | |
970.8 | (27/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
992 | (13/2+) | E(level): 9/2[734]+1- Kπ=11/2+. | |
1007.92 | 9/2+ | E(level): 9/2[615]. | |
1063 | (13/2+) | E(level): 9/2[734]+2- Kπ=13/2+. | |
1078 | (15/2+) | E(level): 9/2[734]+3- Kπ=15/2+. | |
1134.9 | (29/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
1145 | (15/2+) | E(level): 9/2[734]+2- Kπ=13/2+. | |
1178 | (17/2+) | E(level): 9/2[734]+3- Kπ=15/2+. | |
1218.50 | (7/2)- | E(level): Kπ=7/2- THREE-QUASIPARTICLE STATE. | |
1236 | (17/2+) | E(level): 9/2[734]+2- Kπ=13/2+. | |
1267.7 | (9/2-) | E(level): Kπ=7/2- THREE-QUASIPARTICLE STATE. | |
1308.9 | (31/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
1340 | (19/2+) | E(level): 9/2[734]+2- Kπ=13/2+. | |
1415 | (7/2+) | E(level): 9/2[734]-1- Kπ=7/2+. | |
1463 | (9/2+) | E(level): 9/2[734]-1- Kπ=7/2+. | |
1493.9 | (33/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
1530 | (11/2+) | E(level): 9/2[734]-1- Kπ=7/2+. | |
1603 | (13/2+) | E(level): 9/2[734]-1- Kπ=7/2+. | |
1688.9 | (35/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
1894.9 | (37/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
2107.9 | (39/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
2333.9 | (41/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
2564.9 | (43/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
2808.9 | (45/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
3055 | (47/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. | |
3315 | (49/2-) | E(level): 9/2[734]. Jπ(level): Member of rotational band 9/2[734]. |
E(level) | E(gamma) | Comments |
144.98 | 144.99 | M(γ): For analysis of anomalous M2 conversion coefficients, see 1993Li52 |
416.8 | 271.8 | E(γ): From 253Fm α decay M(γ): From 253Fm α decay |
550.6 | 134 | E(γ): From 253Fm α decay | 405 | E(γ): From 253Fm α decay |
902.51 | 766.3 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
1007.92 | 766.3 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
Calculations, compilations:
α decay: 2009Sa25, 2008Bi10, 1996St28, 1993Bu09, 1992Bu03, 1992Ro05
Delayed neutron yield: 1989Br25
Ground state properties: 1997Mo25, 2006Sh19
Pion decay: 1988Io05
Single-particle Nilsson levels: 2004Pa04, 1994Cw02
1994Cw02 calculate the following single-particle level sequence: g.s. 9/2[734], 0.22 MeV 7/2[624], 0.49 MeV 5/2[622], 0.62 MeV 1/2[620], 0.78 MeV 3/2[622], 0.79 MeV 7/2[613], 0.98 MeV 1/2[631], 1.05 MeV 11/2[725]
Measured relative L and M x-ray intensities: 1990Po14
Gammas: All γ data are from 249Es ε decay, unless otherwise noted
Q-value: Note: Current evaluation has used the following Q record
Q-value: -1451 syst 5585 5 5643 syst 6296.0 7 2009AuZZ
Q-value: Estimated ΔQ(β-)=30, ΔS(p)=71 (2011AuZZ)