ADOPTED LEVELS, GAMMAS for 245Am
Author: C.D. Nesaraja | Citation: Nucl. Data Sheets 189, 1 (2023) | Cutoff date: 14-Feb-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=895.9 keV 15 | S(n)= 6050.0 keV 19 | S(p)= 5194.6 keV 29 | Q(α)= 5.16×103 keV 10 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 245Pu β- decay | B | 249Bk α decay |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 5/2+ | 2.05 h 1 % β- = 100 | |||||
| 19.209 10 | AB | 7/2+ | ||||||
| 28.27 13 | AB | (5/2-) | 28 1 | 100 | (E1) | 0.0 | 5/2+ | |
| 47.083 12 | AB | (9/2+) | ||||||
| 70.40 8 | AB | (7/2-) | ||||||
| 87.66 4 | AB | (11/2+) | ||||||
| 124.65 8 | AB | (9/2-) | ||||||
| 134.48 11 | AB | (13/2+) | ||||||
| 154.5 25 | B | (3/2-) | ||||||
| 187.0 25 | B | (5/2-) | ||||||
| 190.74 12 | A | (11/2-) | ||||||
| 231.7 25 | B | (7/2-) | ||||||
| 292.7 25 | B | (9/2-) | ||||||
| 327.421 8 | AB | 7/2+ | 280.385 13 308.222 8 327.428 8 | 5.1 5 19.3 20 100 10 | (M1+E2) M1(+E2) M1(+E2) | 47.083 19.209 0.0 | (9/2+) 7/2+ 5/2+ | |
| 395.887 11 | AB | 9/2+ | 308.222? 348.782 9 376.676 3 395.87 15 | 30 3 100 11 3.2 11 | [M1] (M1) [E2] | 87.66 47.083 19.209 0.0 | (11/2+) (9/2+) 7/2+ 5/2+ | |
| 475.531 22 | AB | 11/2+ | 341.00 15 387.879 32 428.438 22 | 19 3 55 13 100 9 | [M1] [M1] [M1] | 134.48 87.66 47.083 | (13/2+) (11/2+) (9/2+) | |
| 563.04 20 | A | (13/2+) | 428.438? 475.1 6 | 100 43 | [M1] | 134.48 87.66 | (13/2+) (11/2+) | |
| 887.472 13 | A | (7/2+) | 411.935 41 491.591 9 560.134 49 762.73 10 799.87 10 817.04 10 840.56 10 859.53 15 868.8 4 887.14? | 9.1 9 50 6 100 9 13.1 13 29 3 15.6 16 23.8 25 9.4 9 2.2 6 | [E2] (E2) (E2) [E1] [E2] [E1] [E1] | 475.531 395.887 327.421 124.65 87.66 70.40 47.083 28.27 19.209 0.0 | 11/2+ 9/2+ 7/2+ (9/2-) (11/2+) (7/2-) (9/2+) (5/2-) 7/2+ 5/2+ | |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 920.97 6 | AB | (9/2+,11/2+) | 357.90 20 445.34 10 525.08 15 593.7 6 730.40 20 786.54 15 796.37 17 833.14 20 874.16 20 901.9 8 | 12 3 58 9 52 6 6 3 36 6 71 10 48 13 ≤100 26 6 10 5 | [M1] [M1] [E1] [E1] | 563.04 475.531 395.887 327.421 190.74 134.48 124.65 87.66 47.083 19.209 | (13/2+) 11/2+ 9/2+ 7/2+ (11/2-) (13/2+) (9/2-) (11/2+) (9/2+) 7/2+ | |
| 957.420 15 | A | (9/2+) | 481.9 10 560.134 49 ? 630.102 14 766.59 15 824? 833.14 20 870.5 5 887.14 15 910.46 7 938.4 2 957.59 15 | 0.5 25 100 13 13.1 19 <1 ≤19 2.5 13 26 3 51 5 38 6 36 4 | [M1] M1 [E1] | 475.531 395.887 327.421 190.74 134.48 124.65 87.66 70.40 47.083 19.209 0.0 | 11/2+ 9/2+ 7/2+ (11/2-) (13/2+) (9/2-) (11/2+) (7/2-) (9/2+) 7/2+ 5/2+ | |
| 987.52 4 | A | (7/2+,9/2+) | 511.5 10 591.6 3 660.082 42 917.0 5 941.0 10 968.5 7 987.60 10 | 2.6 13 12.8 26 64 9 6.4 26 19 13 2.6 13 100 10 | 475.531 395.887 327.421 70.40 47.083 19.209 0.0 | 11/2+ 9/2+ 7/2+ (7/2-) (9/2+) 7/2+ 5/2+ | ||
| 1025.971 18 | A | (7/2+,9/2-) | 549.2 6 630.102 14 ? 696.8 4 899.3 10 953 2 977.2 2 996.0 3 1005.1 3 | 9 4 22 9 9 4 4.3 22 100 43 53 9 70 26 | 475.531 395.887 327.421 124.65 70.40 47.083 28.27 19.209 | 11/2+ 9/2+ 7/2+ (9/2-) (7/2-) (9/2+) (5/2-) 7/2+ | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1065.23 8 | A | 669.28 10 737.96 20 930.3 6 977.2? 1018.33 20 | 33 5 21 5 4.9 25 100 13 | 395.887 327.421 134.48 87.66 47.083 | 9/2+ 7/2+ (13/2+) (11/2+) (9/2+) | |||
| 1111.22 18 | A | 1023.32 20 1040.2 12 1083.9 5 1111.9 5 | 100 19 1.2 6 6.3 13 10.0 13 | 87.66 70.40 28.27 0.0 | (11/2+) (7/2-) (5/2-) 5/2+ | |||
| 1185.58 30 | A | 1051.3 8 1097.9 7 1138.5 5 1166.3 5 | 10 3 33 10 83 13 100 13 | 134.48 87.66 47.083 19.209 | (13/2+) (11/2+) (9/2+) 7/2+ | |||
| 2.4E+3 4 | 640 ns 60 % SF ≤ 100 | |||||||
E(level): From least-squares fit to Eγ data by the evaluator except as noted
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - π5/2[642] band | |||||||
| 0.0 | 5/2+ | 2.05 h 1 % β- = 100 | |||||
| 19.209 10 | 7/2+ | ||||||
| 47.083 12 | (9/2+) | ||||||
| 87.66 4 | (11/2+) | ||||||
| 134.48 11 | (13/2+) | ||||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - π5/2[523] band | |||||||
| 28.27 13 | (5/2-) | ||||||
| 70.40 8 | (7/2-) | ||||||
| 124.65 8 | (9/2-) | ||||||
| 190.74 12 | (11/2-) | ||||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - π3/2[521] band | |||||||
| 154.5 25 | (3/2-) | ||||||
| 187.0 25 | (5/2-) | ||||||
| 231.7 25 | (7/2-) | ||||||
| 292.7 25 | (9/2-) | ||||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 4 - π7/2[633] band | |||||||
| 327.421 8 | 7/2+ | ||||||
| 395.887 11 | 9/2+ | ||||||
| 475.531 22 | 11/2+ | 341.00 15 387.879 32 428.438 22 | 19 3 55 13 100 9 | [M1] [M1] [M1] | 134.48 87.66 47.083 | (13/2+) (11/2+) (9/2+) | |
| 563.04 20 | (13/2+) | ||||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
| 28.27 | (5/2-) | 28 1 | (E1) | 3.8 | α=3.8 4, α(L)=2.78 27, α(M)=0.73 7, α(N)=0.195 20, α(O)=0.044 4, α(P)=0.0059 5, α(Q)=0.000138 10 | ||
| 327.421 | 7/2+ | 280.385 13 | (M1+E2) | 0.7 +7-6 | 1.1 | α=1.1 4, α(K)=0.9 4, α(L)=0.21 4, α(M)=0.054 8, α(N)=0.0147 20, α(O)=0.0037 5, α(P)=0.00068 13, α(Q)=3.6×10-5 15 | |
| 7/2+ | 308.222 8 | M1(+E2) | 0.6 9 | 0.9 | α=0.9 4, α(K)=0.7 4, α(L)=0.17 4, α(M)=0.041 9, α(N)=0.0113 24, α(O)=0.0028 6, α(P)=5.3×10-4 14, α(Q)=3.0E-5 15 | ||
| 7/2+ | 327.428 8 | M1(+E2) | 0.5 7 | 0.85 | α=0.85 33, α(K)=0.66 29, α(L)=0.145 34, α(M)=0.036 7, α(N)=0.0098 20, α(O)=0.0025 5, α(P)=0.00046 11, α(Q)=2.7×10-5 11 | ||
| 395.887 | 9/2+ | 348.782 9 | [M1] | 0.862 | α=0.862 12, α(K)=0.680 10, α(L)=0.1365 19, α(M)=0.0332 5, α(N)=0.00908 13, α(O)=0.002286 32, α(P)=0.000437 6, α(Q)=2.77×10-5 4 | ||
| 9/2+ | 376.676 3 | (M1) | 0.698 | α=0.698 10, α(K)=0.551 8, α(L)=0.1104 15, α(M)=0.0269 4, α(N)=0.00734 10, α(O)=0.001849 26, α(P)=0.000353 5, α(Q)=2.241×10-5 31 | |||
| 9/2+ | 395.87 15 | [E2] | 0.1004 | α=0.1004 14, α(K)=0.0482 7, α(L)=0.0382 5, α(M)=0.01033 15, α(N)=0.00285 4, α(O)=0.000691 10, α(P)=0.0001187 17, α(Q)=2.505×10-6 35 | |||
| 475.531 | 11/2+ | 341.00 15 | [M1] | 0.917 | α=0.917 13, α(K)=0.724 10, α(L)=0.1453 20, α(M)=0.0354 5, α(N)=0.00967 14, α(O)=0.002434 34, α(P)=0.000465 7, α(Q)=2.95×10-5 4 | ||
| 11/2+ | 387.879 32 | [M1] | 0.644 | α=0.644 9, α(K)=0.509 7, α(L)=0.1019 14, α(M)=0.02479 35, α(N)=0.00677 9, α(O)=0.001705 24, α(P)=0.000326 5, α(Q)=2.067×10-5 29 | |||
| 11/2+ | 428.438 22 | [M1] | 0.491 | α=0.491 7, α(K)=0.388 5, α(L)=0.0775 11, α(M)=0.01886 26, α(N)=0.00515 7, α(O)=0.001297 18, α(P)=0.0002481 35, α(Q)=1.573×10-5 22 | |||
| 563.04 | (13/2+) | 475.1 6 | [M1] | 0.371 | α=0.371 5, α(K)=0.293 4, α(L)=0.0584 8, α(M)=0.01421 20, α(N)=0.00388 6, α(O)=0.000977 14, α(P)=0.0001869 27, α(Q)=1.185×10-5 17 | ||
| 887.472 | (7/2+) | 411.935 41 | [E2] | 0.0903 | α=0.0903 13, α(K)=0.0450 6, α(L)=0.0332 5, α(M)=0.00896 13, α(N)=0.002470 35, α(O)=0.000600 8, α(P)=0.0001034 14, α(Q)=2.293×10-6 32 | ||
| (7/2+) | 491.591 9 | (E2) | 0.0579 | α=0.0579 8, α(K)=0.0329 5, α(L)=0.01835 26, α(M)=0.00489 7, α(N)=0.001345 19, α(O)=0.000328 5, α(P)=5.74×10-5 8, α(Q)=1.564E-6 22 | |||
| (7/2+) | 560.134 49 | (E2) | 0.0427 | α=0.0427 6, α(K)=0.0262 4, α(L)=0.01217 17, α(M)=0.00321 4, α(N)=0.000882 12, α(O)=0.0002158 30, α(P)=3.81×10-5 5, α(Q)=1.191E-6 17 | |||
| (7/2+) | 762.73 10 | [E1] | 0.00677 | α=0.00677 9, α(K)=0.00548 8, α(L)=0.000978 14, α(M)=0.0002346 33, α(N)=6.37×10-5 9, α(O)=1.593E-5 22, α(P)=2.98E-6 4, α(Q)=1.772E-7 25 | |||
| (7/2+) | 799.87 10 | [E2] | 0.02015 | α=0.02015 28, α(K)=0.01416 20, α(L)=0.00445 6, α(M)=0.001139 16, α(N)=0.000312 4, α(O)=7.71×10-5 11, α(P)=1.400E-5 20, α(Q)=5.86E-7 8 | |||
| (7/2+) | 817.04 10 | [E1] | 0.00599 | α=0.00599 8, α(K)=0.00485 7, α(L)=0.000861 12, α(M)=0.0002063 29, α(N)=5.60×10-5 8, α(O)=1.401E-5 20, α(P)=2.63E-6 4, α(Q)=1.575E-7 22 | |||
| (7/2+) | 859.53 15 | [E1] | 0.00548 | α=0.00548 8, α(K)=0.00444 6, α(L)=0.000784 11, α(M)=0.0001878 26, α(N)=5.10×10-5 7, α(O)=1.276E-5 18, α(P)=2.399E-6 34, α(Q)=1.446E-7 20 | |||
| 920.97 | (9/2+,11/2+) | 445.34 10 | [M1] | 0.442 | α=0.442 6, α(K)=0.349 5, α(L)=0.0697 10, α(M)=0.01696 24, α(N)=0.00464 6, α(O)=0.001167 16, α(P)=0.0002231 31, α(Q)=1.414×10-5 20 | ||
| (9/2+,11/2+) | 525.08 15 | [M1] | 0.283 | α=0.283 4, α(K)=0.2237 31, α(L)=0.0445 6, α(M)=0.01082 15, α(N)=0.00296 4, α(O)=0.000744 10, α(P)=0.0001423 20, α(Q)=9.02×10-6 13 | |||
| (9/2+,11/2+) | 730.40 20 | [E1] | 0.00732 | α=0.00732 10, α(K)=0.00592 8, α(L)=0.001061 15, α(M)=0.000255 4, α(N)=6.92×10-5 10, α(O)=1.728E-5 24, α(P)=3.23E-6 5, α(Q)=1.909E-7 27 | |||
| (9/2+,11/2+) | 796.37 17 | [E1] | 0.00627 | α=0.00627 9, α(K)=0.00508 7, α(L)=0.000903 13, α(M)=0.0002164 30, α(N)=5.88×10-5 8, α(O)=1.470E-5 21, α(P)=2.76E-6 4, α(Q)=1.645E-7 23 | |||
| 957.420 | (9/2+) | 481.9 10 | [M1] | 0.357 | α=0.357 5, α(K)=0.282 4, α(L)=0.0562 8, α(M)=0.01367 21, α(N)=0.00373 6, α(O)=0.000940 14, α(P)=0.0001798 27, α(Q)=1.140×10-5 17 | ||
| (9/2+) | 630.102 14 | M1 | 0.1730 | α=0.1730 24, α(K)=0.1370 19, α(L)=0.0271 4, α(M)=0.00659 9, α(N)=0.001801 25, α(O)=0.000453 6, α(P)=8.67×10-5 12, α(Q)=5.50E-6 8 | |||
| (9/2+) | 766.59 15 | [E1] | 0.00671 | α=0.00671 9, α(K)=0.00543 8, α(L)=0.000969 14, α(M)=0.0002324 33, α(N)=6.31×10-5 9, α(O)=1.578E-5 22, α(P)=2.96E-6 4, α(Q)=1.756E-7 25 | |||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 5/2+ | 2.05 h 1 % β- = 100 | E(level): π5/2[642] band. |
| 19.209 | 7/2+ | E(level): π5/2[642] band. | |
| 28.27 | (5/2-) | E(level): π5/2[523] band. | |
| 47.083 | (9/2+) | E(level): π5/2[642] band. | |
| 70.40 | (7/2-) | E(level): π5/2[523] band. | |
| 87.66 | (11/2+) | E(level): π5/2[642] band. | |
| 124.65 | (9/2-) | E(level): π5/2[523] band. | |
| 134.48 | (13/2+) | E(level): π5/2[642] band. | |
| 154.5 | (3/2-) | E(level): π3/2[521] band. | |
| 187.0 | (5/2-) | E(level): π3/2[521] band. | |
| 190.74 | (11/2-) | E(level): π5/2[523] band. | |
| 231.7 | (7/2-) | E(level): π3/2[521] band. | |
| 292.7 | (9/2-) | E(level): π3/2[521] band. | |
| 327.421 | 7/2+ | E(level): π7/2[633] band. | |
| 395.887 | 9/2+ | E(level): π7/2[633] band. | |
| 475.531 | 11/2+ | E(level): π7/2[633] band. | |
| 563.04 | (13/2+) | E(level): π7/2[633] band. | |
| 2.4E+3 | 640 ns 60 % SF ≤ 100 | Only SF decay mode was observed. See 244Pu(t,2n) (1972Br35), 244Pu(α,p2n) (1972Wo07). E(level): Only SF decay mode was observed. See 244Pu(t,2n) (1972Br35), 244Pu(α,p2n) (1972Wo07). |
| E(level) | E(gamma) | Comments |
| 327.421 | 308.222 | E(γ): Multiply placed |
| 395.887 | 308.222 | E(γ): Multiply placed |
| 475.531 | 428.438 | E(γ): Multiply placed |
| 563.04 | 428.438 | E(γ): Multiply placed |
| 887.472 | 560.134 | E(γ): Multiply placed | 887.14 | E(γ): Multiply placed |
| 920.97 | 833.14 | E(γ): Multiply placed |
| 957.420 | 560.134 | E(γ): Multiply placed | 630.102 | E(γ): Multiply placed | 833.14 | E(γ): Multiply placed | 887.14 | E(γ): Multiply placed |
| 1025.971 | 630.102 | E(γ): Multiply placed | 977.2 | E(γ): Multiply placed |
| 1065.23 | 977.2 | E(γ): Multiply placed |