ADOPTED LEVELS, GAMMAS for 148Pr
Author: N. Nica | Citation: Nucl. Data Sheets 208, 1 (2026) | Cutoff date: 17-Jan-2026
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=4873 keV 15 | S(n)= 5163 keV 22 | S(p)= 7811 keV 17 | Q(α)= -111 keV 20 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 148Ce β- decay | B | 148Pr IT decay |
| C | 252Cf SF decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 1- | 2.29 m 2 % β- = 100 | |||||
| 76.80 20 | AB | 4- | 2.01 m 7 % IT = 36 10 % β- = 64 10 | 76.8 2 | 100 | M3 | 0.0 | 1- |
| 98.166 3 | A | 1-,2-,3- | 98.166 3 | 100 | E2 | 0.0 | 1- | |
| 98.967 20 | A | 0-,1-,2- | 98.99 3 | 100 | M1 | 0.0 | 1- | |
| 105.161 19 | A | (0,1,2)- | 105.20 3 | 100 | M1,E2 | 0.0 | 1- | |
| 121.169 3 | A | 0-,1-,2- | 121.169 3 | 100 | M1,E2 | 0.0 | 1- | |
| 195.993 13 | A | 1- | 74.5 5 90.89 3 98.0 1 195.977 14 | 2.1 10 31.5 18 19.7 13 100 5 | M1 | 121.169 105.161 98.166 0.0 | 0-,1-,2- (0,1,2)- 1-,2-,3- 1- | |
| 273.744 25 | A | 0+,1+,2+ | 168.52 4 273.77 5 | 6.1 9 100 5 | E1 | 105.161 0.0 | (0,1,2)- 1- | |
| 287.20 5 | A | 188.5 3 287.17 10 | 63 6 100 9 | 98.967 0.0 | 0-,1-,2- 1- | |||
| 289.656 19 | A | (0,1,2)+ | 184.53 4 191.6 1 289.64 6 | 29.1 15 29.1 18 100 6 | E1 | 105.161 98.166 0.0 | (0,1,2)- 1-,2-,3- 1- | |
| 332.75 9 | A | 332.7 1 | 100 | 0.0 | 1- | |||
| 352.70 8 | A | - | 231.6 2 247.52 9 352.4 2 | 19 4 53 6 100 11 | M1,E2 | 121.169 105.161 0.0 | 0-,1-,2- (0,1,2)- 1- | |
| 390.684 19 | A | 1+ | 101.029 4 103.2 1 116.92 3 194.69 5 269.52 5 285.5 1 291.724 17 390.79 16 | 21.1 11 1.5 15 22.1 12 23.6 3 100 5 4.7 5 98 5 7.8 14 | M1,E2 M1,E2 E1 E1 | 289.656 287.20 273.744 195.993 121.169 105.161 98.967 0.0 | (0,1,2)+ 0+,1+,2+ 1- 0-,1-,2- (0,1,2)- 0-,1-,2- 1- | |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 467.77 9 | A | 193.8 2 271.5 2 346.3 2 369.09 12 | 21 4 41 6 36 4 100 14 | 273.744 195.993 121.169 98.967 | 0+,1+,2+ 1- 0-,1-,2- 0-,1-,2- | |||
| 520.83 4 | A | 1+ | 167.8 2 187.9 2 233.71 5 324.85 5 399.43 19 421.778 62 | 14.6 16 19.9 11 13 13 100 5 10 3 48.1 24 | 352.70 332.75 287.20 195.993 121.169 98.967 | - 1- 0-,1-,2- 0-,1-,2- | ||
| 626.36 20 | A | 521.2 2 | 100 | 105.161 | (0,1,2)- | |||
| 765.46 11 | A | 1+ | 375.0 2 478.17 12 | 51 11 100 15 | 390.684 287.20 | 1+ | ||
| 0.0+X | C | |||||||
| 137.6+X 5 | C | 137.6 5 | | 0.0+X | ||||
| 357.5+X 7 | C | 219.9 5 | | 137.6+X | ||||
| 489.6+X 9 | C | 132.1 5 | | 357.5+X | ||||
| 780.1+X 10 | C | 290.5 5 | | 489.6+X | ||||
| 1215.3+X 12 | C | 435.2 5 | | 780.1+X | ||||
| 1761.7+X 13 | C | 546.4 5 | | 1215.3+X | ||||
E(level): From a least-squares fit to Eγ data (reduced χ2=1.95> critical χ2=1.76)
M(γ): From α(K)exp in 148Ce β- decay, except if noted otherwise
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Sequence based on 357.5+x level | |||||||
| 357.5+X 7 | |||||||
| 489.6+X 9 | 132.1 5 | | 357.5+X | ||||
| 780.1+X 10 | 290.5 5 | | 489.6+X | ||||
| 1215.3+X 12 | 435.2 5 | | 780.1+X | ||||
| 1761.7+X 13 | 546.4 5 | | 1215.3+X | ||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 76.80 | 4- | 2.01 m 7 % IT = 36 10 % β- = 64 10 | 76.8 2 | M3 | 354 | B(M3)(W.u.)=0.045 13, α=354 7, α(K)=167.6 28, α(L)=142.4 29, α(M)=34.9 7, α(N)=7.81 16, α(O)=1.147 23, α(P)=0.0446 9 |
| 98.166 | 1-,2-,3- | 98.166 3 | E2 | 2.264 | α=2.264 32, α(K)=1.279 18, α(L)=0.770 11, α(M)=0.1735 24, α(N)=0.0375 5, α(O)=0.00523 7, α(P)=6.65×10-5 9 | |
| 98.967 | 0-,1-,2- | 98.99 3 | M1 | 1.333 | α=1.333 19, α(K)=1.135 16, α(L)=0.1566 22, α(M)=0.0330 5, α(N)=0.00738 10, α(O)=0.001188 17, α(P)=8.72×10-5 12 | |
| 105.161 | (0,1,2)- | 105.20 3 | M1,E2 | 1.44 | α=1.44 32, α(K)=1.00 5, α(L)=0.35 22, α(M)=0.08 5, α(N)=0.017 11, α(O)=0.0024 14, α(P)=6.4×10-5 9 | |
| 121.169 | 0-,1-,2- | 121.169 3 | M1,E2 | 0.91 | α=0.91 16, α(K)=0.661 24, α(L)=0.20 11, α(M)=0.043 25, α(N)=0.009 5, α(O)=0.0014 7, α(P)=4.3×10-5 6 | |
| 195.993 | 1- | 90.89 3 | M1 | 1.703 | α=1.703 24, α(K)=1.449 20, α(L)=0.2002 28, α(M)=0.0422 6, α(N)=0.00944 13, α(O)=0.001518 21, α(P)=0.0001113 16 | |
| 273.744 | 0+,1+,2+ | 273.77 5 | E1 | 0.01645 | α=0.01645 23, α(K)=0.01409 20, α(L)=0.001865 26, α(M)=0.000390 5, α(N)=8.67×10-5 12, α(O)=1.374E-5 19, α(P)=9.38E-7 13 | |
| 289.656 | (0,1,2)+ | 184.53 4 | E1 | 0.0469 | α=0.0469 7, α(K)=0.0401 6, α(L)=0.00541 8, α(M)=0.001132 16, α(N)=0.0002508 35, α(O)=3.94×10-5 6, α(P)=2.57E-6 4 | |
| 352.70 | - | 231.6 2 | M1,E2 | 0.121 | α=0.121 5, α(K)=0.098 9, α(L)=0.0178 33, α(M)=0.0038 8, α(N)=0.00084 16, α(O)=0.000129 20, α(P)=6.9×10-6 13 | |
| 390.684 | 1+ | 101.029 4 | M1,E2 | 1.7 | α=1.7 4, α(K)=1.12 6, α(L)=0.41 26, α(M)=0.09 6, α(N)=0.020 13, α(O)=0.0029 17, α(P)=7.2×10-5 10 | |
| 1+ | 116.92 3 | M1,E2 | 1.02 | α=1.02 19, α(K)=0.735 30, α(L)=0.23 13, α(M)=0.050 29, α(N)=0.011 6, α(O)=0.0016 8, α(P)=4.8×10-5 7 | ||
| 1+ | 269.52 5 | E1 | 0.01713 | α=0.01713 24, α(K)=0.01468 21, α(L)=0.001943 27, α(M)=0.000407 6, α(N)=9.04×10-5 13, α(O)=1.431E-5 20, α(P)=9.75E-7 14 | ||
| 1+ | 291.724 17 | E1 | 0.01396 | α=0.01396 20, α(K)=0.01197 17, α(L)=0.001579 22, α(M)=0.000331 5, α(N)=7.35×10-5 10, α(O)=1.165E-5 16, α(P)=8.00E-7 11 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| E(level) | E(gamma) | Comments |
| 76.80 | 76.8 | M(γ): from α(K)exp and α(L)exp in 148Pr IT decay |