ADOPTED LEVELS, GAMMAS for 139Xe
Authors: P.K. Joshi, B. Singh, S. Singh, A.K. Jain | Citation: Nucl. Data Sheets 138, 1 (2016) | Cutoff date: 15-Oct-2016
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=5057 keV 4 | S(n)= 3744 keV 4 | S(p)= 10954 keV 6 | Q(α)= -342 keV 3 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 139I β- decay (2.280 S) | B | 140I β-n decay (0.86 S) |
| C | 248Cm SF decay | D | 252Cf SF decay |
| E | 235U(n,Fγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDE | 3/2- | 39.68 s 14 % β- = 100 | |||||
| 22.74 8 | A CDE | (7/2-) | 22.8 2 S | | [E2] | 0.0 | 3/2- | |
| 31.703 20 | A CD | (5/2-) | 31.70 2 | 100 | M1+E2 | 0.0 | 3/2- | |
| 559.43 9 | A CD | (9/2-) | 527.81 14 536.80 14 | 100 3 67 2 | E2 | 31.703 22.74 | (5/2-) (7/2-) | |
| 593.96 9 | A CDE | (11/2-) | 571.13 10 | 100 | E2 | 22.74 | (7/2-) | |
| 624.26 9 | A | (5/2-) | 592.6 2 601.5 2 624.3 2 | 100 3 76 3 6.2 3 | 31.703 22.74 0.0 | (5/2-) (7/2-) 3/2- | ||
| 670.02 12 | A | (3/2-,5/2,7/2-) | 638.5 2 647.1 2 ? 670.4 2 | 100 3 46.9 16 | 31.703 22.74 0.0 | (5/2-) (7/2-) 3/2- | ||
| 678.75 9 | A C | (9/2-) | 84.80 2 646.85 25 655.9 2 | 3.45 17 24.5 9 100 3 | [M1,E2] | 593.96 31.703 22.74 | (11/2-) (5/2-) (7/2-) | |
| 1008.27 10 | A | (5/2,7/2,9/2) | 329.6 2 384.0 2 448.9 2 976.4 2 985.4 2 | 2.2 2 1.8 2 2.4 2 100 4 36 2 | 678.75 624.26 559.43 31.703 22.74 | (9/2-) (5/2-) (9/2-) (5/2-) (7/2-) | ||
| 1059.02 15 | A | (3/2-,5/2,7/2) | 389.1 2 ? 1027.3 2 1036.3 2 1059.4 2 ? | 35 1 13.6 5 100 5 7.7 5 | 670.02 31.703 22.74 0.0 | (3/2-,5/2,7/2-) (5/2-) (7/2-) 3/2- | ||
| 1086.20 19 | CD | (13/2-) | 407.8 491.3 5 525.8 6 | 24 4 100 12 12 4 | (M1+E2) | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | |
| 1179.34 12 | CDE | (15/2-) | 585.34 10 | 100 | (E2) | 593.96 | (11/2-) | |
| 1193.33 11 | A | (3/2-,5/2,7/2) | 1161.4 2 1170.4 2 1193.3 2 | 100 3 37 1 41 1 | 31.703 22.74 0.0 | (5/2-) (7/2-) 3/2- | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1194.70 13 | C | (13/2-) | 516.0 600.5 635.5 | 17 8 100 33 50 17 | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | ||
| 1312.70 16 | A | 634.0 2 ? 719.1 2 752.9 2 | 62 4 100 4 58 4 | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | |||
| 1399.47 10 | A | (3/2-,5/2,7/2) | 730.0 2 774.1 2 ? 1367.4 2 1376.9 2 1399.6 2 | 85 3 100 3 79 3 68 3 44.1 15 | 670.02 624.26 31.703 22.74 0.0 | (3/2-,5/2,7/2-) (5/2-) (5/2-) (7/2-) 3/2- | ||
| 1418.02 14 | C | (11/2+) | 739.0 824.2 858.7 | 58 25 100 33 83 42 | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | ||
| 1444.14 13 | A | (7/2,9/2) | 849.5 2 1412.6 2 1421.9 2 | 24.6 8 100 3 32.3 15 | 593.96 31.703 22.74 | (11/2-) (5/2-) (7/2-) | ||
| 1448.52 11 | A | (7/2,9/2) | 440.0 2 769.8 2 824.8 2 854.4 2 1425.6 2 | 1.2 2 26.0 8 6.0 2 100 4 28.0 8 | 1008.27 678.75 624.26 593.96 22.74 | (5/2,7/2,9/2) (9/2-) (5/2-) (11/2-) (7/2-) | ||
| 1493.35 16 | A | 899.4 2 933.9 2 | 30.9 23 100 2 | 593.96 559.43 | (11/2-) (9/2-) | |||
| 1512.35 17 | CD | (13/2+) | 918.41 17 | 100 | D | 593.96 | (11/2-) | |
| 1576.91 15 | CD | (17/2-) | 397.52 11 491.3 5 | 100 8 54 8 | M1+E2 (E2) | 1179.34 1086.20 | (15/2-) (13/2-) | |
| 1684.04 9 | A | (5/2,7/2,9/2) | 675.7 2 1005.6 2 1124.5 2 1652.5 2 1661.5 2 | 4.0 5 26 1 9.0 5 22 1 100 5 | 1008.27 678.75 559.43 31.703 22.74 | (5/2,7/2,9/2) (9/2-) (9/2-) (5/2-) (7/2-) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1771.43 9 | A | 87.40 2 763.3 2 1146.9 2 1212.2 2 | 50 5 100 5 90 8 45 5 | 1684.04 1008.27 624.26 559.43 | (5/2,7/2,9/2) (5/2,7/2,9/2) (5/2-) (9/2-) | |||
| 1809.73 15 | CDE | (19/2-) | 232.79 20 630.38 10 | 12 3 100 9 | (E2) | 1576.91 1179.34 | (17/2-) (15/2-) | |
| 1861.95 16 | C | (17/2-) | 667.3 682.5 | 25 13 100 25 | 1194.70 1179.34 | (13/2-) (15/2-) | ||
| 1894.43 15 | A | 1862.8 2 1871.6 2 | 100 3 11 3 | 31.703 22.74 | (5/2-) (7/2-) | |||
| 2014.50 15 | CD | (17/2+) | 152.5 502.17 20 835.16 14 | 14 4 14 3 100 13 | D | 1861.95 1512.35 1179.34 | (17/2-) (13/2+) (15/2-) | |
| 2158.70 17 | CD | (21/2-) | 348.99 20 581.78 12 | 47 7 100 10 | D (E2) | 1809.73 1576.91 | (19/2-) (17/2-) | |
| 2192.82 19 | CD | (19/2-) | 383.0 3 1013.6 2 | 45 14 100 25 | 1809.73 1179.34 | (19/2-) (15/2-) | ||
| 2307.93 13 | A | 859.4 2 1628.7 2 1714.1 2 1748.8 2 | 86.4 23 ≤23 40.9 23 100.0 23 | 1448.52 678.75 593.96 559.43 | (7/2,9/2) (9/2-) (11/2-) (9/2-) | |||
| 2500.01 18 | CD | (23/2-) | 341.3 2 690.23 14 | 27 10 100 10 | D (E2) | 2158.70 1809.73 | (21/2-) (19/2-) | |
| 2574.98 18 | CD | (21/2+) | 416.3 560.45 21 765.24 20 | 14 7 100 14 86 15 | (Q) D | 2158.70 2014.50 1809.73 | (21/2-) (17/2+) (19/2-) | |
| 2740.18 14 | A | 969.4 2 1546.4 2 2115.7 2 | 57.9 13 100 3 89.5 26 | 1771.43 1193.33 624.26 | (3/2-,5/2,7/2) (5/2-) | |||
| 2898.45 12 | A | 1499.5 2 2866.5 2 2898.1 2 | ≤50 100 5 100 5 | 1399.47 31.703 0.0 | (3/2-,5/2,7/2) (5/2-) 3/2- | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2921.68 21 | CD | (25/2-) | 763.02 14 | 100 | 2158.70 | (21/2-) | ||
| 2925.37 21 | CD | 425.1 3 732.63 19 1115.7 3 | 100 10 44 9 | 2500.01 2192.82 1809.73 | (23/2-) (19/2-) (19/2-) | |||
| 2993.78 24 | C | 835.0 | 100 | 2158.70 | (21/2-) | |||
| 3161.47 20 | CD | (27/2-) | 661.51 12 | 100 | 2500.01 | (23/2-) | ||
| 3211.71 21 | CD | (25/2+) | 636.72 18 711.51 22 | 100 24 92 34 | D | 2574.98 2500.01 | (21/2+) (23/2-) | |
| 3305.1 3 | D | 805.04 22 | 100 | 2500.01 | (23/2-) | |||
| 3547.9 3 | CD | (27/2+) | 554.0 626.32 25 | 48 24 100 32 | 2993.78 2921.68 | (25/2-) | ||
| 3585.9 3 | CD | (29/2-) | 664.21 14 | 100 | 2921.68 | (25/2-) | ||
| 3607.7 4 | D | 682.30 26 | 100 | 2925.37 | ||||
| 3792.81 23 | CD | (29/2+) | 580.97 18 631.5 | 100 56 111 56 | 3211.71 3161.47 | (25/2+) (27/2-) | ||
| 4022.9 3 | CD | (31/2-) | 861.45 18 | 100 | 3161.47 | (27/2-) | ||
| 4232.4 3 | CD | (33/2-) | 646.52 13 | 100 | 3585.9 | (29/2-) | ||
| 4298.9 4 | C | 713.0 | 100 | 3585.9 | (29/2-) | |||
| 4412.4 3 | D | (33/2+) | 619.63 15 | | 3792.81 | (29/2+) | ||
| 4984.9 5 ? | D | (35/2-) | 962.0 4 ? | | 4022.9 | (31/2-) | ||
| 5096.3 4 | CD | (37/2-) | 863.89 14 | 100 | 4232.4 | (33/2-) | ||
| 6091.3 5 ? | D | (41/2-) | 995.0 4 ? | | 5096.3 | (37/2-) | ||
E(level): From least-squares fit to Eγ data, ΔEγ=0.2 keV assumed when not given. Reduced χ2=2.0 is somewhat larger than critical χ2=1.5. The 849.5 and 969.4 gamma rays deviate by about 3 σ values
Jπ(level): From γγ(θ) and directional polarization in 248Cm SF decay and assumption that, since fission predominately populates yrast states, the J values generally increase with excitation energy (2002Ur04). Also it is assumed that transitions of unknown multipolarity are dipole or E2; M2 is not allowed from estimated T<10 ns for levels populated in 248Cm SF decay
T1/2(level): From γ(t), T1/2<10 ns for excited states in 248Cm SF decay (2002Ur04)
M(γ): From γγ(θ) and γ(lin pol) in 248Cm SF decay, except as stated. Also comparison to RUL from a comment by 2002Ur04 in 238Cm SF decay that T1/2<10 ns for all excited states, which excludes M2 for Eγ<700 keV or so.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Band based on (7/2-) | |||||||
| 22.74 8 | (7/2-) | ||||||
| 593.96 9 | (11/2-) | 571.13 10 | 100 | E2 | 22.74 | (7/2-) | |
| 1179.34 12 | (15/2-) | 585.34 10 | 100 | (E2) | 593.96 | (11/2-) | |
| 1809.73 15 | (19/2-) | 232.79 20 630.38 10 | 12 3 100 9 | (E2) | 1576.91 1179.34 | (17/2-) (15/2-) | |
| 2500.01 18 | (23/2-) | 341.3 2 690.23 14 | 27 10 100 10 | D (E2) | 2158.70 1809.73 | (21/2-) (19/2-) | |
| 3161.47 20 | (27/2-) | 661.51 12 | 100 | 2500.01 | (23/2-) | ||
| 4022.9 3 | (31/2-) | 861.45 18 | 100 | 3161.47 | (27/2-) | ||
| 4984.9 5 | (35/2-) | 962.0 4 ? | | 4022.9 | (31/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - Band based on 5/2-. | |||||||
| 31.703 20 | (5/2-) | ||||||
| 559.43 9 | (9/2-) | 527.81 14 536.80 14 | 100 3 67 2 | E2 | 31.703 22.74 | (5/2-) (7/2-) | |
| 1194.70 13 | (13/2-) | 516.0 600.5 635.5 | 17 8 100 33 50 17 | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | ||
| 1861.95 16 | (17/2-) | 667.3 682.5 | 25 13 100 25 | 1194.70 1179.34 | (13/2-) (15/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - Band based on 9/2-. | |||||||
| 678.75 9 | (9/2-) | ||||||
| 1086.20 19 | (13/2-) | 407.8 491.3 5 525.8 6 | 24 4 100 12 12 4 | (M1+E2) | 678.75 593.96 559.43 | (9/2-) (11/2-) (9/2-) | |
| 1576.91 15 | (17/2-) | 397.52 11 491.3 5 | 100 8 54 8 | M1+E2 (E2) | 1179.34 1086.20 | (15/2-) (13/2-) | |
| 2158.70 17 | (21/2-) | 348.99 20 581.78 12 | 47 7 100 10 | D (E2) | 1809.73 1576.91 | (19/2-) (17/2-) | |
| 2921.68 21 | (25/2-) | 763.02 14 | 100 | 2158.70 | (21/2-) | ||
| 3585.9 3 | (29/2-) | 664.21 14 | 100 | 2921.68 | (25/2-) | ||
| 4232.4 3 | (33/2-) | 646.52 13 | 100 | 3585.9 | (29/2-) | ||
| 5096.3 4 | (37/2-) | 863.89 14 | 100 | 4232.4 | (33/2-) | ||
| 6091.3 5 | (41/2-) | 995.0 4 ? | | 5096.3 | (37/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 4 - Band based on 13/2+. | |||||||
| 1512.35 17 | (13/2+) | ||||||
| 2014.50 15 | (17/2+) | 152.5 502.17 20 835.16 14 | 14 4 14 3 100 13 | D | 1861.95 1512.35 1179.34 | (17/2-) (13/2+) (15/2-) | |
| 2574.98 18 | (21/2+) | 416.3 560.45 21 765.24 20 | 14 7 100 14 86 15 | (Q) D | 2158.70 2014.50 1809.73 | (21/2-) (17/2+) (19/2-) | |
| 3211.71 21 | (25/2+) | 636.72 18 711.51 22 | 100 24 92 34 | D | 2574.98 2500.01 | (21/2+) (23/2-) | |
| 3792.81 23 | (29/2+) | 580.97 18 631.5 | 100 56 111 56 | 3211.71 3161.47 | (25/2+) (27/2-) | ||
| 4412.4 3 | (33/2+) | 619.63 15 | | 3792.81 | (29/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
| 22.74 | (7/2-) | 22.8 2 | [E2] | 694 | α=694, α(L)=550 8, α(M)=118.5 17, α(N)=23.1 4, α(O)=2.16 3 | ||
| 31.703 | (5/2-) | 31.70 2 | M1+E2 | 0.9 AP | 62.5 | α62.5 AP, α(L)=6.E1 6, α(M)=12 12, α(N)=2.3 23, α(O)=0.22 21 | |
| 593.96 | (11/2-) | 571.13 10 | E2 | 0.00625 | α=0.00625 9 | ||
| 678.75 | (9/2-) | 84.80 2 | [M1,E2] | 2.3 | α=2.3 10, α(K)=1.6 5, α(L)=0.6 5, α(M)=0.12 10, α(N)=0.024 19, α(O)=0.0025 18 | ||
| 1576.91 | (17/2-) | 397.52 11 | M1+E2 | 0.0186 | α=0.0186 12 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 3/2- | 39.68 s 14 % β- = 100 | μ=-0.304 10 (1989Bo03,2014StZZ), Q=+0.39 2 (1989Bo03,2016St14) RMS charge radius <r2>1/2=4.841 fm 10 (2013An02 evaluation). |
| 22.74 | (7/2-) | E(level): Band based on (7/2-). Jπ(level): From systematics of n=85 isotones. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 31.703 | (5/2-) | E(level): Band based on 5/2-. Jπ(level): From systematics of n=85 isotones. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 559.43 | (9/2-) | E(level): Band based on 5/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 593.96 | (11/2-) | E(level): Band based on (7/2-). Jπ(level): 1997Zh23 propose π=+ in 252Cf SF decay. | |
| 624.26 | (5/2-) | Jπ(level): From systematics of n=85 isotones. | |
| 670.02 | (3/2-,5/2,7/2-) | Jπ(level): Gammas to 3/2- and (7/2-); |=3/2+ from log ft<11 from (7/2+) in 139I β- decay. | |
| 678.75 | (9/2-) | E(level): Band based on 9/2-. | |
| 1059.02 | (3/2-,5/2,7/2) | Jπ(level): Gammas to 3/2- and (7/2-); |=3/2+ from log ft<11 from (7/2+) in 139I β- decay. | |
| 1086.20 | (13/2-) | E(level): Band based on 9/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 1179.34 | (15/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 1194.70 | (13/2-) | E(level): Band based on 5/2-. | |
| 1399.47 | (3/2-,5/2,7/2) | Jπ(level): Gammas to 3/2- and (7/2-); |=3/2+ from log ft<11 from (7/2+) in 139I β- decay. | |
| 1444.14 | (7/2,9/2) | Jπ(level): Gammas to (5/2-) and (11/2-). | |
| 1448.52 | (7/2,9/2) | Jπ(level): Gammas to (5/2-) and (11/2-). | |
| 1512.35 | (13/2+) | E(level): Band based on 13/2+. Jπ(level): From ΔJ=1 cascade and that the 13/2 state is non-yrast and is populated in fission suggesting opposite parity to the 13/2-. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 1576.91 | (17/2-) | E(level): Band based on 9/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 1809.73 | (19/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 1861.95 | (17/2-) | E(level): Band based on 5/2-. | |
| 2014.50 | (17/2+) | E(level): Band based on 13/2+. Jπ(level): From ΔJ=1 cascade and that the 13/2 state is non-yrast and is populated in fission suggesting opposite parity to the 13/2-. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 2158.70 | (21/2-) | E(level): Band based on 9/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 2192.82 | (19/2-) | Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 2500.01 | (23/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 2574.98 | (21/2+) | E(level): Band based on 13/2+. Jπ(level): From ΔJ=1 cascade and that the 13/2 state is non-yrast and is populated in fission suggesting opposite parity to the 13/2-. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 2921.68 | (25/2-) | E(level): Band based on 9/2-. Jπ(level): 1997Zh23 propose π=+ in 252Cf SF decay. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 3161.47 | (27/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 3211.71 | (25/2+) | E(level): Band based on 13/2+. Jπ(level): From ΔJ=1 cascade and that the 13/2 state is non-yrast and is populated in fission suggesting opposite parity to the 13/2-. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 3547.9 | (27/2+) | Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 3585.9 | (29/2-) | E(level): Band based on 9/2-. Jπ(level): 1997Zh23 propose π=+ in 252Cf SF decay. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 3792.81 | (29/2+) | E(level): Band based on 13/2+. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 4022.9 | (31/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 4232.4 | (33/2-) | E(level): Band based on 9/2-. Jπ(level): 1997Zh23 propose π=+ in 252Cf SF decay. From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 4412.4 | (33/2+) | E(level): Band based on 13/2+. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 4984.9 | (35/2-) | E(level): Band based on (7/2-). Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 5096.3 | (37/2-) | E(level): Band based on 9/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. | |
| 6091.3 | (41/2-) | E(level): Band based on 9/2-. Jπ(level): From 2002Lu08 based on band structure, previous assignments for low lying levels and decay pattern with the assumption of ascending spins with excitation energy. These differ from those suggested by 1997Zh23 in 252Cf SF decay for the 1085.8 and higher states. |
| E(level) | E(gamma) | Comments |
| 22.74 | 22.8 | M(γ): [E2] leads to an intensity balancing problem for the 22.8 level in β- decay. |
| 1086.20 | 491.3 | E(γ): unweighted average of the two values | 525.8 | E(γ): unweighted average of the two values |
| 1444.14 | 849.5 | E(γ): poor fit, level-energy difference=850.2 |
| 1576.91 | 491.3 | E(γ): unweighted average of the two values |
| 2158.70 | 348.99 | I(γ): from 248Cm SF decay. Other: 14 6 from 252Cf SF decay seems discrepant |
| 2192.82 | 383.0 | E(γ): unweighted average of the two values |
| 2574.98 | 765.24 | I(γ): from 248Cm SF decay. Other: 200 82 in 252Cf SF decay |
| 2740.18 | 969.4 | E(γ): poor fit, level-energy difference=968.8 |
| 2925.37 | 425.1 | E(γ): γ from 252Cf SF decay only |
2012Va02: precise mass measurement
2007Ji14, 2006Ks01: theoretical calculations of level properties
Gammas: See 139I β- decay for many unplaced gammas.
Q-value: S(2n)=9403.8 21, S(2p)=20918 3 (2012Wa38)