ADOPTED LEVELS, GAMMAS for 243Cf
Authors: C.D. Nesaraja, E.A. Mccutchan | Citation: Nucl. Data Sheets 121, 695 (2014) | Cutoff date: 30-Sep-2013
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-3757 keV SY | S(n)= 6467 keV SY | S(p)= 4033 keV SY | Q(α)= 7418 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 247Fm α decay (31 S) | B | 247Fm α decay (5.1 S) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | M(γ) | Final Levels | |
| 0.0 | AB | (1/2+) | 10.7 m 5 % ε ≈ 86 % α ≈ 14 | ||||
| ≈7 | A | (3/2+) | |||||
| ≈67 | A | (5/2+) | |||||
| ≈149 | A | (5/2+) | 82.2 2 141.8 2 | (M1) | 67 7 | (5/2+) (3/2+) | |
| ≈193 | A | (7/2+) | |||||
| ≈315 | A | (7/2+) | 121.8 2 166.6 2 | (M1) | 193 149 | (7/2+) (5/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 149 | (5/2+) | 141.8 2 | (M1) | 14.00 | α=14.00, α(K)=10.88 16, α(L)=2.33 4, α(M)=0.573 9, α(N)=0.1589 24, α(O)=0.0412 6, α(P)=0.00797 12, α(Q)=0.000469 7 | |
| 315 | (7/2+) | 166.6 2 | (M1) | 8.89 | α=8.89, α(K)=6.93 10, α(L)=1.471 22, α(M)=0.362 6, α(N)=0.1002 15, α(O)=0.0260 4, α(P)=0.00502 8, α(Q)=0.000295 5 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (1/2+) | 10.7 m 5 % ε ≈ 86 % α ≈ 14 | E(level): Proposed band based on 1/2+[631] Nilsson level. |
| 7 | (3/2+) | E(level): Proposed band based on 1/2+[631] Nilsson level. | |
| 67 | (5/2+) | E(level): Proposed band based on 1/2+[631] Nilsson level. | |
| 149 | (5/2+) | E(level): Proposed band based on 5/2+[622] Nilsson level. | |
| 193 | (7/2+) | E(level): Proposed band based on 5/2+[622] Nilsson level. | |
| 315 | (7/2+) | E(level): Proposed bandhead of 7/2+[624] Nilsson level. |
First identification: 1967Fi04 using 242Cm,244Cm(3He,xn) followed by chemical separation and 1967Si08 using 235U,236U(12C,xn) with excitation function.
Theoretical calculations:
2013Zd01: T1/2 for α decay calculated with phenomenological model based on Gamow theory with WKB approximation for Coulomb barrier penetration.
2012Zh01: β2, β4, moment of inertia, alignments calculated with a particle conserving method based on the cranked shell model.
2012Po01: calculated α decay T1/2 with a universal decay law using α-like R matrix theory.
2011Ad15: calculations of one-quasi-particle states
2009Sa25: calculated Q(α) and T1/2 within the Coulomb and Proximity Potential model.
2008Th05: calculated E(K x-ray) using a Dirac Hartree Fock model.
2005Pa73: single quasi-particle energies calculated in a macroscopic-microscopic model.
2005Si10,2005Si26: calculated σ and fission ratio for 236U(12C,5n) using a statistical model with shell effects.
1994EfZW: calculation of spontaneous fission partial T1/2.
1983Ga20: calculated mass excess differences with a macroscopic-microscopic model.
Q-value: ΔQ(β-)=236; ΔS(n)=115; ΔS(p)=230; ΔQ(α)=100 (2012Wa38)
Q-value: S(2n)=14478 syst 201; S(2p)=7290 syst 114 (2012Wa38)