ADOPTED LEVELS for 238Cm
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 127, 191 (2015) | Cutoff date: 1-Jun-2014
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-4.77×103 keV SY | S(n)= 7874 keV 72 | S(p)= 4415 keV SY | Q(α)= 6670 keV 10 | ||
Reference: 2012WA38 |
E(level) (keV) | Jπ(level) | T1/2(level) |
0.0 | 0+ | 2.2 h 4 % ε = 96.16 18 % α = 3.84 18 % SF = 0.048 2 |
35 7 | 2+ |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 0+ | 2.2 h 4 % ε = 96.16 18 % α = 3.84 18 % SF = 0.048 2 | Systematics of radius parameter r0 suggests that α branching is about 4%. Large uncertainties on measured E(α) and T1/2 give an upper limit of 10% for the α branching. E(level): Systematics of radius parameter r0 suggests that α branching is about 4%. Large uncertainties on measured E(α) and T1/2 give an upper limit of 10% for the α branching. |
Assignment: 239Pu(α,5n) chem, p 234Pu (6.1-MeV a) 1952Hi63.
2006As03: Produced in 237Np(6Li,5n), E=41-48 MeV at isol facility, measured a(t). Others (same authors): 2003Na10, 2002As08, 2002AsZX
Delayed fission after ε+β+ decay of 238Bk was observed by 1994Kr03 and 1994La25, but energy level of shape isomer is unknown.
Others:
Discovery of 238Cm: 2013Fr02.
Nuclear Reactions: 208Pb(30Si,X) 238Cm (2013Du17).
Alpha decay, calculated T1/2: 2013Ra05, 2013Se17, 2013Wi05, 2013Zd01, 2012Co10, 2012Is08, 2012Po01, 2012Pr09, 2011Zh36, 2010Is01, 2009Ni06, 2009Qi07, 2008Ro06, 2001Mo07.
Calculated Q(α): 2010Wa23
Cluster decay: 238Cm(38Si): 2012Ba25; 238Cm(30Si): 2012Ku29; 238Cm(34Si): 2012Sa31, 2011Sh13,
Fission: 2009Mo18.
Q-value: Db-=255 syst, ΔS(p)=61 syst (2012Wa38)