ADOPTED LEVELS for 246Fm
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 112, 1833 (2011) | Cutoff date: 1-Jan-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-5.9×103 keV SY | S(n)= 8.07×103 keV SY | S(p)= 3.47×103 keV SY | Q(α)= 8377 keV 9 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 246Md ε decay:4.4 S | B | 208Pb(40Ar,2n):1.54 S |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | AB | 0+ | 1.54 s 4 % α = 93.2 6 % SF = 6.8 6 % ε ≤ 1.3 |
| 0+X | A | % ECSF > 10 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 1.54 s 4 % α = 93.2 6 % SF = 6.8 6 % ε ≤ 1.3 | from 2011Ve03. E(level): from 2011Ve03. |
| 0+X | % ECSF > 10 | Possible ε delayed SF decay from 246Md (4.4 s) (1996Ni09,2010An08). E(level): Possible ε delayed SF decay from 246Md (4.4 s) (1996Ni09,2010An08). |
Other reactions: 232Th(20Ne,6n), 232Th(22Ne,8N) E=130-150 MeV (1998Sa08).
Calculations, systematics:
α-decay. Theory: 2010Is01, 2010Ni09, 2010Wa23, 2009Ni06, 2009Sa25, 2009Sa45, 2008Do12, 2007Pe30, 2005Zh24, 2004Gm02, 2003Re32, 2002Re31, 2001Mo07, 2000Po25, 1993Bu09, 1991Bu05, 1987Po06, 1986Po18.
Deformation parameters: 1991Pa11
T1/2(SF), fission barrier. Theory: 2010Ad04, 2010Sa09, 2010Sv01, 2009Mo18, 2009St14, 2008Sa24, 2008Xu06, 2007Po01, 2006St04, 2005Xu01, 2004Ba17, 2004Bo34, 2004Ro01, 2003Po03, 2001Mo13, 1996Lo08, 1992Bh03.
Nuclear moments. Theory: 2010Vr01, 2006Wa30.
Nuclear Structure. Theory: 2006De23, 2002Pr01.
Activity produced by 208Pb(40Ar,2n) (1996Ni09,2011Ve03); 239Pu(12C,5n) (1967Nu01).
Q-value: Note: Current evaluation has used the following Q record $ -6000 syst 8074 syst 3540 syst 8378 12 2011AuZZ,2003Au03
Q-value: Estimated ΔQ(β-)=292, ΔS(n)=195, ΔS(p)=201 (2011AuZZ,2003Au03).