Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 114, 1041 (2013) |  Cutoff date: 1-Aug-2011 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=-2509 keV SYS(n)= 7002 keV SYS(p)= 2915 keV SYQ(α)= 8584 keV SY
Reference: 2012WA38

  A  263Db α decay  B  259Rf ε decay

General Comments:

Calculations, compilations:

Favored α decay: 1993Bu09

g.s. properties: 2009Do22, 2008Do12, 1997Mo25, 1995Mo29

Pion decay: 1988Io05

Single-particle Nilsson levels: 1994Cw02, 2004Pa40

Fission: 1999Zh10

Nuclear reactions: 248Cm(15N,4n) (2010AsZY, 2004Wa10)

Calculated half-life: 2010Si27, 2008Do12

Calculated fission half-life: 2005Re16, 2000Ho27.

1994Cw02 calculates the following single particle level sequence: g.s. 7/2[514], 0.08 MeV 1/2[521], 0.13 MeV 9/2[624], 0.73 MeV 5/2[642], 0.83 MeV 7/2[633]

Assignment: 248Cm(15N,4n), excit (1971Es01). 248Cm(15N,4n), parent of 255Md (α-α correlation), grandparent of 255Fm (1992Gr02)

SF mass distribution broadly symmetric with total kinetic energy 200 10 (1992Gr02), 216 3 (1992Ha22)

Q-value: Estimated ΔQ(β-)=101, ΔS(n)=124, ΔS(p)=123, ΔQ(α)=71 (2012Wa38)

XREF T1/2(level)
  0.0 B 6.2 s 3 
% α = 78 2
% SF = 22 2

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Additional Level Data and Comments:


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