99-Es-255  basic  n-XS summary  XS graphs  element

99-einsteinium-255 Atomic Mass: 255.0902664 +- 0.0000119 amu Excess Mass: 84082.584 +- 11.066 keV Binding Energy: 1896651.745 +- 11.072 keV Beta Decay Energy: B- 289.620 +- 10.247 keV "The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995. Spin: (7/2+) Half life: 39.8 d Mode of decay: Beta to Fm-255 Branch ratio: 92.00 % Decay energy: 0.288 MeV Mode of decay: Alpha to Bk-251 Branch ratio: 8.00 % Decay energy: 6.436 MeV Mode of decay: SF Branch ratio: 0.0041 % Possible parent nuclides: Beta from Cf-255 R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)