Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 116. Not illustrated. Chapters: Nobelium-248, Nobelium-249, Nobelium-250, Nobelium-251, Nobelium-252, Nobelium-253, Nobelium-254, Nobelium-255, Nobelium-256, Nobelium-257, Nobelium-258, Nobelium-259, Nobelium-260, Nobelium-261, Nobelium-262, Nobelium-263, Nobelium-264. Excerpt: Nobelium (No) has no stable isotopes. A standard atomic mass cannot be given. Pb(Ca,xn)No (x=1,2,3,4) This cold fusion reaction was first studied in 1979 at the FLNR. Further work in 1988 at the GSI measured EC and SF branchings in No. In 1989, the FLNR used the reaction to measure SF decay characteristics for the two isomers of No. The measurement of the 2n excitation function was reported in 2001 by Yuri Oganessian at the FLNR. Patin et al. at the LBNL reported in 2002 the synthesis of No in the 1-4n exit channels and measured further decay data for these isotopes. The reaction has recently been used at the Jyvaskylan Yliopisto Fysiikan Laitos (JYFL) using the RITU set-up to study K-isomerism in No. The scientists were able to measure two K-isomers with half-lives of 275 ms and 198 µs, respectively. They were assigned to 8 and 16 K-isomeric levels. The reaction was used in 2004-5 at the FLNR to study the spectroscopy of No. The team were able to confirm an isomeric level in No with a half-life of 43.5 µs. Pb(Ca,xn)No (x=2) This reaction was studied in 2003 at the FLNR in a study of the spectroscopy of No. Pb(Ca,xn)No (x=2) The measurement of the 2n excitation function for this reaction was reported in 2001 by Yuri Oganessian and co-workers at the FLNR. The reaction was used in 2004-5 to study the spectroscopy of No. Pb(Ca,xn)No (x=1,2,3,4) The measurement of the 1-4n excitation functions for this reaction were reported in 2001 by Yuri Oganessian and co-workers at the FLNR. The 2n channel was further studied by the GSI to provide a spectroscopic determina...
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