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Phys. Rev. Lett. 31, 647–650 (1973)

X-Ray Identification of Element 104

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C. E. Bemis, Jr., R. J. Silva, D. C. Hensley, O. L. Keller, Jr., J. R. Tarrant, L. D. Hunt, P. F. Dittner*, R. L. Hahn†, and C. D. Goodman‡
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

Received 25 June 1973; published in the issue dated 3 September 1973

The daughter x-ray identification technique has been applied to the identification of element 104. The characteristic K-series x rays from the α-decay daughter isotope, nobelium (Z=102), have been observed in coincidence with α particles from the decay of 4.5-sec 257104, thus providing an unequivocal determination of the parent atomic number, Z=104.

© 1973 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.31.647
DOI:
10.1103/PhysRevLett.31.647
PACS:

*Present address: Institut für Anorganische Chemie und Kernchemie, Universität Mainz, Mainz, West Germany.

†Present address: Institut de Physique Nucléaire, Université Paris-Sud, Orsay, France.

‡Present address: Nuclear Physics Laboratory, University of Colorado, Boulder, Colo. 80302.

 
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