K X-ray yields in 0-1 μs from 236U fragments

Kataria, S. K. ; Kapoor, S. S. ; Murthy, S. R. S. ; Rao, P. N. Rama (1970) K X-ray yields in 0-1 μs from 236U fragments Nuclear Physics A, 154 (3). pp. 458-466. ISSN 0375-9474

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037594...

Related URL: http://dx.doi.org/10.1016/0375-9474(70)90118-1


The yields of K X-rays emitted in the time range 0-1μs by fragments of specified nuclear charges have been determined in the thermal fission of 235U with a high-resolution (0.9 keV FWHM at 26.25 keV) Si(Li) spectrometer. The fission fragments were detected in nearly 2π geometry by a silicon semiconductor detector placed at a distance of 0.5 mm from the source foil to ensure that the X-rays were emitted close to the source foil after the fragments have come to rest. The spectra of K X-rays in coincidence with fission were analysed by a least-square fitting code to determine the total number of K X-rays emitted per fission from fragments of different atomic numbers. Using the known fragment charge yield, the above results were transformed to obtain the K X-ray yield per fragment as a function of fragment charge. The present results are compared with those in the time interval 0-1 ns to obtain information on the X-ray half-lives for fragment nuclei of different atomic numbers.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Nuclear Reaction
ID Code:16946
Deposited On:16 Nov 2010 13:15
Last Modified:04 Jun 2011 05:57

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