ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract TheK andL x-rays emitted in the decay of235Np have been studied with high resolution Ge(HP) and Si(Li) detectors in coincidence, in order to obtain theL 2 andL 3 subshell fluorescence and Coster-Kronig yields atZ=92. The results are:v 2=0.630±0.036, ω2=0.560±0.033,f 23=0.147±0.010, and ω3=0.481±0.029. Results for theL 1 subshell were derived from singles spectra, by assuming a value off 13 of 0.67, and are:v 1=0.54±0.04, ω1=0.21±0.04, andf 12〈0.07. With the same assumption, theL 1/K electron capture ratio and decay energyQ ec for235Np were found to be 29.0±3.6 and 123.6±0.7 keV, respectively. RelativeL x-ray intensities forZ=92 also were measured and are compared with the theory of Scofield and with recent diffraction experiments. Electron ejection from theL shell during235Np decay has been studied byL x-ray-L x-ray coincidences and found to occur with a probability of (1.3±1.0) × 10−4 per disintegration.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01392538
