ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract M x-ray —L x-ray coincidence measurements with high resolution, cooled Si(Li) x-ray detectors were made on transitions following the alpha decays of228Th,232U,238Pu, and244Cm, in order to determine the meanM-subshell fluorescence yields. The values obtained are:v 4 M =0.032±0.002, andv 5 M =0.024±0.002 atZ=88;v 1 M =0.038±0.003,v 4 M =0.042±0.002, andv 5 M =0.038±0.002 atZ=90;v 1 M =0.047±0.002,v 4 M =0.048±0.002, andv 5 M =0.044±0.002 atZ=92;v 1 M =0.066±0.002,v 4 M =0.062±0.002, andv 5 M =0.063±0.002 atZ=94. The quantityΩ 1 M +f 12 MΩ 2 M was measured as (56±10)×10−4, (62±12)×10−4, (99±18) ×10−4, and (93±15)×10−4 forZ=88, 90, 92, and 94, respectively, which agree well with the calculations of McGuire. The radiativeL 1-L 3 transition intensity was measured for the four atomic numbers and found to be consistently less than the calculations of Scofield by about 45 percent.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01676786
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