L-subshell fluorescence cross sections and L-subshell fluorescence yields in elements 68 <= Z <= 92 by 59.5 keV photons


Sahin M. , DEMIR L., SOGUT O., ERTUGRUL M., ICELLI O.

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, cilt.33, ss.93-98, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 33 Konu: 1
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1088/0953-4075/33/1/309
  • Dergi Adı: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
  • Sayfa Sayıları: ss.93-98

Özet

L-subshell (sigma(1), sigma(2) and sigma(3)) x-ray fluorescence cross sections were measured for Er, Ta, W, Au, Hg, T1, Pb, Bi, Th and U at an excitation energy of 59.5 keV using a Si(Li) detector coupled to a model 4096 computerized multi-channel analyser. The values of L-i-subshell fluorescence yields (omega(1), omega(2) and omega(3)) have been measured for the same elements using the previously measured cross section values and the theoretical L-i-subshell photoionization cross section Coster-Kronig transition probabilities and emission rates. It is observed that the measured L-i (i = 1, 2 and 3) subshell x-ray fluorescence cross section and L-i-subshell fluorescence yield (omega(1), omega(2) and omega(3)) values for the elements are in general agreement with the theoretical ones evaluated using L-subshell fluorescence yields and the L-subshell photoionization cross section.