Measurement of L subshell X-ray fluorescence cross-sections at 59.54 keV and L subshell fluorescence yields for elements in the atomic range 55 <= Z <= 81

The Ll, L alpha, L beta and L gamma X-ray production cross-sections and L-i (i = 1, 2 and 3) X-ray fluorescence (XRF) cross-sections have been measure d for some elements in the atomic range 55 less than or equal to Z less tha n or equal to 81 at 59.54 keV. The values of L-i subshell fluorescence yiel ds (omega (1), omega (2) and omega (3)) have been measured for the same ele ments using the presently measured cross-sections values and the theoretica l L-i subshell photoionization cross-sections, Coster-Kronig transition pro babilities and emission rates. The measured XRF cross-sections values are i n general agreement with the theoretical values. (C) 2001 Elsevier Science B.V. All rights reserved.