Study of Instrumental Factors Affecting X-Ray Isochromat Spectra |
| J.B. Pełka Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland |
| Full Text PDF |
| In the present paper a model of an apparatus function for the bremsstrahlung isochromat spectroscopy method is proposed. The study presented in this work is based on experimental results obtained with a particular spectrometer working at the quantum energy of Cr Kα1 (5414 eV). However, most of implications are general for the bremsstrahlung isochromat spectroscopy independently of particular construction of a spectrometer. From the theoretical considerations it was found that the total apparatus function, Ft, is composed of two main subfunctions in such a manner that Ft is not necessarily constant along the isochromat spectrum. The properties of the function as well as the question how it influences the measured spectra are discussed. Considerations presented in this paper are limited to the most essential instrumental factors broadening the bremsstrahlung isochromat spectra which can be described in terms of the apparatus function. In order to estimate the width of the apparatus function some experimental results of bremsstrahlung isochromat spectroscopy measurements of chosen substances with various apparatus settings are shown. |
| DOI: 10.12693/APhysPolA.86.753 PACS numbers: 07.85.+n, 06.90.+v |