Question

In X-ray fluorescence spectrometer, the relationship between the excitation intensity and the intensity of fluorescence does not depend on which of the following?

(a) Spectrum of the incident radiation

(b) Angle of radiance

(c) Molecular weight

(d) Incident angle

The question was posed to me in examination.

My doubt stems from X-Ray Fluorescence Spectrometry topic in section X-Ray Spectrometers of Analytical Instrumentation

Answer 1

Right choice is (d) Incident angle

Explanation: In X-ray fluorescence spectrometer, the relationship between the excitation intensity and the intensity of fluorescence does not depend on the incident angle. It depends on the absorption of path length.