Using refractive lenses to provide a variable spot size for Kirkpatrick-Baez mirrors.

Area of Science:

• Materials Science
• Physics
• X-ray Optics

Background:

• X-ray microprobe experiments often require adjustable beam sizes for different experimental stages.
• Current methods for beam size adjustment can be complex or introduce undesirable effects.

Purpose of the Study:

• To investigate the use of beryllium refractive lenses for controlling X-ray microprobe beam size.
• To evaluate the effectiveness and practicality of this method in Kirkpatrick-Baez microprobe systems.

Main Methods:

• Implementation of beryllium refractive lenses within a Kirkpatrick-Baez microprobe setup.
• Testing the ability of the lenses to enlarge the X-ray focus.
• Assessing the controllability and impact of lens insertion/removal on beam characteristics.

Main Results:

• Beryllium refractive lenses provide a straightforward and controllable method for enlarging the X-ray microprobe focus.
• The lenses enable variable spot sizes, suitable for both survey scans and detailed measurements.
• Insertion and removal of the lenses are quick processes that do not displace the beam's center on the sample.

Conclusions:

• Beryllium refractive lenses are a practical solution for achieving variable beam sizes in X-ray microprobe experiments.
• This technique enhances experimental flexibility and efficiency without compromising beam stability.