Compton polarimeter for 10-30 keV x rays.

Area of Science:

• Experimental physics
• X-ray optics
• Particle detection

Background:

• X-ray polarimetry is crucial for understanding high-energy astrophysical sources and laboratory plasmas.
• Existing polarimeters often face limitations in energy range, complexity, or efficiency.
• Developing versatile and accessible X-ray polarimetry techniques is an ongoing need.

Purpose of the Study:

• To present a novel, simple, and versatile polarimeter for X-ray applications.
• To demonstrate the feasibility of using Compton scattering in low-Z materials for X-ray polarimetry.
• To evaluate the performance of the developed polarimeter through simulations and experiments.

Main Methods:

• Designed and constructed a polarimeter utilizing Compton scattering in low-atomic-number (low-Z) materials like beryllium or boron carbide.
• Employed an array of 12 room-temperature silicon PIN diodes to detect scattered X-rays.
• Utilized Monte Carlo simulations to model and evaluate the polarimetry performance.

Main Results:

• The polarimeter operates effectively in the 10-30 keV energy range.
• The azimuthal distribution of Compton-scattered X-rays was successfully measured by the silicon PIN diode array.
• Simulations and experimental data confirm the polarimeter's capability for X-ray polarization determination.

Conclusions:

• The presented X-ray polarimeter is a simple, versatile, and effective instrument for measuring X-ray polarization.
• The use of Compton scattering in low-Z materials offers a viable method for X-ray polarimetry.
• This device has potential applications in various fields requiring X-ray polarization analysis.