A color x-ray camera for 2-6 keV using a mass produced back illuminated complementary metal oxide semiconductor...

Area of Science:

• X-ray detector technology
• Spectroscopic imaging
• Solid-state physics

Background:

• Mass-produced charge-coupled device (CCD) and complementary metal-oxide-semiconductor (CMOS) sensors are utilized as X-ray detectors, offering high spatial and energy resolution.
• Ambient-temperature back-illuminated CMOS sensors represent a recent advancement in detector technology.

Purpose of the Study:

• To develop a spectroscopic X-ray camera with enhanced performance for 2-6 keV photons.
• To evaluate the camera as an alternative to traditional energy-dispersive solid-state detectors.
• To demonstrate the camera's utility in high-resolution X-ray spectroscopy applications.

Main Methods:

• Development of a spectroscopic X-ray camera utilizing a back-illuminated CMOS sensor.
• Characterization of the camera's performance, including spatial and energy resolution, saturation rates, and frame rates.
• Evaluation of the camera in a high-resolution wavelength-dispersive X-ray fluorescence spectrometer.

Main Results:

• The developed spectroscopic X-ray camera demonstrates impressive performance for 2-6 keV photons.
• Key characteristics include fine position and energy resolution for individual photon events, high saturation rates, and frame rates exceeding 100 Hz.
• The camera offers user-friendly maintenance and real-time processing software.

Conclusions:

• The new spectroscopic X-ray camera presents a viable and high-performance alternative to traditional X-ray detectors.
• Its advanced features make it suitable for diverse advanced X-ray spectroscopy studies in laboratory and large-scale facility settings.
• The camera's integration into a high-resolution X-ray emission spectrometer highlights its practical applicability.