3DX: a micromachined silicon crystallographic x-ray detector (original) (raw)

2003, X-Ray and Gamma-Ray Detectors and Applications IV

Converting Films for X-Ray Detectors, Applied to Amorphous Silicon Arrays

MRS Proceedings, 1997

This paper presents results from our on-going efforts to characterize semiconductor thin films for direct x-ray conversion. We deposit these thin films onto an amorphous silicon (a-Si:H) readout array with the overall goal of developing a large area x-ray detector for protein crystallography, and for other x-ray imaging fields.

An 8x8 pixel array IC for X-ray spectroscopy

2001

An integrated circuit providing 64 channels of lownoise signal processing electronics in an 8x8 pixel arrangement has been developed as part of an integrated silicon detector array for high count-rate x-ray spectroscopy applications. Each pixel features low-noise charge integration, programmable peaking time and gain, and an output driver. The 8x8 pixel IC builds upon our previous development of the XPS chip, a 1dimensional preamplifier-shaper IC for linear silicon detector arrays. The new pixel design features significant improvements to the shaper and output driver stages, including digital peaking time and gain selection, and a low-power charge driver/receiver design. When operated with a cooled, low-capacitance silicon detector, an energy resolution of ~210 eV FWHM was obtained for 5.89 keV x rays.

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