Data acquisition system

Details Data acquisition system Data acquisition system

1994-03-29

1997-04-08

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

327337, H01L 2978

Patent

active

056190409

ABSTRACT:
A data acquisition circuit for a particle detection system that allows for time tagging of particles detected by the system. The particle detection system screens out background noise and discriminate between hits from scattered and unscattered particles. The detection system can also be adapted to detect a wide variety of particle types. The detection system utilizes a particle detection pixel array, each pixel containing a back-biased PIN diode, and a data acquisition pixel array. Each pixel in the particle detection pixel array is in electrical contact with a pixel in the data acquisition pixel array. In response to a particle hit, the affected PIN diodes generate a current, which is detected by the corresponding data acquisition pixels. This current is integrated to produce a voltage across a capacitor, the voltage being related to the amount of energy deposited in the pixel by the particle. The current is also used to trigger a read of the pixel hit by the particle.

REFERENCES:
patent: 4593381 (1986-06-01), Shapiro et al.
patent: 5061865 (1991-10-01), Durst
patent: 5355013 (1994-10-01), Parker
Parker, S. "A Proposed VLSI Pixel Device for Particle Detection" Nucl. Instr. & Meth. in Phys. Res., A275 (1989) p. 494.

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