X-ray sensor arrays

Details X-ray sensor arrays X-ray sensor arrays

1990-12-21

1992-08-18

Jackson, Jr., Jerome

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

357 30, 357 32, 357 74, 25037001, 25037009, 25037014, H01L 2714, H01L 3110

Patent

active

051403951

ABSTRACT:
A plurality of phototransistors are connected in a matrix of rows and columns. Light falling on the phototransistors discharges the interelectrode capacitance between the emitter and collector of each phototransistor. Each phototransistor is permitted to discharge for a given period of time. A current source then charges the interelectrode capacitance back to its original level. The amount of time taken to recharge the interelectrode capacitance is a function of the intensity of the light falling on that phototransistor.

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