Charge or particle sensing

Details Charge or particle sensing Charge or particle sensing

2007-02-27

2007-02-27

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

10500794

ABSTRACT:
A sensing arrangement for sensing charged particles and/or quanta of electromagnetic radiation has a sensor device (12) and amplifier circuitry (14). The sensor device (12) provides a sensor signal to an imput mode (vin) of the amplifier (14) to cause the level at the amplifier output mode (vout) to change. A negative feetback device (T1) responds to the change in level of the output node (Vour) to vary the feedback effect to increase the loop again of said amplifier circuitry (14). A current mirror (T2,T3) resets the input node (vin) to its initial level. Single particle and integrating sensor arrangements are disclosed.

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