Dosimeter for photometric applications

Details Dosimeter for photometric applications Dosimeter for photometric applications

G - Physics

01

J

340/155, 315/25,

G01J 1/44 (2006.01) G01J 5/30 (2006.01)

Patent

CA 1199671

ABSTRACT A temperature independent dosimeter is provided for measuring an amount of irradiation of a predetermined frequency. A photodiode (24) operating in its photovoltaic mode is irradiated with the irradiation to produce a signal that is amplitude-proportional to the amplitude of the irradiation. The signal is converted by a pair of operational amplifiers (89, 96) to a plurality of pulses that are proportional in frequency to the amplitude of the signal. The plurality of pulses is counted by a counter (20) and the irradiation is terminated when the count reaches a predetermined amount.

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