Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1982-03-15
1984-09-04
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
2503541, G01T 129, H01L 2714
Patent
active
044699450
ABSTRACT:
In a radiation-sensitive semiconductor element which is divided into a number of sub-elements, the surface potential in the sub-elements varies with incident radiation as a result of charge carriers generated by the radiation. As soon as an adjustable threshold value of this potential is reached in one or more of the sub-elements, a current starts to flow which is signalled by means of a detector and a detection unit. Because the speed of reaching the threshold value depends on the intensity of the radiation, the time measured between the adjustment of the threshold value and the signalling of the current is a measure of the radiation intensity. By means of such a semiconductor element, the associated detection unit and extra electronics, if any, the energy or the cross-section of a beam can be determined and be readjusted, if necessary. Such a semiconductor device can also be used very readily for focusing, for example in VLP apparatus.
REFERENCES:
patent: 4228354 (1980-10-01), Lehto et al.
patent: 4360732 (1982-11-01), Chapman et al.
A. J. Steckl, R. D. Nelson, B. T. French, R. A. Gudmundsen, D. Schechter, "Application of Charge-Coupled Devices to Infrared Detection and Imaging", Proceedings of the IEEE, vol. 63, No. 1, (Jan. 1975), pp. 67-74, esp. 70-71.
Hoeberechts Arthur M. E.
van Rosmalen Gerard E.
Biren Steven R.
Hannaher Constantine
Howell Janice A.
Mayer Robert T.
U.S. Philips Corporation
LandOfFree
Device for detecting radiation and semiconductor device for use does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for detecting radiation and semiconductor device for use , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for detecting radiation and semiconductor device for use will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1893725