Resonant frequency modulation detector

Details Resonant frequency modulation detector Resonant frequency modulation detector

1990-07-25

1991-12-03

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Superconducting type

2503361, 25037001, 333995, 505848, 505849, 505866, H01L 3900

Patent

active

050702416

ABSTRACT:
A multilayered radiation detector device (50) including a resonant cavity structure wherein one cavity wall electrode includes a portion of a photovoltaic radiation detector (52). Specifically, a RFM detector has a superconducting transmission line electrode (54) electrically coupled to a high mobility semiconductor layer (58) of the photovoltaic detector. The superconductor transmission line electrode inductance forms, in combinations with a photodetector depletion region capacitance, a series resonant or a parallel resonant circuit. A radiation-induced change in the capacitance results in a change in the circuit resonant frequency and a corresponding variation in the amplitude of an on-resonance RF signal applied to the circuit. In another embodiment the resonant cavity structure includes a gap having a width that is modulated by an amount of absorbed radiation, the radiation-induced change in the distributed cavity capacitance resulting in a change in the cavity resonant frequency.

REFERENCES:
Alworth et al., "Nuclear Radiation Detection Using a Superconducting Resonant Cavity", J. Appl. Phys. 42 (1) Jan. 1971, pp. 166-169.

Affiliated with

Also associated with

Rating

Resonant frequency modulation detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resonant frequency modulation detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant frequency modulation detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1698168