Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1989-05-08
1990-12-04
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
250374, G01T 1185
Patent
active
049755854
ABSTRACT:
A radiation dose monitor includes a power supply electrode disposed on one side of an ionization chamber containing a gas which is ionized by a radiation beam, and a first pair of coplanar collector electrodes disposed on the other side of the ionization chamber from the power supply electrode, being separated from each other by a first band-shaped gap. A second pair of coplanar collector electrodes are disposed adjacent to the first pair of collector electrodes on the same side of the power supply electrode as the first pair of coplanar collector electrodes, and separated from each other by a second band-shaped gap which extends in a direction at an angle with respect to the first band-shaped gap. The second pair of coplanar collector electrodes receive an ionization current from the ionization chamber and through the first band-shaped gap.
REFERENCES:
patent: 3808441 (1974-04-01), Boux
patent: 3997788 (1976-12-01), Boux
patent: 4034222 (1977-07-01), Azem et al.
patent: 4264816 (1981-04-01), Walenta
Glick Edward J.
Hannaher Constantine
Mitsubishi Denki & Kabushiki Kaisha
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