Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1989-11-07
1991-08-20
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
2503361, 250374, G01T 1161
Patent
active
050417304
ABSTRACT:
An ion chamber for use with analysis and alignment of radiation therapy equipment is disclosed which includes a one millimeter deep ion chamber formed by a cavity in the front of a core member which is closed at its upper end by a thin electrode stretched and held in place over the cavity. A guard ring around the collecting electrode is maintained by a coated layer formed on the surface of the core inside of the cavity. Suitable conductive layers applied to the core connect to the various conductors of a triaxial cable so that the front electrode, the ion collecting electrode, and the guard ring electrode, can all be relatively easily connected to the single triaxial cable connected to the ion chamber. Components of the ion chamber are all, with the exception of the front electrode and the ion collecting electrode, fabricated of a single uniform material having known and defined radiation transmission properties so that radiation field discontinuities and perturbations are not generated within the instrument.
REFERENCES:
patent: 3987305 (1976-10-01), Gilbert
patent: 4644167 (1987-02-01), Sorber
patent: 4695731 (1987-09-01), Larkin
Biryukov et al., "A Multifilament Proportional Chamber For An Alpha Spectrograph"; Plenum Publishing Corp., 1975, pp. 408-410.
Promotional Literature for Holt Parallel-Plate Chamber.
Promotional Literature for PTW/Markus Electron Beam Chamber.
Promotional Literature for Capintec Ionization Chambers, Model PS-033 Thin Window Parallel-Plate Chamber.
Glick Edward J.
Hannaher Constantine
Radiation Measurements, Inc.
LandOfFree
Parallel plate ion chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Parallel plate ion chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parallel plate ion chamber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1010234