Safety device for radiogenic unit

Details Safety device for radiogenic unit Safety device for radiogenic unit

1990-05-10

1991-04-16

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

With switching means

378200, H05G 154

Patent

active

050089161

ABSTRACT:
The disclosure concerns X-ray tubes that are placed in a sealed casing and filled with a cooling liquid. The disclosed safety device is constituted by a thermostat and/or a pressure-sentitive switch, series connected in the power supply circuit of the filament of the cathode. In the case of a cathod with two filaments, the thermostat and/or the pressure-sensitive switch is or are connected to the common conductor. Thus, should a temperature or pressure threshold be exceeded, the supply to the filament is cut off, thus cutting-off the X-radiation.

REFERENCES:
patent: 2290322 (1942-07-01), Goldfield
patent: 3898465 (1975-08-01), Jaklad et al.
patent: 4032788 (1977-06-01), Stege et al.
patent: 4386320 (1983-05-01), La France
patent: 4731807 (1988-03-01), Plessis et al.
patent: 4807270 (1989-02-01), Ploix et al.
patent: 4810893 (1989-03-01), Meertens
patent: 4862489 (1989-08-01), Appelt

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