Radiant energy – Invisible radiant energy responsive electric signalling – With means to inspect passive solid objects
Patent
1976-06-11
1977-10-11
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
With means to inspect passive solid objects
250367, 250413, G01J 142
Patent
active
040537749
ABSTRACT:
An exposure controller for x-ray equipment is provided, which comprises a portable and accurate sensor which can be placed adjacent to and directly beneath the area of interest of an x-ray plate, and which measures the amount of exposure received by that area, and turns off the x-ray equipment when the exposure for the particular area of interest on the x-ray plate reaches the value which provides an optimal x-ray plate.
REFERENCES:
patent: 2488315 (1949-11-01), Morgan et al.
patent: 2829273 (1958-04-01), Fransen
patent: 2837657 (1958-06-01), Craig et al.
patent: 3792267 (1974-02-01), Westerkowsky
California Institute of Technology
Willis Davis L.
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