X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1981-06-26
1985-05-07
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
2504971, G03B 4116
Patent
active
045162565
ABSTRACT:
A movable projector unit for welding control purposes with pipe-lines and the like, comprising a motor driven carriage, a carriage mounted projector for gamma radiation provided with a protective housing having an axially extending channel therein for the movement of a holder for a radio-active source, and a micro-pneumatic device to move said source holder from the shielded rest position in the housing to an exposure position and back, and a remotely controllable, electronic unit to control the motor of the carriage and the micro-pneumatic device of the projector.
REFERENCES:
patent: 3085157 (1963-04-01), Ginsburgh
patent: 3272987 (1966-09-01), Kohn
patent: 4283628 (1981-08-01), Kulekov
Church Craig E.
Rontgen Technische Dienst B.V.
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