Shutter designed to block high-energy particle beams

Details Shutter designed to block high-energy particle beams Shutter designed to block high-energy particle beams

1975-04-04

1976-06-15

Borchelt, Archie R.

Radiant energy

Radiation controlling means

Shields

G21F 504, G21K 102

Patent

active

039639355

ABSTRACT:
A shutter designed for temporarily closing off an opening O.sub.A formed in the wall P of an irradiation room, for the passage of a particle beam, comprises a cylindrical metal block K which can rotate about its axis XX and occupy two stable position which are 180.degree. from one another. The block K a cylindrical cage closed at its two ends by two circular plates equipped respectively with eccentric holes for the passage of the particle beam, the eccentric holes having axes YY parallel to the axis XX and located at an interval L therefrom -The block K is provided with a longitudinal passage through which there can pass the particle beam and a blind hole or "pit" disposed symmetrically to the longitudinal passage and which can black the particle beam according as the positioning of the block K by respect with the eccentric holes.

REFERENCES:
patent: 3384751 (1968-05-01), Sperry
patent: 3721826 (1970-08-01), Thomas, Jr.

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