Irradiation apparatus using radioactive sources

Details Irradiation apparatus using radioactive sources Irradiation apparatus using radioactive sources

1981-01-09

1982-12-07

Anderson, Bruce C.

X-ray or gamma ray systems or devices

Beam control

Collimator

G21F 302, G21K 104

Patent

active

043629474

ABSTRACT:
An irradiation apparatus for obtaining an irradiation beam having precise and easily adjustable dimensions. This apparatus comprises more particularly a secondary collimation device having an axis Y--Y, removably fixed to the mobile arm of the irradiation apparatus and comprising a conical pot, two pairs of frames which support collimating plates and are movable about shafts fixed to said conical pot, each of said frames being connected to said conical pot by means of a compass system formed from legs hinged together about shafts. With said frames are associated mobile antipenumbra plates whose position is checked by means of a feeler system.

REFERENCES:
patent: 2542196 (1951-02-01), Haupt
patent: 2667588 (1954-01-01), Oswald
patent: 2722611 (1955-11-01), Haput
patent: 3091696 (1963-05-01), Peyser
patent: 3539813 (1970-11-01), Resnick
patent: 4034288 (1977-07-01), Arauner
patent: 4128767 (1978-12-01), Stodberg et al.

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