Diaphragm for electromagnet radiation beam and its use in a coll

Details Diaphragm for electromagnet radiation beam and its use in a coll Diaphragm for electromagnet radiation beam and its use in a coll

1987-07-08

1989-08-08

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Beam control

Collimator

378150, 378151, G21K 104

Patent

active

048560421

ABSTRACT:
The diaphragm comprises at least one chamber in which there flows a deformable material that attenuates the radiation beam, the chamber being shaped so that the attenuating material can be introduced from outside the chamber and so that it can surround the passage zone of the beam inside the chamber in such a way that the surface of the passage zone varies constantly with the volume of the material present in the chamber.

REFERENCES:
patent: 2481660 (1949-09-01), Harrison
patent: 2659017 (1951-02-01), Bartow
patent: 2871367 (1959-01-01), Gournay
patent: 3114043 (1963-12-01), Thomas et al.
patent: 3582907 (1971-06-01), Taylor et al.
patent: 3805081 (1974-04-01), Barthel et al.
patent: 4236360 (1980-12-01), Parrier et al.
patent: 4446570 (1984-05-01), Guth

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