Method of manufacture of laminate radiation collimator

Details Method of manufacture of laminate radiation collimator Method of manufacture of laminate radiation collimator

1981-04-06

1984-08-14

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156256, 156290, 204 20, 204 321, 350 16, 35016217, 2505031, 2505051, 430 4, 427307, B32B 3116

Patent

active

044655401

ABSTRACT:
A collimator (21, 38, 38A) transmits intercepted X rays or the like along an array of predetermined spaced apart paths (22, 22A), which may be parallel or convergent, while absorbing intercepted radiation which is traveling in other directions. A laminated construction of the collimator provides for an extremely large number of very minute and closely spaced radiation passages (42, 42A) which may have a noncircular cross section to increase transmissivity. The laminated construction also reduces the amount of heavy and sometimes costly radiation absorbent material required in the collimator, enables precise control of the transmitted radiation paths and facilitates the establishing of a desired focal point for the paths. Photoetching techniques, including optical image reduction, are used in the manufacture of the collimator laminations. In some variations of the method, the radiation absorbent material is plated onto the laminations.

REFERENCES:
patent: 2133385 (1938-10-01), Freeman
patent: 2624013 (1952-12-01), Marks
patent: 2638554 (1953-05-01), Bartow et al.
patent: 2730566 (1956-01-01), Bartow et al.
patent: 3227880 (1966-01-01), Wilderoe
patent: 3373286 (1968-03-01), Han
patent: 3793520 (1974-02-01), Grenier
patent: 3867637 (1975-02-01), Braun et al.
patent: 3869615 (1975-03-01), Hoover et al.
patent: 3949229 (1976-04-01), Albert
patent: 4144457 (1979-03-01), Albert
"Photofabrication Methods", Eastman Kodak Co., 1975, pp. 1-30.

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