X-ray or gamma ray systems or devices – Source
Patent
1987-10-05
1989-05-02
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Source
378 65, 2504931, 252644, 252645, G21G 400
Patent
active
048274933
ABSTRACT:
A radiography source, preferably a cobalt-60 source constructed of a plurality of radioactive cobalt-60 pellets contained in an open capsule preferably constructed of titanium. The pellets are disposed in the capsule and compacted therein to reduce the source focal size. A plug is disposed in the open capsule and welded therewith. The cobalt and titanium materials are sufficiently different in atomic number to permit good X-ray analysis resolution.
REFERENCES:
patent: 3351049 (1967-11-01), Lawrence
patent: 3376422 (1968-04-01), Haes
patent: 3664083 (1972-05-01), Fradin et al.
patent: 3866050 (1975-02-01), Whitfield
Kelly Robert L.
Parsons George W.
Zlotnicki Joseph M.
Amersham Corporation
Fields Carolyn E.
Hynds Joseph A.
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