Radiant energy – Radiation controlling means – Shielded receptacles for radioactive sources
Patent
1993-12-07
1995-08-15
Berman, Jack I.
Radiant energy
Radiation controlling means
Shielded receptacles for radioactive sources
376272, 220254, G21F 500
Patent
active
054421861
ABSTRACT:
A source capsule containing a radioactive isotope is put inside of an outer protective jacket or capsule and the outer jacket is sealed. The outer protective jacket is so designed that it can be reopened without disturbing the radioactive isotope source capsule contained therein. Thus, when it becomes necessary to recondition the source capsule, the inner source capsule can be removed from the outer protective jacket and it can be re-encapsulated in another outer protective jacket. There is provided an encapsulated radioactive isotope source which comprises an outer protective jacket in the form of a can having a side wall, an integrally formed bottom wall and an open upper end. A source capsule containing a radioactive isotope is received within this outer protective jacket. A jacket cap is received within the outer protective jacket so as to close the open end of the jacket, with the source capsule thus located within the outer protective jacket. The jacket cap has its outer peripheral edge positioned in close fitting relation to the inner peripheral surface of the jacket side wall to form a narrow gap between the jacket cap and the jacket side wall. A weld extends along the narrow gap to join the jacket cap to the jacket and to seal the source capsule within the protective jacket.
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Muse Peter D.
Walker William F.
Berman Jack I.
Beyer James
Troxler Electronic Laboratories, Inc.
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