Superconductive magnetic shield and method of making same

Details Superconductive magnetic shield and method of making same Superconductive magnetic shield and method of making same

1975-11-17

1980-09-09

Esposito, Michael F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428201, 428209, 428418, 428457, 156291, 29599, 427 62, 427 63, B32B 714, H01L 3902, H01L 3914

Patent

active

042218349

ABSTRACT:
A relatively thin superconductive magnetic shield, as of lead, is supported from a hollow support structure, as of aluminum or fiberglass by means of a multiplicity of spots of adhesive, as of epoxy, serving to bond the superconducting shield to the support structure. The shield and support structure is then positioned within a reentrant cryostat and cooled to liquid helium temperature to render the shield superconductive. Adjacent edges of the shield material are outwardly flanged and sealed together at the flanged portions, as by welding. The spot pattern of adhesive permits the shield to flex during thermal cycling to relieve strain and prevent fracture thereof while at the same time supporting the shield in a substantially nonmicrophonic manner.

REFERENCES:
patent: 1445070 (1923-02-01), Clune
patent: 3152035 (1964-10-01), Kirschner
patent: 3655502 (1972-04-01), Yoshikawa
Kazuo; Superconducting Magnetic Shield, Chem. Abstracts, vol. 71 p. 17121(d) (1969).
McKaney et al., Adhesive...Superconducting Coils, Chem Abstracts, vol. 72, p. 4097w (1970).
McKaney et al., IEEE Trans. Nuc. Sci., vol. 16 (No. 3) pp. 734-735 (1969).

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