Bimetallic thimble tube

Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor...

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Details

376254, 376291, 376463, 138154, G21C 1700

Patent

active

051204916

ABSTRACT:
A thimble tube for use in a guide the in a nuclear reactor. The thimble tube is an elongated hollow tube having one end closed. The portion of the tube that extends into the reactor is formed from a plurality of sections attached to each other to form the tube in an alternating fashion along the width and length of the tube. The sections are formed from materials having different coefficients of thermal expansion. This causes the thimble tube to warp into supporting contact with the interior of the guide tube at normal reactor operating temperature.

REFERENCES:
patent: 3735478 (1973-05-01), Porter et al.
patent: 4070241 (1978-01-01), Pennell et al.
patent: 4765944 (1988-08-01), Heuze et al.
patent: 4990304 (1991-02-01), Rylatt

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