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Abstract

The concept of recycling active steel scrap from fusion reactor first wall and blanket structures has been examined. The route considered involves remelting and conversion to a semi-finished product for the manufacture of replacement components. These operations will need to be performed remotely and are considered technically feasible provided the contact dose rate does not exceed about 2.5x10**-2 Svh**-1. A cooling period of about 60y is required for low activation steels of currently anticipated purity levels to approach this dose rate. The loss of radioactivity to secondary wastes by the recycling routes proposed is estimated to be 5-20%, depending on the steel composition and impurity content.

Additional information

Authors: GOMER C R, BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK);CULHAM LABORATORY, ABINGDON (UK);DULIEU D, BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK);CULHAM LABORATORY, ABINGDON (UK);TUPHOLME K W, BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK);CULHAM LABORATORY, ABINGDON (UK);BUTTERWORTH G J BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK), BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK);CULHAM LABORATORY, ABINGDON (UK);CULHAM LABORATORY, ABINGDON (UK), BRITISH STEEL CORPORATION, SWINDEN LABORATORIES, MOORGATE, ROTHERHAM (UK);CULHAM LABORATORY, ABINGDON (UK)
Bibliographic Reference: CONFERENCE ON NUCLEAR ENERGY OF TODAY AND TOMORROW, GENEVE (SWITZERLAND), JUNE 1-6 ENC 86 TRANSACTIONS, VOL. 3, PP. 163-170
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