RESEARCH INTO THE MELTING - REFINING OF CONTAMINATED STEEL SCRAPS ARISING IN THE DISMANTLING OF NUCLEAR INSTALLATIONS
Project ID: FI1D0015Funded under: FP1-DECOM 2C
The main part of this report is concerned with the steel making behaviour of various radioisotopes encountered in steel from decommissioning of nuclear installations (e.g. cobalt 60, caesium 134 and europium 154). Under a wide range of conditions cobalt is largely absorbed by the steel, europium is absorbed by the slag, whereas caesium may be largely volatized, or largely absorbed by the slag. Radiation exposures which might occur during a large-scale recycling operation, during routine operations and accidents would not be significant according to published criteria in the UK. The second part of the report concerns the detection of radioactive materials which may be accidentally delivered to steelworks in scrap steel and used in steel making. Detectors have been developed which would indicate the presence of radioactivity in scrap. A survey of the steelworks revealed areas where detection might be performed. Experiments have shown that a gamma ray detector of large volume could provide useful sensitivity of detection.
Bibliographic Reference: EUR 12605 EN (1990) 86 PP., FS, ECU 7.50 AVAILABLE FROM THE OFFICE FOR OFFICIAL PUBLICATIONS OF THE EUROPEAN COMMUNITIES, L-2985 LUXEMBOURG
Availability: Can be ordered online
Record Number: 1989128038900 / Last updated on: 1990-11-09
Available languages: en