الوصفApparatus for investigating convection currents within large steel ingots as they solidify. A small amount of radioactive gold-198 is introduced at various times after pouring and subsequent mixing is observed by external counting. (From paper by A. Kohn, Institut de Recherches de la Sidérurgie, France). IAEA Bulletin, Volume 5, No. 1, 1963/1148
Photo - Positive
