RADIATION FACILITY SUPPORT AND SOLID-STATE STUDIES.
CONTROLS FOR RADIATION INC CAMBRIDGE MASS
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AFCRL linear accelerator acceptance tests are described. A health physics manual was prepared and other safety procedures established for safe operation of the linac facility. Instruments for measuring linac beam current have been developed when necessary. A special ozone detector was developed for rapid measurement of the high levels of ozone developed near the linac. A low temperature thermal conductivity apparatus was designed and assembly has been essentially completed. It has been designed so that thermal conductivity can be measured on samples that have been bombarded at low temperatures. Determination of the concentration of oxygen in silicon to levels as low as 10 to the 13th power atomscu cm by means of photonuclear activation analysis is discussed. Initial tests of the technique were performed. The optimum operating electron energy of the AFCRL linac for photoactivation of oxygen is computed to be 19.4 Mev. Author