An in-pile corrosion test loop is described which is used to study the effect of reactor radiation on the corrosion of materials of construction and the chemical stability of fuel solutions of interest to the Aqueous Homogeneous Reactor Program at OENL.nAqueous solutions of uranyl sulfate are circulated in the loop by means of a 5-gpm canned-rotor pump, and the pump loop is designed for operation at temperatures to 300CC and pressures to 2000 psia while exposed to reactor radiation in "beam-hole facilities of the LITR and ORE. Operation of the first loop in-pile was "begun in October 1954 and since that time 17 other in-pile loop experiments have been completed.nDesign criteria of the pump loop and its associated auxiliary equipment and instrumentation are described. In-pile operating procedures, safety features, and operating experience are presented. A cost summary of the design, fabrication, and installation of the loop and experimental facilities is also included.
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