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Plutonium Release Incident of November 20, 1959

Description: A nonnuclear explosion involving an evaporator occurred in a shielded cell in the Radiochemical Processing Pilot Plant at Oak Ridge National Laboratory on Nov. 20, 1959. Plutonium was released from the processing cell, probably as an aerosol of fine particles of plutonium oxide. It is probable that this evaporator system had accumulated -1100 g of nitric acid-insoluble plutonium in the steam stripper packing; the explosion released an estimated 150 g inside Cell 6, with about 135 g in the evapo… more
Date: February 16, 1961
Creator: King, L. J. & McCarley, W. T.
Partner: UNT Libraries Government Documents Department
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Front shield weight and C. G.

Description: No Description Available.
Date: February 16, 1961
Creator: Phelps, E.
Partner: UNT Libraries Government Documents Department
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Specific activity of the NPR primary coolant loop

Description: In coolant system such as NPR's, the coolant activity level increase with each succeeding pass through the reactor flux until a saturation limit is reached. Therefore, the activity level of the NPR coolant system will be much higher than that of the old reactor once-through systems. This report is the determination of the specific activities (disintegrations/cc{center dot}sec) of the various coolant impurities which determine the total activity of the coolant system. 10 refs., 13 figs., 2 tabs.
Date: February 16, 1961
Creator: Bitz, D.A.
Partner: UNT Libraries Government Documents Department
open access

Final results of production test IP-348-I, K area low-flow calibration test

Description: K area emergency water backup studies have been hampered by poor data on flow through the reactor under various emergency conditions. Various tests have been run where emergency conditions have been simulated and flow measurements attempted. In all previous tests, the accuracy of the flow measurements have been questionable. Flow from the high-pressure crosstie can be measured by an orifice in the crosstie, but there has not been any method of measuring the service water contribution to total r… more
Date: February 16, 1961
Creator: Fuller, N. E.
Partner: UNT Libraries Government Documents Department
open access

Irradiated uranium fire hazard

Description: Earlier this year we briefly discussed the potential hazard of incurring an inadvertent uranium fuel element fire during discharge. This letter will provide data which will be of assistance to you in assessing the potential hazard, and in establishing charge-discharge procedures to minimize the probability of an irradiated fuel element lodged in the discharge area reaching aluminum jacket melting temperature without detection.
Date: February 16, 1961
Creator: Reid, R. W.
Partner: UNT Libraries Government Documents Department
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