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Some considerations concerning the accuracy of power level calculations in the context of the control of SS materials

Description: This report investigates a study of the accuracy of the power level calculations. Some characteristics of this calculation can be adduced but the accuracy in the sense of freedom from bias leads to an impasse. It presumes that there is another measurement for comparison purposes for which there are engineering reasons to believe, the inherent error is smaller. For the power level values as calculated by the Foxboro Power Level Calculator no such measurement or calculation exits. However, the ca… more
Date: March 14, 1960
Creator: Stewart, K. B.
Partner: UNT Libraries Government Documents Department
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CPD`s potential for processing the higher transuranics

Description: Hanford`s potential has been evaluated for producing higher transuranic isotopes, particularly curium-242 and curium-244. This document outlines the concepts visualized, and estimates the potential impact on CPD`s development, construction, and production programs. The irradiation program would proceed in 3 steps: production of fuel-grade plutonium, its burning to higher isotopes and alloying with Al for use in one reactor, and the separated americium irradiated to form curium-242. Disposition … more
Date: March 14, 1963
Creator: Tomlinson, R. E.
Partner: UNT Libraries Government Documents Department
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Production reactor process tube, dummy, and fuel element cladding film and radioactivity studies

Description: During the normal operation of reactors ionic, particulate and colloidal substances in the coolant are activated as they pass through the neutron flux. The parent substances for the activated materials come from several sources: transient corrosion products from the coolant system piping and fuel element cladding, coolant additives and coolant impurities. Previous studies have shown that a major portion of these substances do not simply pass through the neutron flux field but undergo complex so… more
Date: March 14, 1962
Creator: Perrigo, L. D.
Partner: UNT Libraries Government Documents Department
open access

Status report: Carbon-14 in the condensate from the silica gel dryers of the production reactors

Description: Volatile compounds containing C{sup 14} produced in the cooling gas systems of Hanford reactors can be lost from the cooling gas by two routes. These are (a) escape via the reactor stacks through leaks in the cooling gas system and (b), adsorption with water vapor on the silica gel of the dryers for the cooling gas with subsequent regeneration of the silica gel and condensation of the water for disposal. Information relative to the release rates by the stack gas route was reported in HW-75618. … more
Date: March 14, 1963
Creator: Barton, G. B.
Partner: UNT Libraries Government Documents Department
open access

Irradiation Processing Department Monthly Report: February 1963

Description: This document details activities of the Irradiation Processing Department during the month of August, 1958. A general summary is included at the start of the report, after which the report is divided into the following sections: Research and Engineering Operations; Production and Reactor Operations; Facilities Engineering Operation; Employee Relations Operation; and Financial Operation.
Date: March 14, 1963
Creator: Hanford Atomic Products Operation. Irradiation Processing Department.
Partner: UNT Libraries Government Documents Department
open access

LITHIUM HYDRIDE PROPERTIES

Description: A tabulation is presented of values for selected properties of lithium hydride. (M.C.G.)
Date: March 14, 1961
Creator: Welch, F.H.
Partner: UNT Libraries Government Documents Department
open access

Radiochemical Processing-Off-Site Transportation and Ultimate Storage Problems

Description: Safe and economic methods of handling radioactive materials off-site are required for the successful operation of nuclear chemical plants. These occasions arise in the shipment of spent fuel, radioactive, isotopes, and liquid wastes. An unsolved problem exists in the development of techniques and sites for the final disposal of waste products. (auth)
Date: March 14, 1962
Creator: Blomeke, J. O. & Shappert, L. B.
Partner: UNT Libraries Government Documents Department
open access

Aqueous Processing of Thorium Fuels

Description: The status of aqueous processing methods for thorium fuels is summarized, with principal emphasis on the stainless steel-clad ThO/sub 2/UO/sub 2/ type. Data were obtained principally from laboratory-scale experiments with fully irradiated fuel samples and engineering-scale tests with unirradiated fuel. Stainless steel cladding was easily dissolved with 4 to 6M H/sub 2/SO/sub 4/ (Sulfex process) or 5M HNO/sub 3/-2M HCl (Darex process) in LCNA (Nionel type) or titanium equipment, respectively, in… more
Date: March 14, 1962
Creator: Blanco, R. E.; Ferris, L. M. & Ferguson, D. E.
Partner: UNT Libraries Government Documents Department
open access

Moisture Monitor Testing and Calibration

Description: ABS>Electrolytic moisture monitors which continuously analyze the moisture content of gases are commercially available. After a period of operation, these instruments may give erroneous readings, frequently because of damage to the electrolytic cell. A gas with a known and reproducible moisture content within the operating range would be useful for making operational response tests on these monltors and for checking their calibration. A paired- hydrate system of a chemical compound exhibits a w… more
Date: March 14, 1963
Creator: Montgomery, C. D.; Googin, J. M. & Phillips, L. R.
Partner: UNT Libraries Government Documents Department
open access

THE ABSOLUTE ABUNDANCE OF THE CHROMIUM ISOTOPES IN SOME SECONDARY MINERALS

Description: Isotopic assays have been made on the Cr in samples from 14 different chrominiferous minerals from different geographic and meteoritic sources. The results of the assays indicate that it is not possible to state unequivocally that variations in isotopic composition have been observed. (auth)
Date: March 14, 1962
Creator: Svec, H. J.; Flesch, G. D. & Capellen, J.
Partner: UNT Libraries Government Documents Department
open access

A Reliability Improvement Program Planning Report for the SNAP 10A Space Nuclear Power Unit

Description: The estimated achieved reliability of SNAP 10A space nuclear power units will be relatively low at the timeof the first SNAPSHOT flight test in April 1963 and the existing R&D program does not provide a significant reliabiity growth thereafter. The total costs of an 8-satellite network using SNAP 10A units over a 5-year period has been approximated for the case where the total cost of a single satellite launched is 8 million dollars.
Date: March 14, 1961
Creator: Coombs, M. G.; Smith, C. K. & Wilson, L. A.
Partner: UNT Libraries Government Documents Department
open access

Valve Operating System Performance Test. Core 1, Seed 2. Test Results T- 641114

Description: A test was run on the Shippingport Pressurized Water Reactor on June 15, 1960, to determine whether or not the pressure snd water flask volume of the valve operating system are sufficient to meet requirements under both normal and emergency conditions. The system was found to be satisfactory. A two-hour leak test indicated leakage. (D.L.C.)
Date: March 14, 1961
Partner: UNT Libraries Government Documents Department
open access

Periodic Intercalibration of Temperature Sensing Elements. Core I, Seed 2. Test Results (T-641303)

Description: Tests were conducted to determine the direction and magnitude of drift in core thermocouples, primary loop and pressurizer resistance thermometers, and the resistance thermometers in the secondary side of the boilers. The temperature sensing elements of the reactor coolant loops did not show any significant short-term error. The tests of the core thermocouples were not conclusive. Test data are included. (J.R.D.)
Date: March 14, 1961
Partner: UNT Libraries Government Documents Department
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