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THE SNAP II POWER CONVERSION SYSTEM TOPICAL REPORT NO. 7. MERCURY MATERIALS EVALUATION AND SELECTION

Description: The SNAP II system consists of a reactor heat source, a mercury Rankine engine, and an alternator. The problems involved in selecting materials for the SNAP II mercury system were studied. A discussion is given of the corrosion mechanisms involved in a system in which mercury is the working fluid. The problem resolves itself into selecting materials with the best combination of engineering properties for the application and highest resistance to mercury corrosion at the anticipated temperature. (auth)
Date: October 26, 1960
Creator: Owens, J.J.; Nejedlik, J.F. & Vogt, J.W.
Partner: UNT Libraries Government Documents Department

HIGH-TEMPERATURE VAPOR-FILLED THERMIONIC CONVERTER. Quarterly Technical Progress Report for the Period Ending July 31, 1963

Description: Efforts were directed to the evaluation of materials, fabrication, and testing problems associated with the operation of high-temperature vapor-filled thermionic converters employing uranium-zirconium carbide emitters of cylindrical geometry. To date five of these converters have operated 5300 hr. Cell H, which had two cesium vials, was placed in operation, while final assembly of Cell K was completed. Cell H output was 56 watts at an emitter temperature of 2380 deg K. The cesium temperature optimum for maximum power was 637 deg K. A collector temperature optimum was not obtained due to cooling limitations. (auth)
Date: August 26, 1963
Creator: Skoff, R.
Partner: UNT Libraries Government Documents Department

LCRE and SNAP 50-DR-1 programs. Engineering and progress report, April 1, 1963--June 30, 1963

Description: BS>Declassified 6 Sep 1973. Information is presented concerning the LCRE kinetics, auxiliary systems, fuel, primary cooling system components, instrumentation, secondary cooling system, materials development, and fabrication; and SNAP-50/SPUR kinetics, fuel, primary system pump, steam generator, and materials development. (DCC)
Date: August 26, 1963
Partner: UNT Libraries Government Documents Department

A TECHNIQUE FOR PREPARING NEPTUNIUM TARGETS OF UNIFORM CROSS SECTION

Description: As a result of a request for targets of uniform cross section for determination of the fission cross section of neptunium, an evaporation technique was developed for preparing films of the desired uniformity. Despite the fact that neptunium is an alpha emitter, it was possibIe to contain the activity and to subsequently recover the neptunium. (auth)
Date: March 26, 1959
Creator: Massey, B.J.
Partner: UNT Libraries Government Documents Department