Accession Number : AD0624684

Title :   A RADIOISOTOPIC POWER SUPPLY FOR THE SUNBLAZER SPACE PROBE.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Perkins,David R.

Report Date : AUG 1965

Pagination or Media Count : 74

Abstract : A preliminary investigation of the application of a radioisotopic power source in conjunction with the Sunblazer space probe of the M.I.T. Center for Space Research resulted in the design of a 12 watt-electrical power source which weighs 5.16 pounds. The fuel consists of 526 grams of Pu02 dispersed in graphite. The fuel is contained in a capsule made of Haynes-25 Alloy which has been designed to contain the isotope under all possible launch abort conditions. The heat from the isotope is converted to electrical power by passing it through 40 Silicon-Germanium thermoelectric couples. The output of 12 watts is produced at 2.66 volts and an overall efficiency of 5.80%. The radiation of waste heat is accomplished by means of an aluminum radiator which is always directed toward cold space. The probe is oriented by means of solar radiation pressure.

Descriptors :   (*RADIOISOTOPE BATTERIES, POWER SUPPLIES), (*SPACE PROBES, RADIOISOTOPE BATTERIES), (*SOLAR SATELLITES, SPACE PROBES), REACTOR FUELS, SOLAR SAILS, THERMOELECTRICITY, THERMAL INSULATION, PLUTONIUM, ELECTRON DENSITY, MEASUREMENT, SOLAR CORONA

Subject Categories : Electrochemical Energy Storage
      Snap(systems For Nuclear Auxiliary Power) Tech
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE