Matches 51 - 100 out of 120 < 1 2 3 >

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3728160 RADIOISOTOPE MEANS  
A radioisotope support structure has a fuel capsule defining a first and a second end preferably with a foil insulation surrounding the capsule and first and second insulating end sections...
3708268 ISOTOPIC THERMAL POWER SOURCE  
An isotopic thermal power source is formed having good heat conductivity and desired ductility by utilizing a mixture of molecules of a metal refractory or ceramic compound and metal with the...
3666846 PROCESS OF FORMING AN ISOTOPIC HEAT SOURCE  
A process of encapsulating an alpha-emitting isotope to form an isotopic heat source. Microspheres are prepared, each containing its own helium gas plenum, an alpha-emitting isotope, and...
3664083 METHOD OF AUTOMATICALLY PACKAGING RADIO ACTIVE SOURCES AND APPARATUS THEREFOR  
An automatic method of packing radioactive sources, the method mainly comprising moving a circular tray automatically and periodically in a shielded enclosure past a number of equidistant working...
3659107 RADIOISOTOPIC FUEL CAPSULE  
A radioisotopic fuel capsule or cell and making thereof for use in such as a thermoelectric or thermionic generators which utilizes substoichiometric plutonium dioxide enclosed within a refractory...
3638051 NUCLEAR THERMIONIC GENERATOR WITH COMPOSITE PARTICLE CATHODE  
This invention relates to the art of generating power and has particular relationship to thermionic generators of electrical power.
3635831 PRODUCTION OF HIGH-PURITY CESIUM-137  
A method has been provided for the production of high-purity cesium-137 free of cesium-134. Concentrated 137 Cs free of 134 Cs is obtained by removing nonsoluble gases, including xenon isotopes,...
3627691 A METHOD OF PREPARING A CALIFORNIUM-252 NEUTRON  
A method of encapsulating a radioisotope wherein an open ended tube is used first to support a porous member for filtering a radioisotope precipitate from a solution and next for containing the...
3603788 GAMMA RADIATION SOURCE AND METHOD FOR THE TREATMENT OF SEWAGE  
A method is disclosed for the treatment of contaminated water (sewage) by the gamma rays from fission byproduct waste so as to kill bacteria and/or degrade chemical waste in the contaminated...
3600585 PLUTONIUM HEAT SOURCE  
A radioisotopic heat source for a thermoelectric generator having a plutonium-238 alloy enclosed within a tantalum container and an arc melting method and apparatus to produce said alloy.
3527948 COBALT-RHENIUM ENERGY SOURCE  
3515875 ALPHA-PARTICLE-EMITTING RADIOISOTOPE GENERATOR  
3567646 STABLE CESIUM COMPOUNDS  
3660300 METHOD OF PREPARING OXIDIZED RADON SOLUTIONS  
3778295 CHEMICAL PLATING METHOD OF PREPARING RADIATION SOURCE MATERIAL  
3632520 RADIOISOTOPE FUEL  
3738873 SELF GENERATING THERMOELECTRIC CONVERTER  
3706689 PROCESS FOR THE PREPARATION OF A SR**90-Y**90 BETA SOURCE IN A RADIATION HAZARD FREE MANNER  
3640888 CALIFORNIUM-252 NEUTRON SOURCE AND METHOD OF MAKING SAME  
3677958 RADIOACTIVE HEAT SOURCE  
3486935 METHOD FOR THE PREPARATION OF FILMS CONTAINING RADIOACTIVE MATERIALS AND MOUNTED ON CARRIERS  
3463739 METHOD FOR RECOVERING POLONIUM-210 FROM BISMUTH  
3459634 RADIOISOTOPE PROCESSING  
3457181 METHODS OF MAKING SOURCES OF RADIOACTIVE ENERGY  
3431328 METHOD OF MAKING A STRONTIUM-90 RADIATION SOURCE  
3421001 RADIOISOTOPIC HEAT SOURCE AND METHOD OF PRODUCTION  
3413232 Heat-reaction product comprising barium or molybdenum sulfides, metal phosphates andmetal dioxides  
3380853 Intensified radioactive sources and method of preparation  
3378498 Process for diffusing metal into a refractory or ceramic oxide using a nitrate promoter  
3376422 Radioactive source comprising a sheet article containing a layer of small discrete radioactive beads  
3364148 High silica matrix radioactive source and method of preparation  
3360477 Neutron source  
3351049 Therapeutic metal seed containing within a radioactive isotope disposed on a carrier and method of manufacture  
3347711 Radio-isotope thermoelectric apparatus and fuel form  
3340202 Sintered pollucite radioactive source and method of production  
3331784 Radioactive ceramic source of strontium fluorapatite and method of manufacture  
3329817 Radiation source  
3326178 Vapor deposition means to produce a radioactive source  
3321646 Thermoelectric cell and reactor  
3304445 Semiconductor battery  
3301789 Zirconium removal from strontium-90  
3281372 Matrix emitter for thermionic conversion systems  
3271320 Polonium recovery  
3260847 Neutron source  
3247022 Thermoelectric materials  
3232717 Uranium monocarbide thermionic emitters  
3208947 Thermoelectric compositions and methods of preparing same  
3183356 Neutron source  
3167655 Target for a neutron generator consisting of a coating of one of the lanthanon elements on a base metal  
3161601 Radioactive cesium containment  
Matches 51 - 100 out of 120 < 1 2 3 >