%A"Shinohara, K" %D1969 %I; %2 %J[] %K07 ISOTOPES AND RADIATION SOURCES, IRRADIATION DEVICES, DESIGN, ARGON, DEFECTS, EFFICIENCY, ELECTRON BEAMS, FORCED CONVECTION, GAS COOLING, INERT ATMOSPHERE, IRRADIATION PROCEDURES, NITROGEN, WINDOWS, BEAMS, CONVECTION, COOLING, CRYOGENIC FLUIDS, ELEMENTS, ENERGY TRANSFER, FLUIDS, HEAT TRANSFER, LEPTON BEAMS, NONMETALS, OPENINGS, PARTICLE BEAMS, RARE GASES, 070201* - Radiation Sources- Design, Fabrication & Operation %PMedium: X; Size: Pages: 3 %TElectron beam irradiating device %XThe efficiency of an electron beam irradiating device is heightened by improving the irradiation atmosphere and the method of cooling the irradiation window. An irradiation chamber one side of which incorporates the irradiation windows provided at the lower end of the scanner is surrounded by a suitable cooling system such as a coolant piping network so as to cool the interior of the chamber which is provided with circulating means at each corner to circulate and thus cool an inert gas charged therewithin. The inert gas, chosen from a group of such gases which will not deleteriously react with the irradiating equipment, forms a flowing stream across the irradiation window to effect its cooling and does not contaminate the vacuum exhaust system or oxidize the filament when penetrating the equipment through any holes which the foil at the irradiation window may incur during the irradiating procedure. %0Patent %NJP 1974-46040; B; %1 %CJapan %Rhttps://doi.org/ INIS %GJapanese