Glass-Display Fused silica glass coated with indium-tin oxide conductive layer and P31 phosphor ( ZnS:Ag:Cu-green, 525 nm wavelength) BDL600IR......................... 90 angle of acceptance from sample at a distance of 50 mm BDL800IR......................... 100 angle of acceptance from sample at a distance of 75 mm Retarding Field Analyzer Concentric assembly of hemispherical grids BDL600IR................ Working distance from sample 15 mm BDL800IR................ Working distance from sample 18 mm Grid Material.................. Gold coated tungsten wire mesh ( 100 mesh, 81% transparency) Energy Resolution.......... 0.2% - 0.5% at low modulation volt. Monitoring: 6” or 8” standard viewport Linear Motion:Up to 150 mm retraction from sample (100mm standard); linear ball bearing and acme thread with all spring electr. connections Integral Shutter : Open and close at any position of the linear motion Magnetic Shielding : Mu-metal cylinder with front cover for maximum atteniuation Assembly : Extreme-high-vacuum compatibility with stainless steel, high alumina and Au-plated copper alloy materials Mounting : 6” (CF100) or 8”( CF150) double sided conflat flange with sample distance 145 mm -500 mm Bakeability :Under vacuum, 250 C maximum
INTEGRAL MINIATURE ELECTRON GUN Beam Energy : LEED - 5 eV to 750 eV AES to 3000 eV Beam Current :LEED - 2 uA at 100 eV and 0.5 mm beam size AES - up to 100 uA at 3 keV Beam Size :from 1 mm to 250 um - adjusted by wehnelt potential, limited by exchangeable aperture down to 50 um Electron Source :Tungsten-2% Thoriated filament standard, single crystal LaB6 filament optional Energy Spread :0.45 eV (tunsten-rhenium filament) Overall Size : 10 mm lens diameter and 80 mm length