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GENERAL CHARACTERISTICS ITEM DESCRIPTION |
SIDE ENTRY GONIOMETER 4.5 ANGSTROM LATTICE OR 7 ANGSTROM POINT,330X TO 250000X MAGNIFICATION IN 23 STEPS;COOL BEAM ELECTRON GUN,SELF-BIAS,PRE-CENTERED HAIRPIN FILAMENT,AUTOMATIC AIRLOCK AND GUN LIFT,HORIZONTAL AND TILTING CONTROL WITH BALANCED WO-STAGE BEAM DEFLECTOR; DOUBLE CONDENSER LENS,VARIABLE APERTURE ON MOLYBDENUM PLATE,PORM 6 DEG BEAM TILTING ANGLE;SPECIMEN CHAMBER MAX OF 6 SPECIMENS,BUILT-IN ANTICONTAMINATION DEVICE,CRT SPECIMEN POSITION INDICATOR,PORM 1 MM SPECIMEN MOVEMENT; OBJECTIVE LENS; DOUBLE-STAGE INTERMEDIATE AND PROJECTOR LENSES; VIEWING CHAMBER,236 BY 134 MM WINDOW BUILT-IN 10X BINOCUTARS AND BEAM STOPPER; CAMERA CHAMBER 25 EXPOSURES,AUTOMATIC OR MANUAL EXPOSURE CONTROL BUILT-IN DATA RECORDING DEVICE; CASCADE VACUUM SYSTEM,PNEUMATIC AND ELECTROMAGNETIC VALVES,2 OIL ROTARY PUMPS 75 LITER PER MIN.,2 OIL DIFFUSION PUMPS 400LITER PER SEC.,COOLING TRAP,2 WATER -COOLED BAFFLES,PIRANI TYPE GAUGES; ACCELERATING VOLTAGE 20,40,60,80,AND 100 KV; 90X TO 250000X MAGNIFI |