二手 HITACHI S-4700 #9058859 待售

Field emission scanning electron microscope (FE SEM) Type I Resolution: Accelerating voltage: 15 kV Working distance: 12 mm 1.5 nm Accelerating voltage: 1 kV Working distance: 2.5 mm 2.5 nm Magnification: High magnification mode: 100x to 500,000x Low magnification mode: 20x to 2,000x Electron optics: Electron gun: Cold cathode field emission Extracting voltage (Vext): 0 to 6.5kV Accelerating voltage (Vacc): 0.5 to 30kV (in 100V steps) Lens: 3-stage electromagnetic lens, reduction type Objective lens aperture: Moveable aperture (4) Openings selectable / Align-able outside column Self-cleaning thin aperture Astigmatism correction coil (Stigmator): Electromagnetic type Scanning coil: 2-stage electromagnetic-deflection type Specimen stage: X Traverse o to 25 mm (Continuous) Y Traverse o to 25 mm (Continuous) Z Traverse 2.5 to 27.5 mm (Continuous) Tilt -50 to +450 Rotation: 3600 (Continuous) Specimen size (Airlock type specimen exchange) Maximum: 100 mm (Diameter) Display unit: Display type: Flicker- free image on PC monitor (Full scanning speeds) Viewing monitor: Type 17 Color: 1024 x 768 pixels Photo CRT (Option): Ultra-high resolution type (Effective field of view 120 x 90 mm) Scanning modes: Normal Reduced area Photo Split/Dual magnification Line Position setting Spot AAF (Analysis Area Finder) SAA (Selected Area Analysis) Scanning speeds: Fast Slow: 0.5 to 40 see for frame viewing For photo mode: 20/17, 40/33, 80/67, 160/167, 320/333 Fast: NTSC or PAL signal Value of (50 HZ)/(60 Hz) Signal processing modes: Automatic brightness control Gamma control Automatic focus Automatic stigmator Automatic data display: Film number Accelerating voltage Magnification Micron bar Micron value Date / Time and working distance Data entry: Alphanumeric characters Numbers and marks can be written on image from keyboard Electrical image shift: +/- 15um (WD = 12mm) Evacuation system: System type: Fully automatic pneumatic-valve Ultimate vacuum levels: Specimen chamber 7 x 10'4 Pa Electron gun chamber: IP-1 2 x 10'7 Pa IP-2 2 x 10'6 Pa IP-3 7 x 10'5 Pa Vacuum pumps: Electron optical system: (3) Ion pumps Specimen chamber: Oil diffusion pump Turbo molecular pump (option) (2) Oil rotary pumps Oil-less type compressor Protection devices: Warning devices power failure Cooling-water interruption Inadequate vacuum Others: Acoustic noise Less than 65 dB Dielectric voltage-withstand: 1500VAC/1min No EDX 1998 vintage.