儀器規格 | ELECTRON OPTICS: ● Condenser Lens: Permanent magnets 1. Smallest illuminated area: 100 nm 2. Condenser apertures: f 50, 30 µm ● Objective Lens: magnetostatic 1. Focal length 1.26 mm 2. C S 0.64 mm 3. C C 0.89 mm 4. α theoretical (aperture angle) 10-2 rad 5. Objective (contrast) aperture f 50, 30 µm ● Projection Lenses (TEM): Electrostatic 1. Basic TEM: Single Lens 2. TEM BOOST Double Lens ● TEM IMAGE CAPTURE Basic TEM Camera: Retiga 4000R CCD Sensor Size: 2,048 x 2,048 pixels Digitization: 12-bit Pixel Size: 7.4 x 7.4 µm Cooling: Peltier cooled TEM BOOST Camera: Zyla 5.5 Scientific CMOS Sensor Size: 2,560 x 2,160 pixels Digitization: 12 or 16 bit Pixel Size: 6.5 x 6.5 µm Cooling: TE Cooled Read Noise: 1.2 e – |