LVEM25

LVEM25 SPECIFICATIONS

KEY APPLICATION AREAS
Pathology
Biology
Nanoparticle characterization
Polymer Sciences
Operation
Specimen size standard ф 3.05mm grids
Time for sample exchange approx 3 min
IMAGING MODES
TEM
Nominal accelerating voltage 25 kV
Resolving power 1.0 nm
Total magnification* 1,127–430,743×
Field of view 100–0.25 µm
The smallest illuminated area 100 nm
Focal length 1.34 mm
Cs (spherical aberration coefficient) 1.03 mm
Cc (chromatic aberration coefficient) 1.05 mm
αtheor (theoretical aperture angle) 1.2×10-2 rad
* nominal (image 3¼×4")
ELECTRON DIFFRACTION
Minimum probe size 500 nm
Camera length (binning 2×2) 2,000–7,000 pxl
Camera constant (binning 2×2) 15.51–54.28 pxl×nm
STEM 15
Nominal accelerating voltage 15 kV
Resolving power 1.3 nm
Maximum magnification 375,000×
Maximum field of view 80×80 μm
Focal length 0.95 mm
Cs (spherical aberration coefficient) 0.80 mm
Cc (chromatic aberration coefficient) 0.85 mm
αtheor (theoretical aperture angle) 1.4×10-2 rad
STEM 10
Nominal accelerating voltage 10 kV
Resolving power 1.0 nm
Maximum magnification 470,000×
Maximum field of view 105×105 μm
Focal length 0.75 mm
Cs (spherical aberration coefficient) 0.64 mm
Cc (chromatic aberration coefficient) 0.72 mm
αtheor (theoretical aperture angle) 1.6×10-2 rad
LIGHT OPTICS
Objective Olympus M 40x NA* 0.95
Objective Olympus M 20x NA* 0.75
Objective Olympus M 4x NA* 0.13
*numerical aperture
ELECTRON OPTICS
CONDENSER LENS magnetostatic
electrostatic
Condenser aperture Ф 50, 50, 30 μm
OBJECTIVE LENS magnetostatic
Objective aperture Ф 50, 50, 30 μm
PROJECTION LENS electrostatic
double lens
ELECTRON GUN SE Cathode ZrO/W[100]
Current density 0.3 mAsr -1
Lifetime >2,000 hours
TEM IMAGE CAPTURE
Camera Scientific CMOS
Sensor Size 2560x2106 pixels
Digitalization 12 bit and 16 bit
Pixel Size 6.5 × 6.5 μm
Read Noise 1.2e -
SCAN IMAGE CAPTURE
Monitor (512×512, 1024×1024,
2048×2048)
Saving image up to 2048×2048 pixels
Digitalization 8 bits
VACUUM
AIRLOCK SYSTEM
Diaphragm and turbomolecular pump 10-5 mbar
OBJECT SPACE
Ion getter pump 10-8 mbar
ELECTRON GUN
Ion getter pump 10-9 mbar
CONSUMPTION
Control electronics in standby 25 VA
Control electronics 350 VA
Including airlock pumping system 550 VA
Camera 24 VA
PC and monitor 500 VA
No cooling water for the microscope is required
WEIGHTS AND DIMENSIONS
ELECTRON AND LIGHT OPTICS
Weight 80 kg
Dimensions 106×63×61 cm
CONTROL ELECTRONICS
Weight 80 kg
Dimensions 110×63×67 cm