Cordouan TEM Microsc..

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Wide choice of imaging modesThe LVEM 5 is the smallest commercial transmission electron microscope in the world. It features all the standardimaging modes that can be found in conventional TEMs and more. The LVEM 5 can work in transmission (TEM –Transmission Electron Microscope) or diffraction (SAED – Selected Area Electron Diffraction) modes as well as in scanningmodes (STEM – Scanning Transmission Electron Microscope and SEM – Scanning Electron Microscope with BSE – BackscatteredElectrons) with nanometer spatial resolution.TEM (with SAED)TEM (with SAED) + STEMTEM (with SAED) + SEMTEM (with SAED) + STEM + SEMApplicationsAll-in-one, all-for-you...LVEM 5 is a novel solution for imaging in life sciences and materials science (macromolecular chemistry).Easier sample preparation techniquesConventional preparation techniques are simplified because staining and shadowing may be avoided. The observedimage is the real structure without any artifacts stemming from staining or shadowing, closer to the native state of yoursamples. The sample thickness should be up to 50 nm in TEM mode, up to 70 nm in STEM mode, depending on thesample material. The samples are placed on standard 3 mm discs or grids.
Technical specificationsImaging modesTEMresolving power2.5 nmtotal magnification* 1,500-202,000*depending on the camera shipSTEMresolving powerminimum magnificationSEM (BSE detector)resolving powerminimum magnificationED (electron diffraction)minimum probe size2.0 nm6,000 (25 x 25 μm)4 nm800 (200 x 200 μm)100 nmdiffraction lens magnification 3.5Electron opticsCondenser lens (permanent magnet)focal length*4.30 mmthe smallest illumination area 100 nmcondensor apertures!"50, 30 μm*calculated for 5 kVObjective lens (permanent magnet)focal length*1.26 mmC s(spherical aberration coefficient) 0.64 mmC c(chromatic aberration coefficient) 0.89 mmδ teor(theoretical resolution)1.1 nmα max(theoretical aperture angle) 10 -2 radobjective aperture! 50, 30 μm*calculated for 5 kVProjection lens (electrostatic)magnification on the YAG screen 36-470Accelerating voltage (nominal)Specimentime for sample exchange5 kVstandard !"3.05 mm gridsapprox. 3 minElectron GunSE cathode ZrO/W[100]current density 0.2 mA.sr -1lifetime>2,000 hoursWeight and dimensionsLight opticsElectron and light optic systemweightdimensions (WxDxH) withoutcamera25 kg290x450x430/480 mmAirlock pumping system Pfeiffer Vacuum TSH 071Eweightdimensions (WxDxH)Control electronicsweightdimensions (WxDxH)VacuumAirlock systemdiaphragmal pumpObject spaceion getter pump (10 L.sec -1 )Electron gunion getter pump (7 L.sec -1 )15 kg300 x 300 x 340 mm19 kg470 x 270 x 290 mm10 -5 mbar10 -8 mbar10 -9 mbarobjective Olympus M 40x NA 0.90objective Olympus M 4x NA 0.13binocular M 10xOlympus U-TR30-2 wide field trinocular observation tubeTEM image capturecameraresolutiondigitalizationpixel sizecoolingScan modes image capturemonitorRetiga 4000R CCD2048 x 2048 pixels12 bits7.4 μm x 7.4 μmoptional Peltier coolingavailable512 x 512 pixelssaving image up to 2048 x 2048pixelsdigitalization8 bits
Page 1 and 2: LVEM 5Low Voltage Transmission Elec
Page 3: ComponentsField emission gun (FEG)

Cordouan TEM Microsc..

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