Transmission Electron Microscope for Cryo Em

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Tenders are invited for Transmission Electron Microscope for Cryo Em 1 Set Classification of the Products to be Procured 24 Nature and Quantity of the Products to be Purchased Transmission Electron Microscope for Cryo Em 1 Set Type of the Procurement Purchase Basic Requirements of the Procurement Requirements for the Complete Set of the Transmission Electron Microscope for Cryo Em are Described below A a Transmission Electron Microscope for Cryo Em Equipped with a Cold Field Emission Gun Feg A it should be Equipped with a Cold Feg Which Produces a Highly Coherent Electron Beam The Energy Resolution is Supposed to be Less than 0 4 Ev without Using a Monochromator B the Accelerating Voltage should be Higher than 300 Kv C the Automated Specimen Exchange System should be Equipped It must be Able to Contain up to 12 Grids at the Same Time D the System should Contain a Direct Electron Detector Ded The Physical Pixel Size of the Ded should be Less than 5 m2 and it has 24 Megapixels 5 760x4 092 Field of View The Readout Speed of the Ded should be 1 500 Full Frames Per Second It Contains the Gpu Based Motion Correction Feature B a Vacuum Evaporator this is Needed to Prepare Amorphous Carbon Layer for Grid Preparation A the Reachable Vacuum Degree should be Higher than 1x10 4pa B a Cold Trap should be Equipped C a Glow Discharger this is Needed to Hydrophilize the Surface of the Grid for Grid Preparation A the Size of the Electrostatic Shield Electrode should be Larger than 50 Mm in its Diameter D an Automated Grid Plunging Devise this is Needed to Perform Plunge Freezing for Vitrification of Specimens A the Temperature of the Specimen Chamber should be Controllable at the Range from 4 to 60 B the Container should Keep 1 l Liquid Nitrogen for One Hour Time Limit for the Submission of the Requested Material 17 00 23 September 2020 Contact Point for the Notice Shigehiro Akiyama Procurement Services Office Finance Department Tohoku University 2 1 1 Katahira Aoba Ku Sendai Shi 980 8577 Japan Tel 022 217 4869

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