schottky gun emission scanning electron microscope

{"cid":"91091321","title":"Opto Edu A63.7140A63.7160 2000000x Schottky Field Emission Scanning Electron Microscope","imgUrl":"https:\/\/img.chinax.com\/nimg\/70\/64\/23681d8af243d438a6c4bb4adbbe-200x200-1.jpg","attrs":{"Price":"FOB $1~1000, Depend on Order Quantity","Brand Name":"CNOEC, OPTO-EDU","Model Number":"A63.7040","Minimum Order Quantity":"1 pc","Delivery Time":"5~20 Days","Certification":"CE, Rohs","Place of Origin":"China","Payment Terms":"T\/T,West Union,Paypal","Supply Ability":"5000 pcs\/ Month","Packaging Details":"Carton Packing, For Export Transportation","Resolution":"0.9nm@30kV(SE) 1.4nm@15kV(SE)","Magnification":"1\uff5e2000000x","Electron Gun":"Schottky Field Emission Gun","Voltage":"0.02kV\uff5e30kV","Electron Beam":"1pA~40nA","Dwell Time":"20ns"}}

{"cid":"91191829","title":"KYKY Field Emission Scanning Electron Microscope \/ Scanning Electron Microscopy Instrumentation","imgUrl":"https:\/\/img.chinax.com\/nimg\/9a\/2f\/e7d3e1940ffb0a71e74f93449060-200x200-1.jpg","attrs":{"Brand Name":"KYKY","Model Number":"EM8010","Place of Origin":"China","Certification":"CE","Resolution":"SE 1.5nm@15kV BSE 3nm@30kV","Magnification":"1x-600000x","Accelerating Voltage":"0.2kV-30kV","Max Specimen Diameter":"175mm"}}