看了null的用户又看了
Alto 2500 Cryotransfer for SEM
Cryotransfer for SEM allows imaging and analysis of biological and other hydrated, beam or vacuum sensitive specimens.
Specification of Alto 2500
Nitrogen cold stage (-185°C to +100°C) and interface to SEM stage
Anticontaminator and lamp assembly
Nitrogen 'heat exchange' dewar and gas feedthroughs to SEM chamber
Ball valve incorporating microswitches plus mechanical interlock and interface to SEM chamber
High vacuum cryo preparation chamber, with integral nitrogen dewar, sample platform and variable temperature facility (-185°C to +100 C)
Cold knife fracturing device
Binocular viewer, x10 and x20 magnification
Cold Magnetron sputter source for high resolution sputter coating (supplied with AuPd and Pt target)
Airlock gate valve with interface for vacuum transfer device
Turbomolecular pump system for cryo preparation chamber with 70 L/sec pump, high and low vacuum gauges
Keypad control unit for vacuum, coating and temperature control, also system logic status
Vacuum transfer device
'2-pot' freezing station for producing nitrogen slush and loading pre-frozen samples
Multi-functional two stage rotary pump, with exhaust filter, flexible pumping lines, foreline trap and ballast reservoir
Power electronics and solenoid valves, mounted in floor standing cabinet
Specimen holders including a range of stubs and rivets
Self pressurising N2 dewar with gas flow regulator for cooling SEM cold stage and gas purging
Spare parts kit
Options
Carbon coater
Additional specimen holders
Rotary knife with micrometer control
Quartz film thickness monitor
Alternative coating targets, e.g. Pt, W and Cr (for microanalysis)
Specimen preparation techniques provided with every Alto system include rapid freezing (to preserve hydrated state), vacuum transfer (to prevent contamination), cold fracture (to expose internal microstructure), freeze etching (to clarify non aqueous components) and coating (to allow high resolution surface imaging and X-ray analysis).
Alto 2500 has been specifically designed to allow highest resolution performance together with Field Emission SEMs.
