PP2000 and PP2000T Cryo-SEM Systems
Cryo preparation techniques for Scanning Electron Microscopy (SEM) have become essential for the observation of “wet” or beam sensitive samples.Using such  techniques removes the need for conventional preparation techniques, such as critical point drying or freeze-drying, and allows observation of the sample in its "natural" hydrated state.

Cryo-SEM is a very rapid technique, typically taking only a few minutes. The sample is rapidly cooled and transferred under vacuum to the cold stage of the preparation chamber, which is mounted on the SEM chamber.The preparation chamber is pumped either with a rotary pump (PP2000 - recommended for standard SEMs) or by a specially designed turbomolecular pumping system (PP2000T - see below).

The PP2000 series include all the facilities for rapid sample freezing, vacuum transfer, freeze etching (to reveal greater specimen detail) and sputter coating - to allow high resolution surface imaging. Features of the PP2000 series include its unsurpassed thermal stability and highly efficient cold trapping within the SEM.

There are two models: the PP2000 is rotary pumped and primarily designed for standard(tungsten) SEM applications, the PP2000T is turbomolecular pumped and is particularly suited to FE-SEM and FIB/SEM applications.

Key Features & Benefits:

• Rapid sample preparation - typically less than 10 minutes
• Independent cooling of SEM stage and SEM cold trap - essential for high resolution imaging
• Precise control of cooling gas - optimum thermal stability
• Easy to use - rapid operator knowledge transfer
• “Cool” sputtering head - fine grain, high resolution coating
• Unique high thermal stability SEM stage - excellent stage stability
• Comprehensive cold trapping - essential for routine high resolution imaging
• Novel advanced sample handling option - easy manipulation of pre-frozen samples
• High visibility read-outs for temperature and vacuum - all important parameters can be easily seen by the operator seated at the SEM