TAC100 and TAC200 Series Anti-Contaminators
Minimize contamination in the vicinity of the specimen within the TEM.
The TAC100 series liquid nitrogen anti-contaminators act as miniature cryo-pumps to minimize contamination in the vicinity of specimens within the transmission electron microscope (TEM) optical column. The TAC200 liquid helium anti-contaminators are used with helium cooling holders.
- Blades of the TAC100 series anti-contaminators can be fully retracted or positioned near the tip of the TEM specimen holder using a three position bayonet collar
- Blades can be configured as single, double, or tubular
- Stainless steel flexible bellows allows movement of blades in and out of the specimen area of the objective lens without loss of vacuum
- Conduction rod and blades are electrically isolated from the TEM, which allows the blades to be linked to a separate touch alarm to warn the user in the event specimen holder is tilted too far
| Model number | Cryogen | Minimum temperature | Standard gold plated copper blades diameter (mm) | Optional beryllium blades diameter (mm)1 | Blade positions | Hold time |
|---|---|---|---|---|---|---|
| TAC100 | Liquid nitrogen |
Less than -180 °C |
1.0 | 0.5 | 3 | 6 |
| TAC200 | Liquid helium | ~10 K | 1.0 | 0.5 | 3 | 4 |
