Product Announcement from Phenom-World BV

Temperature Controlled Sample Holder-Image

Phenom-World has developed, together with its preferred development partner Deben, a Temperature Controlled Sample Holder to study vacuum-sensitive and vulnerable samples. The Temperature Controlled Sample Holder is able to control the temperature by cooling or heating the sample and therefore influence the humidity around it. This minimizes the charging effect of the electron beam and vacuum damage to the sample.

The Temperature Controlled Sample Holder is based on the Peltier principle and designed in a way that the temperature can be adjusted quickly and easily. The sample temperature is accurately monitored and controlled by a dedicated keypad controller. The temperature of the Temperature Controlled Sample Holder can be controlled from -25°C to +50°C, with an accuracy of ±1.5°C. The temperature can be changed at a rate of max 20°C per minute, depending on the sample mass. The Temperature Controlled Sample Holder is water-cooled for excellent temperature stability by a self contained closed-loop water chiller box.

The low vacuum inside the Temperature Controlled Sample Holder, combined with a temperature of -25°C, keeps the relative humidity at a constant high level. This results in slowing down water evaporation significantly and prolonging viewing time before specimen degeneration.

The interface shows the set and actual temperature. The Temperature Controlled Sample Holder can be retrofitted to all versions of the Phenom G2 system.

Benefits of the Temperature Controlled Sample Holder:
• The sample structure will keep its natural structure as less water will evaporate.
• Longer viewing time of biological and organic samples, without noticeable vacuum artifacts
• Reduced beam damage

 
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