The transfer tube adopts the original triple-tube design! It reduces helium consumption.
The "Liquid Helium Cooling Device for Electron Microscopes" is a cryostat that continuously flows liquid helium to cool samples. Since electron microscopes are sensitive to vibrations, thin stainless steel tubes are used for helium supply and return to eliminate external vibrations. To minimize the expansion and contraction of the sample holder due to cooling, heaters are installed throughout the heat exchanger to control temperature-induced expansion and contraction, ensuring that there is no "movement" of the sample even at high magnifications. 【Features】 ■ Minimizes the expansion and contraction of the sample holder due to cooling ■ Designed to prevent any "movement" of the sample even at high magnifications ■ The dedicated transfer tube adopts our original triple-tube design to reduce helium consumption *For more details, please refer to the PDF document or feel free to contact us.
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【Specifications】 ■ Minimum guaranteed reaching temperature: below 15K (actual performance 4.5K) ■ Cooling method: liquid helium (liquid nitrogen can be used with optional unit) ■ Temperature control range: 15K to 300K ■ Temperature control accuracy: within ±0.1K of the set temperature ■ Cooling time: approximately 60 minutes to reach the minimum temperature (In cases of high magnification and long-term constant temperature measurement, it may take time for the state to stabilize) ■ Accessories ・Dedicated triple-tube LHe transfer tube ・Temperature controller and temperature sensor ・Gas handling system and diaphragm pump *For more details, please refer to the PDF document or feel free to contact us.
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【Usage】 ■Cooling *For more details, please refer to the PDF document or feel free to contact us.
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We provide equipment ranging from high-pressure gas (generally 15MPa: 150kg/cm²) to ultra-high vacuum regions (1x10⁻⁹Pa: 1x10⁻¹¹TORR), including both standard and custom products. Additionally, we can offer environments from high-temperature regions (2300°C) to ultra-low temperature regions (-270°C) as part of our equipment. Specifically, we can design and manufacture high-temperature vacuum heat treatment furnaces and vacuum low-temperature experimental devices upon consultation. Of course, we also provide utility piping for various equipment, as well as gases for the atmosphere and process gases. Please feel free to consult us with any inquiries.