產品類型 / Product Type：
Closed Cycle Optical Cryostat 1.5K or 4K
產品應用 / Application：
1.5 K or 4K to 300 K, with large sample space, bottom and top-loading version for fast sample change, low vibration (ideal for detector applications)
相關網址 / Link：
規格說明 / Specification：
Our closed cycle optical cryostat temperatures down to 1.5 K without the need for liquid helium. Low base temperature and easy to use.
It is the cryostat of choice for applications such as detector cooling requiring low vibration, a low base temperature and a large sample space.
Wide temperature range from 1.5 to 300K
4 K base temperature models are also available
Versatile with sample environment available as vacuum or exchange gas
Top-loading and bottom-loading systems available
Fast cool down time: cool down to 1.5 K in less than 6 hours
Low vibration using a Pulse Tube Refrigerator. The rotary valve in the cold head directs the helium gas in and out the expansion tubes dropping the temperature to 2.8 K without the use of displacers
Electrical measurements via 10-pin electrical feed wire to heat exchanger and/or wired on coax connectors