The X-20 interface uses a Helium exchange gas to decouple the sample space from the cold tip of the cryocooler. This prevents almost all vibration from being transmitted from being transferred to the sample space. Scientists have demonstrated vibration levels as low as 3-5nm with the CS202*E-DMX-20.

1. The Cryocooler is supported by a Floor stand
2. The soft rubber bellows minimize the vibrations transmitted to the sample while keeping in the Helium exchange gas.
3. The X-20 interface has no contact with the cryocooler except through the rubber bellows.
4. The Cold tip has 10-30 micron vibrations (depending on CCR model) but no direct contact with sample space.
5. Convective pockets of Helium exchange gas cools the sample space.
6. The Sample only in contact with X-20 Interface
7. Windows for optical Experiments
8. The X-20 interface is mounted directly on a (user provided) Vibration Isolation Table

The DE-210SF cold head is a precision machine carefully tuned to achieve temperatures below 3 K with 0.8 W of cooling power at 4.2 K.

The DE-210AFcold head is a rugged workhorse built with power and durability in mind achieving temperatures below 9 K with 4 W of cooling power at 10 K.

Our high temperature interfaces use a unique combination of mechanical and thermodynamic properties to create a high temperature thermal disconnect between the cold head and the sample space. This allows for heating of the sample space far in excess of the maximum 355K temperature of our cryocoolers.

450K The easy way

Our 450K interface is a simple semi-perminant addition to the cold tip that expands the upper sample temperature range by 95K utilizing most of the same instrumentation as our standard cryocoolers.

800 K Pouring on the Heat

Our specially design 800K interface goes beyond the standard techniques to provide a unique system that maximizes thermal conduction at low temperatures while minimizing heat transfer at high temperatures. Beyond the safe operating temperature of Silicon Diodes the standard sensors are replaced with E-type Thermocouples and Platinum RTDs.

From our standard offerings of single strand copper and low noise coaxial wiring packages, to any number of custom wiring configurations, our technicians painstakingly wrap each cold head for optimum thermal anchoring.

Typical instrumentation for temperature measurement and control include, one 50 ohm thermofoil heater, one curve matched silicon diode for rough temperature control, and one free length calibrated diode for direct attachment to the sample or sample holder for accurate temperature measurement. Silicon diode sensors are favored heavily for most standard applications, because of their low cost, durability, and stability, but we do offer a wide variety of other sensors for different applications such as Cernox sensors for high magnetic fields, E-type thermocouples for 4 K - 800 K measurements, and Platinum RTD's for accurate high temperature measurements.

Our wide selection of wiring and instrumentation is matched by an equally wide selection of temperature controllers from Cryocon, Lakeshore, and Scientific Instruments.

Window Materials for all Transmission Ranges

High purity quartz is the standard window material for most of our optical cryostats, but we have a wide variety of other window materials available, from near IR materials like CaF₂ and KBr, to far IR and terrahertz like Ultra High Molecular Wright Polyethylene and Picarin, to Kapton, Mylar and Beryllium for X-ray experiments. If you don't see the window material you're looking for please contact one of our sales representatives.

Optimized for Weak Signal Collection with Minimum Heat Load

The tiered optical access of the 1.25" clear view vacuum shroud window and radiation shield optical ports allows for a large cone of optical access (F/1.8) and at the same time limited the area of exposure to 300K thermal radiation.

Low Stress Window Mounts

Our window ports are designed to gently cradle the window material creating a low stress seal that limits optical distortions

Whether the measurement is optical or electrical in nature, the sample large or small, we have a sample holder for almost any measurement. The CS210*F-DMX-20 can accept all but our largest sample holders. As will all of our cold fingers the DE-210 has a 1/4-28 threaded hole on the cold tip to mount the sample holder. So even if you do not find what you need from our wide variety of sample holders there is always the option of attaching a custom sample holder.

The water cooled ARS-10HW compressor that powers the DE-210 Series Cold heads has many benefits that are amplified in small laboratory settings. The water cooling redirects heat energy that would otherwise be dumped into the lab, by a large cooling fan. The lack of a large cooling fan also dramatically reduces the noise of these compressors (only 60 dBA). Additionaly with minimum air circulation, the air currents and dust are kept to a minimum. The high efficiency heat exchanger results in low water usage, and saves space inside the compressor giving it a small footprint.