• Combi X-ray cryostat

Sample in helium or nitrogen gas flow (xrayCRYO105, xrayCRYO105N2)
Sample in vacuum 10^-3 or inert gas (xrayCRYO105vac, xrayCRYO105N2vac)

The xrayCRYO105 enables all kinds of X-ray measurements. The xrayCRYO105 is universal liquid He/N2 cryostat for X-ray studies in temperature region 1.8 – 273 K. The cryostat is compatible with common goniometric heads. Using our inserts you can apply mechanical stress or electric field to the sample during a low temperature experiment. The xrayCRYO105 is a combi cryostat which uses advantages of bath and continuous flow cryostats. Cooling agent placed in a reservoir inside the cryostat body is flowing into the sample room through the capillary to cool the sample. The low cryogen consumption (< 0.1 l/h) enables operation time more than 20 hours. The temperature control is based on the simultaneous regulation of the resistive heater temperature and helium (nitrogen) gas flow rate. The xrayCRYO105 can be used as a nitrogen cryostat when the helium reservoir is filled by liquid nitrogen (modification xrayCRYO105N2).

All cryostats of the xrayCRYO105 family use temperature regulation system with tSTAT310x controller and Manostat.

Operation

Insiide the cryostat body are located the liquid nitrogen and helium reservoirs. The nitrogen bath cools the radiation screen. Liquid cooling agent flows through the capillary into the sample room and evaporates on the heat exchanger. The temperature at the sample room is controlled by the gas flow rate and resistive heater power at the heat exchanger. The probe is placed in a gas flow directed upwards. The flow rate of the cryogen gas is regulated by differential pressure regulator and electrical needle valve controlled by electronic unit outside of the cryostat. The combined gas flow and heat exchanger temperature regulation results in high temperature stability and in a low He (N2) consumption. The temperatures below 4.2 to 1.8 K can be reached by helium gas pumping. Samples are top loading by the use of sample holders.

Basic parameters and modifications of xrayCRYO105 cryostats

* – Temperature regulation system tSTAT310x is strongly recommended.

Rotating mechanism

Complete system

1. xrayCRYO105 cryostat.

2. Temperature controller tSTAT310x with Manostat.

3. Vacuum isolated transfer line.

4. Sample holder.

Optionally

1. Optimization of windows configuration for X-ray experiments.

2. Windows material

• Beryllium.

• Mylar.

3. Additional optical windows above the beryllium windows: maximal aperture of an optical window is 32°. Clear diameter of an optical window up to 20 mm.

4. Distance between windows and the cryostat bottom 65 – 400 mm.

5. Rectangular cryostat tail for experiments in magnetic field. Minimal distance between magnet poles is 40mm.

Additional equipment

1. Sample holder

• Goniometric head on the sample holder.

• X, Y, Z adjustment unit of samples ±15 mm.

• Sample rotation by 360° around vertical axis.

• Mechanical stress application at cryogenic temperatures: maximal loading 200 kg.

2. XYZ cryostat support adjustable to the X-Ray apparatus.

3. He-transfer line

• Variable length connection.

• Flexible connection.

4. Sample rod with a universal flange.

5. Measuring heads for sample holder.

6. Multipin electrical connector on the sample holder.

7. Storage He or N2 dewar.

8. Dewar transport platform.

Key benefits

• Mechanical stress application.

• Goniometric head inside of the cryostat.

• Optical access to the sample.