Benefits
- Temperature Range: 80-500 K
- Cryogen: None (Mechanically Cooled)
- Stability: +/- 0.1 K
- Fast Cool Down: ~60 minutes (~50 minutes to 100 K)
- Run-Time: Endless
Typical Applications
- 80 – 100 K: Produces high-precision diffraction data
- 180 – 293 K: Reveals hidden dynamics
- 300 – 500 K: Enables investigation of phase transitions
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| Refrigerator & Gas Head* | |
|---|---|
| Dimensions & Weight | 28 x 20 x 28 mm, 15 kg |
| N2 Intake | 5 or 10 L/min |
| K450 Helium Compressor | |
|---|---|
| Weights & Dimensions | 64 x 61 x 54 cm, 100 kg |
| Supply Fuse Rating | 20 A (Starting Current: 65 A) |
| Cooling Requirements | 3kW Water Chiller† or plumbed supply Flow rate 5 L/min at 18°C |
| N2 Supply (Required) | |
|---|---|
| Purity | >97.5% |
| Pressure | 1 – 1.4 bar‡ |
| Flow | ~25 L/minute |
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* These items are permanently joined and form an integrated assembly
† Water Chiller not provided
‡ Regulator Kit available
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Options
Configure the Cobra to meet the needs of your research. These options support a broad range of applications, and enable integration into a variety of experimental setups. Many of these began as bespoke solutions for specific customers, and we remain committed to ensuring that nothing stands in the way of our customers advancing their science.
Wide Nozzle
The Wide Nozzle enables stable cooling of larger samples, improves compatibility with mounted or embedded specimens, and can reduce X-ray beam shadowing by increasing the working distance between the nozzle and sample.
Cobra Plus
Cobra Plus extends the operating temperature range up to 500 K, enabling precise and reproducible heating of samples above ambient temperature. This expanded range supports a wider variety of experiments, from catalyst and semiconductor studies to advanced materials research.
Compact Nozzle
The compact nozzle reduces the overall length of the coldhead by 134 mm, making it ideal for installations where space is limited. Its shortened design also supports applications requiring horizontal sample access or constrained experimental geometries.
Longer Transfer Line
The longer transfer line extends the distance between the Cobra refrigerator and coldhead, providing greater flexibility when integrating the system into large X-ray diffraction cabinets or laboratory environments.
Accessories
The base Cobra system contains the main refrigeration unit with attached a gas delivery head, and a helium compressor. Alongside this base system, users have the option to enhance their setup with additional accessories.
NitroFlow Nitrogen Gas Generator
For laboratories that do not have an in-house supply of nitrogen, we supply a bespoke variant on the Parker Hannifin NitroFlow Nitrogen Gas Generator, which extracts pure nitrogen from the air. The generator has 2 outlet ports, providing gas at 1.2 bar for both inner and outer gas streams of the Cobra.
Varibeam
The Varibeam stand provides a sturdy yet lightweight support for the coldhead, designed for compatible with a range diffractometer configurations. It facilitates easy and precise adjustment of orientation and positioning of the nozzle to ensures accurate alignment of the gas stream onto the sample.
Cobra Table Stand
This table stand has been specifically designed to house the various components of the Cobra system, providing an organised space to manage cables and wires.
