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Microstat He2 RT

Oxford Instruments

Microstat He2 RT Helium optical cryostat 2.2 K, 500 K with narrow tail (Retangular Tail)

A liquid helium cooled, vacuum loading continuous flow (CF) cryostat with a special narrow tail for optical microscopy and spectroscopy measurements that require:

• Small working distance
• 2 - 500 K temperature range
• Optical access in two orthogonal directions
• Integration into an electromagnet
• Operation in any orientation

The core "cold unit" of the MicrostatHe2 Rectangular Tail, MicrostatHe2 and OptistatCF-V  is inter-changeable, enabling a modular set of optical cryostats for different experimental set-ups by swapping only the outer body.
  • Specifications
  • Windows
  • Pump options
  • Temperature controller
  • Transfer tubes
  • Software control
  • Acessories
  • PDFs

Optical specifications

Window thickness 1.0 mm

Clear access diameter

20 mm

Sample holder to window top surface

8 mm

Angle of admittance (to surface of sample
holder at centre)


Max sample thickness

4 mm

Max sample diameter

20 mm

• A wide range of window materials can be fitted to the MicrostatHe2 - see the ´Windows for optical cryostats guide´ in Downloads
• Standard window thickness is 0.5 mm with clear 10 mm access diameter. We also offer an option for a 25 mm access diameter window with a thickness of 1.5 mm
• Transmission experiments use an alternative bottom flange with a second window fitted and a transmission sample holder
• Additional or replacement window flanges available via the Oxford Instruments Direct - Cryospares® on-line catalogue
• A simple GF4 oil-free vane pump is supplied for operation to 3.2 K
• Lower temperatures to 2.2 K use a single-stage EPS40 rotary pump

• MercuryiTC intelligent Cryogenic Environment Controller
•Choose an LLT600 or LLT700 low loss LHe transfer tube for minimum helium consumption - less than  0.45 l/hr at 4.2 K!
•An automated  needle valve can be fitted to the LLT to allow automation of the helium flow regulation and optimisation of the helium consumption
•Oxford Instruments electronics products are controllable through the OxSoft software using RS232, ISOBUS or GPIB interfaces
•LabVIEW virtual instruments are provided for Oxford Instruments electronics products to allow full PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system
NEW Transfer tube - It plays an important part in the overall helium consumption and base temperature capability of helium cooled cryostat.

Oxford Instruments Low Loss Transfer tubes (LLT) use the cold gas exiting the cryostat to cool the shields surrounding the incoming liquid within the transfer tube.  As a result, the consumption of our cryostats is the lowest on the market, dramatically reducing your running costs.

We can also offer an extra flexible transfer tube for those with restricted space in their labs.  Please note that as this does not use the gas cooled mechanism, helium consumption will be higher that for the LLT range.  However it will be well suited to those who need lightweight and more flexible transfer tube.
NEW Gas flow controller- The new VC-U gas flow controller now includes the nitrogen and helium flow meters as standard.
NEW Intelligent cryogenic environment controller- Easy monitoring and control of the sample stage.  The MercuryiTC controller combines several instruments into one allowing temperature control at the heat exchanger and gas flow control as well as an extra sensor channel for thermometry measurement directly at the sample stage.  Everything can be accessed through touch screen front panel and remotely via Labview compatible Oxsoft IDK software.

Example MicrostatHe2: You can control the temperature with a sensor and heater at the heat exchanger, monitor and control the gas flow AND have an extra sensor channel to measure sample temperature.
NEW Magnet power supply- Best in class stability performance and optimised for accuracy and low noise. 
New Oxsoft IDK instrument development kit software - With the new Oxsoft IDK, you have new levels of control.  You can design remote control and configuration programs and integrate your system into your preferred experiment control architecture.