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ER 4112HV Helium Temperature Control System
The low temperature control system, ER 4112HV, makes use of liquid helium as coolant. The accessible temperature range is 3.8 K to 300 K. The system consists of the following parts:
- Continuous Flow Liquid Helium Cryostat with 10 mm o.d.
- Quartz Dewar
- Sample Holder
- Digital Helium Control Unit
- Liquid Helium Flow Controller
- Helium Transfer Tube
- Membrane Pump
- Tubing Clamps for attaching the cryostat to the magnet
X-Band waveguide-type cavities are mounted to the liquid helium cryostat (see right), while the sample is inserted into the quarz dewar. Therein, it is held in a steam of temperature controlled helium gas.
Sample exchange at any temperature is a standard feature of this system. The digital helium control unit monitors and controls the temperature measured with a thermosensor close to sample's position. It features PID temperature control (proportional, integral and derivative). The control unit is fully remote controlable via the acquisition software Xepr or WinEPR Acquisition of the ELEXSYS and EMX spectrometer series.
ER 4118CF Cryostats
- ER 4118CF-O cryostat mounted with the EN 4118X-MD4 Pulse ENDOR Resonator
The ER 4118CF series of cryostats are the ideal match for Bruker BioSpin's range of Flexline Resonators and Q-Band Resonators. The resonator and the sample are both inserted into the cryostat. By design, the sample can be removed and exchanged with ease throughout the temperature range . Key features of the ER 4188CF series are:
- Compatible with Helium Temperature Control System ER 4112HV
- Compatible to all EPR electromagnet systems
- Wide Temperature Range: 3.8 K to 300 K
- Excellent Stability: +/- 0.1 K (below 20 K)
- Option: 5 mm or 10 mm window for light access (ER 4118CF-O, -R10)
- Dedicated Cryostat, ER 4118CF-W for the ELEXSYS E600/680
ER 4113HV-1021 Vacuum Pump Station
Bruker BioSpin also offers a Vacuum Pump Station to provide you with a complete solution for your liquid Helium-based temperature measurements. Ask us or your Bruker BioSpin representative for further information or options.