The Bruker EMX-Plus EPR spectrometer is equipped with a ColdEdge cryostat for cryogen-free liquid-helium temperatures. This is a standard continuous-wave (CW), X-band (9.4 GHz) EPR spectrometer which regulates temperature down to 5K. Samples may be illuminated in the resonant cavity during operation.
Specifications
Frequency:
- X-band (9.4 GHz)
Field Strength:
- 0 – 700 mT
Microwave Power:
- 200 mW – 2 μW
Sample Size:
- 4 mm O.D. tube (with cryostat)
- 3 – 6 mm O.D. tube at RT
Temperature:
- 5 K – 298 K
Cryostat:
- ColdEdge Cryogen-free helium cryostat
Software:
- Xenon (Bruker)
Techniques
Resonator:
- Continuous-wave (CW) perpendicular mode (ER 4119HS High Sensitivity Resonator)
- Continuous-wave (CW) perpendicular and parallel mode (ER 4116DM Dual Mode Resonator)
Optical window:
- 2 mm
Time resolution:
- 5 ms
Availability
Access/Training:
- Request an appointment via FOM (Internal users)
- Email Luke Lewis (External Users)
Time:
- Users can sign-up on FOM from 9am to 6pm (M-F) for cryogenic temperature operation (5 – 80 K). Intermediate and room temperature (80 – 300 K) is available by request only. Experienced users can request access to use during nights & weekends.