Electron Paramagnetic Resonance Facility


This laboratory is located in the basement of Maeser Laboratory (room 062). It is equipped with a Bruker EMXplus spectrometer.

Spectrometer Features:
  • Microwave Frequency: CW X-Band (9.0 - 9.8 GHz).
  • X-band Solid State Ultra Low Noise Microwave Bridge (200 mW max leveled source output, 60 dB max attenuation, 60 MHz tuning range).
  • Integrated Bridge Controller with real time display (automated tuning and cavity matching). Full Ethernet control of all functions.
  • Digital Ultra High Resolution Hall Field Controller (100 G – 18 kG operating range, up to 0 – 18 kG in one scan sweep range).
  • High Linearity Modulation Amplifier Module: 500 Hz – 120 kHz
  • High Sensitivity Probehead with optical window for CW-EPR in X-band (up to 10 mm sample tube access, 20 G max modulation amplitude, automated cavity matching, unloaded Q > 15,000, sensitivity weak pitch: 1800 : 1).
  • Liquid helium cryostat: 4 - 100 K.

 

Experiments:
  • Room Temperature
  • Time Scans (kinetics studies)
  • 2D (a second parameter can be varied along with the magnetic field)
  • Cryogenic experiments:
  • + VT unit, using liquid nitrogen, range: 100 – 500 K.
  • + Liquid helium cryostat, range: 4 – 100 K.
If cryogenic experiments (especially He temperatures range) are planned, please notify NMR/EPR Manager at least 2 weeks in advance. He needs to order the cryogens and prepare the system.

For more information and user training please contact:

NMR/EPR Facility Manager
Simon Sham

Department of Chemistry and Biochemistry
Utah State University
0300 Old Main Hill, Logan UT 84322-0300
ph: (435) 797-1673 or 797-0529
fax: (435) 797-3390