Instrument Accessories
Available Cavities:
Standard (X-band)
- Useful for samples with strong EPR signals and teaching applications
- Compatible with variable temperature unit
- Accommodates tubes up to 10 mm o.d. (4 mm o.d. tubes with temperature control systems)
High Sensitivity (X-band)
- Useful for most research applications
- Compatible with variable temperature unit, helium temperature control system, goniometer, marker assembly, and AquaX cell.
- Accommodates tubes up to 10 mm o.d. (4 mm o.d. tubes with temperature control systems)
Dual Mode (X-band)
- Capable of performing perpendicular and parallel mode EPR experiments.
- Useful for systems exhibiting integer spins (non-Kramer systems)
- Compatible with variable temperature unit
- Accommodates tubes up to 10 mm o.d. (4 mm o.d. tubes with temperature control systems)
Optical Transmission (X-band)
- Useful for simultaneous UV/Visible irradiation of samples during EPR experiments
- Accommodates tubes up to 10 mm o.d.
CW-ENDOR (X-band)
- Continuous wave electron-nuclear double resonance spectroscopy
- Useful for identification of nuclei responsible for particular hyperfine splitting, in combination with complex EPR spectra to simplify spectral assignment and in studies of relaxation phenomena
- Compatible with variable temperature unit
- Accommodates tubes up to 4 mm o.d.
Q-band
- For investigation of samples at Q-band (34 GHz)
- Useful for simplification of spectra with large zero field splitting and high sensitivity for smaller samples
- Compatible with helium temperature control system
- Accommodates tubes up to 3 mm o.d.
Temperature Control Systems:
Variable Temperature Unit
- Liquid nitrogen system with accessible temperature range of 100 K to 500 K
- Useful for obtaining low and high temperature spectra and kinetic studies
- Computer controlled temperature settings
- Compatible with standard, high sensitivity, and CW-ENDOR cavities
- Accommodates tubes up to 4 mm o.d.
Helium Temperature Control System
- Liquid helium system with accessible temperature range 3.8 K to 300 K
- Useful for obtaining low temperature spectra and kinetic studies
- May also be used with liquid nitrogen with reduced temperature range
- Manually controlled temperature settings at interface
- Compatible with high sensitivity and Q-band cavities
- Accommodates tubes up to 4 mm o.d. (2 mm o.d. in Q-band)
Available Accessories:
Programmable 1-Axis Goniometer
- Computer controlled motor for positioning the sample with an angular resolution of 0.125 degree and a reproducibility of 0.5 degrees, independent of the direction of rotation.
- Useful for measuring EPR spectra of single crystals as a function of their angular position in the magnetic field
- Compatible with the helium temperature control system, variable temperature unit, and high sensitivity cavity
AquaX Aqueous Mixing Solution Cell
- A multiple bore design of closely spaced capillaries
- Useful for continuous flow measurements and can provide greater sensitivity than capillary tubes
- Compatible with high sensitivity cavity
Marker Assembly
- Provides EPR signal for precise field determination and signal amplitude standard
- Compatible with high sensitivity cavity
Sample Tubes
- Quartz sample tubes must be provided by the individual user. Tubes with a variety of closures are available to accommodate most samples. Tubes with 4 mm o.d. are suitable for most applications using X-band.