Facilities
EPR Spectrometers
X-band CW EPR spectrometer (Bruker EMX)
• microwave frequency ~10 GHz
• temperature 3-300 K
• field range 0.005-0.5 T
• resonators 1 and 2, (rectangular resonators)
X/W-band pulse/cw spectrometer (Bruker ElexSys E680)
At X-band
• microwave frequency ~ 10 GHz
• temperature 2–300 K
• magnetic field 0-1.55 T
• resonator 1-5 (rectangular cavity, dielectric ring, dielectric ring ENDOR, split-ring)
At W-band
• microwave frequency ~ 94 GHz
• temperature 3.8-300 K
• magnetic field 0-6 T
• resonator 6
Resonators
Some useful information about the resonators available and the tubes and filling heights is given below.
X-Band CW Resonators
1. X-band Super High Sensitivity Probehead (~10 GHz, 4 – 375 K)
• Max. Sample Access 10 mm
2. X-band EMX High Sensitivity Probehead (~10 GHz, 4 – 375 K)
• Max. Sample Access 10 mm
X-band CW/Pulse Resonators
3. X-band Pulse-ENDOR Dielectric Resonator (EN 4118X-MD4, ~9.7 GHz, 2-300K)
• Max. Sample Access 4 mm (use <3.8 mm tubes ONLY)
• Sample centre 55 mm (tube longer that this)
• Resonator length 13 mm (filling height)
• CW or pulse mode
• Optically transparent 200 nm – 5 μm
4. X-band Split-Ring Resonator (EN 4118X-MS3, ~9.6 GHz, 2–323 K)
• Max. sample access 3 mm (use < 2.8 mm tubes)
• Sample centre 39 mm (tube longer that this)
• Resonator length 6 mm (filling height)
• CW or pulse mode (tπ/2 = 16 ns, Pmw=18 dB)
5. X-band Dielectric Resonator (EN 4118X-MD5, ~9.7 GHz, 2–323 K)
• Max. sample access 5 mm (use < 4.8 mm tubes)
• Sample centre 38 mm (tube longer that this)
• Resonator length 13 mm (filling height)
• CW or pulse mode
• Optically transparent 200 nm – 5 μm
W-band Resonator
6. W-band Pulsed ENDOR Resonator (EN600-1021H TeraFlex, ~94 GHz, 4-300 K)
• Max. sample access 0.9 mm
• Resonator filling length c.a. 3 mm
• CW or pulse mode
Sample Preparation Laboratory
1. Vacuum line
• operating at <10-5 mbar
• EPR tubes connectors for tubes with OD of 0.9 mm, 3.0 mm, 3.8 mm or 4 mm (allows you to take your EPR tube from i.e. a glovebox, to the vacuum line without contact to air)
2. Fumehood
3. Liquid nitrogen storage dewar for EPR samples
4. Storage Fridge/freezer
4. Work benches
5. Analytical balance
Lasers
For information regarding Laser facilities within CAESR please contact Dr. Kevin Henbest