Facilities

EPR Spectrometers

(1) EMX: X-band CW

(2) E580: X-/Q-band CW/pulsed, on order

(3) E680: X-/W-band CW/Pulsed


(1) X-band CW EPR spectrometer (Bruker EMX)

esr
• microwave frequency 9.1-9.9 GHz (~0.32cm-1,w.l.~32.6mm)
• temperature 3-300 K
• field range 0.005-0.5 T
• resonators 1 and 2, (rectangular resonators)

 


(2) X-/Q-band pulse/cw spectrometer (Bruker ElexSys E580)
... Coming soon !!!

At X-band, 1kW
• microwave frequency 9.1-9.9 GHz (~0.32cm-1,w.l.~32.6mm)
• temperature 2–300 K
• magnetic field 0-1.55 T
• resonator 1-5 (rectangular cavity, dielectric ring, dielectric ring ENDOR, split-ring)

At Q-band, 140W
• microwave frequency 33-35 GHz (~1.13cm-1,w.l.~8.8mm)
• temperature 3.8-300 K
• magnetic field 0-1.55 T
• resonators


(3) X-/W-band pulse/cw spectrometer (Bruker ElexSys E680)

esr
At X-band, 1kW
• microwave frequency 9.1-9.9GHz (~0.32cm-1,w.l.~32.6mm)
• 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, 200mW
• microwave frequency ~ 94 GHz (~3.14cm-1,w.l.~3.2mm)
• temperature 3.8-300 K
• magnetic field 0-6 T
• resonator 6

ITC503 temperature status



Resonators

esr 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