Picture of EPR Spectrometer
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AVAILABLE
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Bruker Elexsys-II E500 CW system comprises:

  • X-band (9.3 GHz) bridge
  • Q-band (35 GHz) bridge
  • ENDOR (X-band CW)
  • Liquid helium flow cryostats for low temperature measurements at X- and Q-bands, and ENDOR.

 

Technical specification:

X-Band CW EPR

  • Working frequency range: 9.2 – 9.9 GHz;
  • Output microwave power in levelled mode: 200 mW;
  • Super-High Sensitivity CW-EPR Resonator
  • Unloaded Q-factor: > 16 000;
  • Max modulation amplitude: 20 G;
  • Window for optical access;
  • Weak Pitch signal-to-noise ratio: 3000 : 1;
  • Absolute sensitivity: 1.0 x 109 spins / 1 G line width;
  • Low temperature measurements: 3.8 – 298 K operated with liquid helium flow cryostat
  • Measurements at 77 K with liquid nitrogen finger dewars
  • Automated goniometer for angular dependency measurements of single crystals

 

Q-Band CW EPR

  • Working frequency range: 33.85 – 34.15 GHz;
  • Max output microwave power: 80 mW;
  • Max sample access: Æ3 mm;
  • Max modulation amplitude: 20 G (100 KHz);
  • Weak Pitch signal-to-noise ratio: 2000 : 1;
  • Absolute sensitivity: 1 x 109 spins / 1 G line width;
  • Low temperature measurements: 3.8 – 298 K operated with liquid helium flow crysostat. For Q-band measurements whole cavity is cooled.

 

Magnetic field Specs

  • Operating range: -1 … +17 kG
  • Integrated rapid scan coils;
  • Impedance 3 Ω, water cooled;
  • Rapid scan
  • Magnetic field ramp range: up to 200 G;
  • Scan rate: up to 200 Hz;

X-BAND CW ENDOR Unit DICE-II CW ENDOR/TRIPLE System

  • X-Band CW
  • Frequency modulation with up 100 kHz rate and
  • up to 5 MHz amplitude
  • Amplitude modulation with 50 % duty cycle
  • ENDOR Induced EPR (EIE)
  • 2D ENDOR vs. Magnetic Field
Tool name:
EPR Spectrometer
Area/room:
511
Category:
Spectroscopy
Manufacturer:
Bruker
Model:
Elexsys-II E500
Tool rate:
A
Max booking time, day:
hours
Max booking time, night:
hours
No. of future bookings:

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