RadicalScope mt 500-L (L-Band, 1 - 1.5 GHz)

Detectable Species for Quantification

• Free radicals in vivo or in samples with high water content

Spatial Signal Resolution

• Spectral, spectral-spatial, 2D imaging and 3D imaging in dependence of gradient systems for spatial signal resolution

Object of Investigation

• Mouse, rat, skin, tooth, tissue

Temperature of the Sample

• Room temperature

Resonators

• Surface coil resonator, with automatic matching control, compensating movements e. g. breathing of an animal, coil diameter 8 and 10 mm

• Re-entrant resonator, highest sensitivity, suitable for measurement in the tail or head of a rat, accessible diameter 18 mm

Detection Limit

• Depends on type of resonator and the filling factor
• Re-entrant resonator: 1 µM signal to noise ratio 5 : 1, TEMPOL in 50 mM phosphate buffer, pH 7,4

Spatial Resolution of EPR Signals

• Spatial signal resolution 0.1 mm for spectral spatial and 1 mm for 2D and 3D imaging in dependence on the line width of the signal

Three 200 µl capillaries orientated and filled the way shown above.The y-axis gives the spatial information about the distance; the x-axis shows the spectral information.

Delivery

• Magnet especially designed for L-band
• Magnet power supply
• Microwave bridge
• Power supply for control and microwave bridge
• Computer and 17'' TFT monitor
• Standard-Software
  RadicalScope Control
  (control software):
  • Adjust of the measurement parameters
  • Manual tuning
  • Recording of Spectra
  • Saving of data
  • 4096 data points per spectrum, etc.

Extensions for the RadicalScope mt 500-L you can find in the Catalogue (EPR Spectrometer)

Technical Data

• Analysis (calculation software):
  • Amplitude calculation
  • Integration
  • Baseline correction
  • Filtering
  • g-value estimation
  • Summation of spectra, etc.
• Multiplot (presentation software):
  • Overlay of spectra
  • Display of spectra in series
  • Adaptation of the gain
  • X-Axis title selection: data points, field or time
  • Export of data in ASCII files, etc.

Computer System

Processor		from Pentium II upwards
Operating system		Microsoft Windows 98 SE, 2000 und XP
Interface		PC controlled by Sorcus board

Microwave Bridge

Microwave power		100 µW - 100 mW
Microwave frequency		1 - 1.5 GHz
Control		Control Unit CU5
Tuning		Manual tuning

Magnet Power Supply

Stability		10-6/min
Output power		500 W

Optional Resonators

Surface coil resonator
Re-entrant resonator

Electro Magnet

Modulation amplitude		0.5 µT - 0.5 mT
Modulation frequency		100 kHz
Magnetic field range		0 - 65 mT
Field sweep		0 - 50 mT
Sweep time		10 s - 2 h
Stability		2.5 µT/min
Homogeneity		10-5/2 cm3
Free gap size (without modulation and tomography coils)		150 mm
Weight		500 kg
Cooling		air, water in the case of 1D to 3D extensions

Extensions for Imaging

Gradient		3 mT/cm