EPR - ELEXSY

ELEXSYS - II E500 the CW - EPR

The CW - the ultimate sensitivity of EPR - SuperX: ELEXSYS - II provides excellent sensitivity for the CW - EPR

ELEXSYS - E500 II

The x-band ELEXSYS - II instrument equipped with SuperX function and a new signal processing unit (SPU).SuperX consists of a selection of high power, low noise of double gun source and high Q cavity.

The combination of these devices, the sensitivity of the CW - EPR of x-band raised an order of magnitude.We stipulated E500 for traditional measuring sensitivity and the CW - EPR spectrometer weak spacing signal-to-noise ratio of 3000:1.

Signal processing unit (SPU) is a highly integrated equipment, can satisfy the modern the CW - all acquisition mode of EPR.A total of eight signal input channel and various trigger mode, even if does not belong to standard in the field of EPR experiments can also be mastered.

Shown here is an example of SuperX system to improve sensitivity, is in the standard cavity (left) and use SuperX system (right) from the Cu squared ⁺ histidine gain spectra.In the standard is in the cavity of a faint and the spectrum of information, in the new SuperX system is a clear and good spectrum.

The technical details

The signal processing unit (SPU) function

Digital lock, 5 harmonics can be detected simultaneously
At the same time detect 0 degrees and 90 degrees phase modulation
Modulation frequency up to 1 MHz
Used in the absorption and dispersion measurement of double input channels at the same time
27 of amplitude dynamic range
Used for modulation and direct detection of fast scanning ramp generator and detection system
With 14 injective amplitude and 8 ns time resolution of the transient recorder
Predefined and user input channel
The coupling of ac and dc input channel
Internal and external trigger
A 256, 000 point on the axis and the timeline
The transient time 65 536 points on the axis

E 500 highlights and standard features

The sensitivity of SuperX microwave units, for the world record
Ultra high resolution field controller
Digital rapid field scanning module
Fixed time and analytical experiment
Multipurpose signal processing unit (SPU)
Reference to rotate the count
Xepr package
Professional instrument

The computer system

The front end of the run Xepr software package based on LINUX workstation software acquisition server is handling all real-time incident.

advantage

The digital resolution: 32 bits

Magnetic field uniformity: 10 mG @ 10 10 (X) (Z) х х (Y) 22 mm magnets (10 inches) or 12 mG @ 10 10 (X) (Z) х х 22 mm (9.5 inch) magnet (Y)

Maximum field strength: 14500 G (10 inches) magnets or 13000 G (9.5 inches) magnet

Absolute minimum detectable spin number (weak asphalt as the prototype) : 1.0 x 10 e9 spin number/G line width

Signal-to-noise ratio (weak asphalt as the prototype) : 3000-1

Preamplifier signal frequency range: 30 Hz to 6.5 MHz

A magnetic field the largest scope: scan - 18 kG to + 18 kG

Scanning speed: 320 microseconds / / points and five seconds

Maximum amplitude modulation: 20 G

Modulation frequency: 80 Hz to 200 kHz

Test mode: sweep phase lock, fast and transient model

Phase lock mode and harmonic detection: up to 5 order

Quick scan mode of scan rate: 200 Hz (5 ms scan 200 G)

Transient mode of sampling rate: 125 MHz

The transient mode maximum sampling points: 16000 points

application

LabScape

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LabScape Maintenance agreement (Maintenance Agreements), the optional services (On - site On - Demand) and laboratory improvement plan (Enhance Your Lab) modern Lab is dedicated to provide you with a new method of Maintenance and service.