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epr100
X-Band Pulse EPR(ESR) Spectrometer
EPR100
X-Band Pulse EPR(ESR) Spectrometer
EPR100
The CIQTEK EPR100 is a highly versatile X-band pulse electron paramagnetic resonance spectrometer. It features high performance pulse formation and data acquisition through a high precision control and readout system developed by CIQTEK.

Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method to study the structure, dynamics, and spatial distribution of unpaired electronics. It can provide in-situ and non-destructive information on electron spins, orbitals, and nuclei at the microscopic scale. EPR measurements are typically performed in continuous-wave (cw) or in pulsed mode and are widely used in research experiments such as electron spin‐echo detection, ESEEM, 2D-HYSCORE, ELDOR, Pulsed ENDOR and laser triggered experiments.
The CIQTEK EPR100 is a highly versatile X-band pulse electron paramagnetic resonance spectrometer. It features high performance pulse formation and data acquisition through a high precision control and readout system developed by CIQTEK.

Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method to study the structure, dynamics, and spatial distribution of unpaired electronics. It can provide in-situ and non-destructive information on electron spins, orbitals, and nuclei at the microscopic scale. EPR measurements are typically performed in continuous-wave (cw) or in pulse mode and are widely used in research experiments such as electron spin‐echo detection, ESEEM, 2D-HYSCORE, ELDOR, Pulsed ENDOR and laser triggered experiments.

Integrated Functions for General Continuous Wave and Pulse EPR Measurements

Magnetic Field Uniformity Better than 10 ppm and Stability Better than 10 mG/h

Diversified Experimental Scenes to Meet Different Needs (Light, Low Temp, Corner, etc)

Microwave Pulse time Resolution of Up to 50 ps Improves Spectral Line Resolution in Pulse Mode

High-performance Solid-state Power Amplifier: 450 W Output Power

Infinite Number of Pulse Sequencers for Dynamic Multi-pulse Decoupling Techniques

epr100-exp1      epr100-core      epr100-exp2
Software and Affiliates
Computer System: EPR-Pro Software
EPR-Pro is the upper computer operating software of CIQTEK electron spin resonance spectrometer, providing fast experimental operation process and powerful data analysis functions.
epr100-softwareepr100-software
EPR-Pro Features
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Modern Design, Simple Interface, User-friendly

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Continuous Wave and Pulse EPR Modes

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Automated Parameters Tuning and Optimization Functions

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Powerful Data Analysis Capabilities

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Automatic Generation of Experiment Reports

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Standalone Data Analysis Software that can be used Offline

Accessories
epr-accepr-acc        
Technical Details

Parameters

Values


Continuous Wave Functions

The Same as EPR200-PLUS Details


Pulse Channels

Number of channels: 8

Channel 1: 0° Phase Pulse (+X)

Channel 2: 90° Phase Pulse (+Y)

Channel 3: 180° Phase Pulse (-X)

Channel 4: 270° Phase Pulse (-Y)

Channel 5: Solid state power amplifier gate signal

Channel 6: Receiver low-noise protection switch control signal

Channel 7: Used for ELDOR experiment

Channel 8: For Extension


Microwave Pulse Time Resolution

50 ps


Solid-State Power Amplifier Output Power

450 W Max


Microwave Pulse Phase Stability

Less than 3° in 1 ms


Maximum Microwave Pulse Length

3 ms


Minimum π / 2 Pulse Length

8 ns


Arbitrary Waveform Pulse Modulation

Sampling rate 1 GSPS


epr100-skr
Applications
EPR in Free Radical Research

Free radicals refer to atoms or groups with unpaired electrons formed by the homogeneous splitting of covalent bonds when molecules of a compound under external conditions such as light and heat. Free radicals are very active and closely related to the aging of the human body and diseases.

Electron paramagnetic resonance (EPR) technology is currently the only method available for the direct detection of free radicals.

Structure of Benzene Radical and Its EPR Spectrum

Structure of Benzene Radical and Its EPR Spectrum

EPR in Materials Science
As a new type of nanomagnetic material, metallofullerene nanocomposites with paramagnetic properties are of great value in magnetic resonance imaging, single-molecule magnet research, spin quantum information research, etc.
The electron spin distribution in metallofullerenes can be obtained by EPR technology, and then further study the hyperfine interactions between spins and metal magnetic nucleus, so as to detect the spin and magnetic changes of fullerenes in different environments.
Reference: Nanoscale 2018, 10, 3291
EPR in Quantum Computing
Solid-state electron spin is one of the qubits studied in quantum computing. Pulse paramagnetic resonance technology can realize the preparation, manipulation, and readout of the electronic spin quantum states, thereby performing quantum computing research on important issues.
Using optimal dynamical decoupling to increase electron spin decoherence time in solid-state systems, the scientists increased the electron spin decoherence time in gamma-irradiated single crystals of malonic acid from 0.04 µs to 30 µs, showing the importance of dynamic decoupling.
References: Nature 461, 1265-1268 (29 October 2009)
EPR in Structural Biology
Double electron electron resonance (DEER) is one of the important techniques for biological structure analysis. The use of electron spin labels to specifically label biomolecules such as proteins and RNA and the use of electron paramagnetic resonance to measure the strength of electron-electron interactions can provide information about the distance between labeling sites for biological structural analysis. It can be used to measure distances between 1.7 and 8 nm by non-destructive testing methods.
Referance: Biophysical Journal 113, 371‒380, July 25, 2017
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