RF Electron Paramagnetic Resonance Instrument

Instrument Components:

The instrument consists of an electron paramagnetic resonance (EPR) instrument, a three-dimensional coil, and a limited oscillator.

Features

The overall structure is simple and lightweight;

The three-dimensional coil has a unique magnetic field structure, allowing for easy magnetic field direction change;

The probe is compact, allowing for convenient sample exchange.

Experimental Details

1. Learn the basic principles, experimental phenomena, and experimental methods of electron spin resonance (ESR).
2. Measure the g-factor and resonance linewidth of electrons in a DPPH sample.

Objectives

1. Understand the principles of paramagnetic resonance.
2. Observe the paramagnetic resonance phenomenon of DPPH free radicals.
3. Determine the g-factor of DPPH and compare it with the theoretical value. Learn how to measure the resonance linewidth ΔB and relaxation time T2.

Specifications of RF Electron Paramagnetic Resonance Experimenter

3D magnetic field coil: (0-20Gs) continuously adjustable
3D sweep coil: (0-2Gs) continuously adjustable
Excitation constant current source: (0-1200mA) continuously adjustable
Sweep power supply: 50Hz (0-900mA) continuously adjustable
Margin oscillator: (20-30MHz) continuously adjustable