ESR Module

ESR Module

Description
Experiments

Applications and Experiments:_..

The ESR module can be used to study the following topics and perform the following experiments:_..
•	Resonance absorption of a high-frequency resonant circuit
•	Dependence of the resonance frequency on the magnetic field
•	Electron spin and magnetic moment of the electron
•	Determination of the electron g-factor; Landé g-factor of the free electron

Product Information:_..

The ESR module is intended for use with the ESR-NMR control unit (item nos. 1022700 and 1022702) for the investigation of electron spin resonance in 2,2-diphenyl-1-picrylhydrazyl (DPPH).

Observation of the resonances is carried out by radio-frequency-induced transitions while varying the external magnetic field. The resonance absorption curves can be displayed using a simple two-channel oscilloscope (oscilloscope not included in the scope of delivery).
The set consists of the factory-calibrated module with the pair of coils, the ESR probe with an RF Coil, a DPPH sample, and an empty reference sample.
A test report is supplied with every ESR module.

Specifications:_..

Field coils:	Turns:	500 each
	Magnetic flux density:	0 − 3.37 mT
	Dimensions:	20 mm x 74 mm Ø approx. each
	Weight:	0.2 kg approx. each

Measuring head:	Connection:	four-pole LEMO socket

General:	Frequency range:	approx. 38 − 75 MHz
	Sample diameter:	4.5 mm
	Dimensions:	175 mm x 125mm x 125 mm approx.
	Weight:	2.25 kg approx.

Scope of Delivery:_..

1	ESR module with mounted field coils
1	ESR probe
1	DPPH sample
1	Reference sample
1	Test report

Additionally required:_..

1	ESR-NMR control unit (230 V, 50/60 Hz) (item no.: 1022700)
or
1	ESR-NMR control unit (115 V, 50/60 Hz) (item no.: 1022702)

1	Digital oscilloscope 2 x 30 MHz (item no.: 1020910)
or
1	PC oscilloscope 2 x 25 MHz (item no.: 1020857)

2	RF cable, 1 m (item no.: 1002746)