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Experimentations in plasma physics (8 ECTS)

Aims

Aim is to give students the skills to plan and to implement a suitable diagnostics  to perform basic measurements on laboratory plasmas in the linear, magnetically confined device GyM (IFP-CNR), operating to study plasma turbulence.

Contents

development of an electrostatic probe (Langmuir), measurements of fundamental plasma parameters in the linear device GyM (IFP-CNR).

Detailed program

The course, held at the laboratory of the linear machine GYM at the Institute of Plasma Physics - CNR, Milan, is preceded by a first theoretical part in which are provided the main concepts on laboratory plasmas to be used then during the experimental phase. Hints will be given on wave-plasma interaction at the electron cyclotron frequency, on the use of power microwaves and on the electrostatics probes used to diagnose the plasmas.

In the second part of the course, a practical and experimental activity, the students will design and implement the diagnostic system (electrostatic probes) to measure the spatial trends of the main parameters of GyM plasma (electronic density and temperature, plasma potential, Mach number and possibly fluctuations) in different experimental conditions (neutral gas pressure, magnetic field and RF power) chosen according to the interest of the students and of the experimental program of GyM. Learning the capability of the entire planning, implementation, data acquisition and software processing of the measures is the aim of the course. In the final report the students will be guided in the writing, according to a rigorous scientific language, of what was done during the experimental phase, reporting results and elaborating, if necessary, the interpretative models in GYM's broader scientific objective on the study of plasma fluctuations.

Semester

III° year, Bachelor degree, 2° semester

Institution: 
Università degli Studi di Milano-Bicocca, Italy