First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Science
PHYSICS
Course unit
PHYSICS OF NUCLEAR FUSION AND PLASMA APPLICATIONS
SCP7081798, A.A. 2018/19

Information concerning the students who enrolled in A.Y. 2017/18

Information on the course unit
Degree course Second cycle degree in
PHYSICS
SC2382, Degree course structure A.Y. 2017/18, A.Y. 2018/19
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Degree course track PHYSICS OF MATTER [002PD]
Number of ECTS credits allocated 6.0
Type of assessment Mark
Course unit English denomination PHYSICS OF NUCLEAR FUSION AND PLASMA APPLICATIONS
Website of the academic structure http://physics.scienze.unipd.it/2018/laurea_magistrale
Department of reference Department of Physics and Astronomy
Mandatory attendance No
Language of instruction English
Branch PADOVA
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Lecturers
Teacher in charge EMILIO MARTINES

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Educational activities in elective or integrative disciplines FIS/03 Material Physics 6.0

Course unit organization
Period First semester
Year 2nd Year
Teaching method frontal

Type of hours Credits Teaching
hours
Hours of
Individual study
Shifts
Lecture 6.0 48 102.0 No turn

Calendar
Start of activities 01/10/2018
End of activities 18/01/2019

Examination board
Examination board not defined

Syllabus
Prerequisites: Knowledge of electromagnetism principles. A knowledge of the different plasma descriptions (kinetic, two-fluids, magnetohydrodynamics) is useful but not required, since essential notions will be provided during the course.
Target skills and knowledge: The first part of the course wants to give an overview of the issues regarding the possible use of controlled thermonuclear fusion as an energy source. The treatment will be focused on the "magnetic confinement" method, which is the one used in the framework of the European Fusion Programme. In the second part some notions on low-temperature plasmas used in industrial applications will be provided, and some of these applications will be described.
Examination methods: Oral examination
Course unit contents: First part: Nuclear fusion: main processes, cross sections, reactivity. Energy balance of a fusion reactor, break-even, ignition. Magnetic confinement and inertial confinement. Toroidal configurations for magnetic confinement. The tokamak configuration. Conceptual scheme of the reactor. MHD equilibria in cylindrical geometry, z-pinch, screw-pinch. MHD equilibria in toroidal geometry, flux functions, Grad-Shafranov equation. Safety factor, toroidal and poloidal beta. Tokamak operational limits: Hugill diagram, Greenwald limit, beta limit. Scaling laws for confinement time, L-mode and H-mode. Plasma heating: ohmic, with neutral beams, with radiofrequency. Outer region of the plasma, concepts of limiter and divertor. Formal analogy between magnetic field line trajectories and orbits of a Hamiltonian system. Alternative confinement schemes: stellarator and RFP. Status of fusion research: the ITER project. Safety and environmental impact of the fusion reactor.
Second part: Introduction to plasma applications. Methods of plasma formation. Planar diode model, Child-Langmuir law. Debye sheath, Bohm criterion, floating potential. Langmuir probe and its use to measure plasma properties. Double and triple probes. Radiofrequency discharges, capacitive and inductive coupling. Atmospheric pressure plasmas. Applications: "plasma medicine" applications, plasma propulsion for space applications.
Textbooks (and optional supplementary readings)