Plasma science and applications 2013
-
Upload
sergey-korenev -
Category
Technology
-
view
2.230 -
download
0
Transcript of Plasma science and applications 2013
![Page 1: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/1.jpg)
Plasma Physics:
Fundamentals
and Applications
Dr. Sergey Korenev
1
![Page 2: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/2.jpg)
• Introduction to Plasma Physics.
• Fundamental aspects of Plasma Physics.
• Methods and equipment for plasma forming.
• Applications of atmospheric plasma.
• Applications of vacuum plasma.
• Conclusion.
Content
2
![Page 3: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/3.jpg)
3
![Page 4: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/4.jpg)
Examples
4
![Page 5: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/5.jpg)
1. Nature of plasma.
2. Fundamental properties.
3. Types of plasma.
Fundamental questions
5
![Page 6: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/6.jpg)
6
![Page 7: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/7.jpg)
Plasma is 4th state of matter and
consists from mix of ions,
electrons, atoms, molecules.
Plasma Components
7
![Page 8: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/8.jpg)
1. Ionized gas. More understanding.
2. Ionized solid state (Example: ionized
semiconductors ( Fast ionized dinistors)).
3. Ionized liquid (Example: breakdown of water or
oil).
4. Dust plasma.
5. Cluster plasma (Example: evaporated plasma in
electron source).
Types of Plasma
8
![Page 9: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/9.jpg)
1. Density Ne – number of electrons in volume, 1/cm3.
2. Temperature T, [eV]. 1 eV = 11606 K ~ 104K.
eU[J] eU[eV] kT[J] T[eV]
3. Langmuir frequency- plasma frequency:
Main parameters of plasma
kTmv
Ue 2
3
2
2
9
![Page 10: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/10.jpg)
1. Methods and devices for forming of
plasma.
2. Applications of plasma in science,
technology and industry.
Main directions
10
![Page 11: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/11.jpg)
It is very complicated area:
1. Fundamental knowledge and
understanding of plasma physics.
2. Knowledge and experience in electrical
engineering.
Methods and devices for forming of plasma
11
![Page 12: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/12.jpg)
1. Forming of volume plasma. 2. Forming of large cross section plasma
Main tasks
12
![Page 13: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/13.jpg)
1. Passive generation of plasma: Thermal ionization and chemical processes. 2. Active generation of plasma: Ionization of atoms & molecules by external active energy source.
Passive and active generation of plasma
13
![Page 14: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/14.jpg)
General structure of active
plasma source
14
![Page 15: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/15.jpg)
Gas plasma
Ionization
Excitation
Dissociation
Electrical field
Electrons
External particles,
protons, muons,
ions, X-rays, UV,
Laser
GAS PLASMA
15
![Page 16: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/16.jpg)
Atmosphere plasma – generation of plasma for pressure 760 Torr.
Hard conditions: variation of temperature, humanity.
The types of plasma:
1. Pulsed plasma.
2. DC
3. AC, RF MW plasma
Atmosphere plasma
16
![Page 17: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/17.jpg)
Atmosphere plasma
1. Corona discharge.
2. Barrier Dielectric Discharge
3. Arc.
4. Pulsed discharge.
5. Gliding discharge.
17
![Page 18: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/18.jpg)
C L
SWITCHES
CHARGE POWER SUPPLY
PLASMA
Types of pulsed plasma
generators
HIGH VOLTAGE POWER
SUPPLY
SWITCH
HVD
CURRENT TRANSFORMER
C
R
PLATE ELECTRODE
PIN ELECTRODE
Rcur
SCOPE
C L
SWITCH
CHARGE POWER SUPPLY
METAL PLATEDIELECTRIC
METAL ELECTRODE
METAL GRID
18
![Page 19: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/19.jpg)
Atmosphere pressure
plasma generator
19
![Page 20: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/20.jpg)
1. Nanosecond generator with high repetition. 2. Picosecond generators with high repetition..
Pulsed High Voltage
Generators
20
![Page 21: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/21.jpg)
1. Induction energy storage. 2. Capacitor energy storage. 3. Combined capacitor-induction energy storages.
Pulsed High Voltage
Generators
21
![Page 22: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/22.jpg)
1. Novel switches based on open semiconductors. 2. Hydrogen Thyrotrons.
Pulsed High Voltage Generators
22
![Page 23: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/23.jpg)
Main reason of increasing pressure is increasing of electrical insulation.
Gas sparks for high voltage and pulsed power equipment.
Different gases: N2, SF6, N2+CO.
High Pressure gas plasma
23
![Page 24: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/24.jpg)
Ionization gas by charged particles
is effective method for generation
of volume plasma.
Ionization of gas by
charged particles
24
![Page 25: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/25.jpg)
1. Forming of plasma for glow discharge .
2. Forming of clusters high energy plasma
for technical vacuum.
3. Forming of magnetron discharge.
Vacuum plasma
25
![Page 26: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/26.jpg)
Applications of atmospheric
and vacuum plasma
Applications of plasma
in Industry
26
![Page 27: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/27.jpg)
Atmospheric plasma
Pressurized
plasma
Large cross
sectionState between
liquid and gas
Materials
science &
technology
Plasma
chemistry
Pulsed power
technologies
Positive Problem
High voltage
engineering
Instrumentation
& diagnostics
Environmental
applications
27
![Page 28: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/28.jpg)
Vacuum plasma
Vacuum plasmaLarge cross
section
High purity
matter
Materials
science &
technology
New state
of matter
Generation
of beams
Microwave
and pulsed
power
technologies
Positive Problem
Clusters and
fractal
technologies
Instrumentation
& diagnostics
28
![Page 29: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/29.jpg)
The plasma physics is
interesting and opened field of
Physics for new discoveries.
.
Conclusion
29
![Page 30: Plasma science and applications 2013](https://reader033.fdocuments.in/reader033/viewer/2022052411/5567eed7d8b42aaf768b4730/html5/thumbnails/30.jpg)
30