Nuclear Fusion

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Nuclear Fusion. Class : Nuclear Physics 1 2005. 12. 7 K.-U.Choi. Outline. Introduction Theoretical Background Instruments, Experiments Data review & Present Status Summary. Introduction. Nuclear Binding Energy. Plasma. ; Freely moving charged particle : ions, electrons. Solid. - PowerPoint PPT Presentation

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Nuclear FusionNuclear Fusion

Class : Nuclear Physics 1 Class : Nuclear Physics 1 2005. 12. 72005. 12. 7

K.-U.ChoiK.-U.Choi

22

OutlineOutline

IntroductionIntroduction Theoretical Background Theoretical Background Instruments, ExperimentsInstruments, Experiments Data review & Present StatusData review & Present Status SummarySummary

33

IntroductionIntroduction

44

Nuclear Binding EnergyNuclear Binding Energy

55

PlasmaPlasma

Solid Liquid PlasmaGas

; Freely moving charged particle : ions, electrons.

66

Conditions for FusionConditions for Fusion1) Low Temperature

2) High Temperature

Heat

Garbage

Coloumb Foce !!

77

Conditions for FusionConditions for Fusion1) Lawson’s criterion for Fusion

( Deuterium-Tritium fusion)

2) Creating the conditions for Fusion

n : ion density, τ : confinement time

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Inertial Confinement FusionInertial Confinement Fusion

This is why we call this as “Inertial Confinement Fusion”

Δt ~ 10^-11 to 10^-9 s

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Heating

(Neutron beam)

hydrogen gas

Magnetic Confinement FusionMagnetic Confinement Fusion

1010

hydrogen plasma

heating

1111

hydrogen plasma

hot

HIGH heating

1212

problem:wall contact!

HIGH heating

hydrogen plasma

hot

1313

HIGH heating

avoid wall contact with magnetic field

hydrogen plasma

hot

1414

HIGH heating

avoid wall contact with magnetic field

hydrogen plasma

hot

1515

problem:end losses

HIGH heating

hydrogen plasma

hot

1616

end losses avoid : torus !

Magnetic Confinement Simulation

1717

ITER ( International Thermonuclear ITER ( International Thermonuclear Experimental Reactor )Experimental Reactor )

Launcher

Magnets

Vacuum VesselThermal Shield

1818

1919

2020

Data review Data review

1970 1975 1980 1985 1990 1995 2000 2005

10-6

10-4

10-2

100

102

104

106

108

1010

fus

ion

po

wer

[W

att

]

2010 2015

ITERJET

D-TD-D

Power station

2121

Summary & OutlookSummary & Outlook

We can expect Nuclear fusion We can expect Nuclear fusion ReactorReactor

We can research Ion Beam nuclear We can research Ion Beam nuclear fusion reactorfusion reactor

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