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TU Darmstadt Inertial Confinement Fusion Dieter H.H. Hoffmann TU / GSI Darmstadt 300. WE-Heraeus Seminar ENERGIEFORSCHUNG 26-28 Mai 2003.

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Presentation on theme: "TU Darmstadt Inertial Confinement Fusion Dieter H.H. Hoffmann TU / GSI Darmstadt 300. WE-Heraeus Seminar ENERGIEFORSCHUNG 26-28 Mai 2003."— Presentation transcript:

1 TU Darmstadt Inertial Confinement Fusion Dieter H.H. Hoffmann TU / GSI Darmstadt 300. WE-Heraeus Seminar ENERGIEFORSCHUNG Mai 2003

2 TU Darmstadt 2 3 confinement concepts

3 TU Darmstadt 3 Fusion of Hydrogen Isotopes Deuterium und Tritium

4 TU Darmstadt 4 Microballoon Fusion-target

5 TU Darmstadt 5 Principle of inertial fusion

6 TU Darmstadt 6

7 7 n: Particle number density [cm -3 ] r: density [g/cm 3 ] : Confinement time [s] T: Temperature [keV] R: compressed fuel radius Lawson Criterion n s/cm 3 R>1g/cm 2 Figure of merit: n T

8 TU Darmstadt 8

9 9 Heavy Ion Target, schematically

10 TU Darmstadt 10 Heavy ion target

11 TU Darmstadt 11 Indirect drive heavy ion target J. Meyer-ter-Vehn

12 TU Darmstadt 12 Indirect drive heavy ion target J. Meyer-ter-Vehn

13 TU Darmstadt 13 Symmetry by radiation shields J. Maruhn, Frankfurt

14 TU Darmstadt 14 National Ignition Facility, LLNL

15 TU Darmstadt 15

16 TU Darmstadt 16 Why heavy ions: Comparison of concepts

17 TU Darmstadt 17 Schematic Fusion Power Plant based on Heavy Ion Beams

18 TU Darmstadt 18 Anforderungen an einen Beschleuniger für die Trägheitsfusion Energie pro Puls: E 5 – 10 MJ Pulslänge:t 5-10 ns Pulsleistung:P W Teilchenzahl pro Puls bei E0 = 10 GeV Und Au, Pb, Bi Projektilen: N 10 15

19 TU Darmstadt 19 HIDIF study: Heavy Ion Driverfor Inertial Fusion

20 TU Darmstadt 20 HIDIF

21 TU Darmstadt 21 GSI - Darmstadt

22 TU Darmstadt 22 Present and Future Facilities at GSI

23 TU Darmstadt 23 Energy loss on free and bound electrons

24 TU Darmstadt 24 Conversion of von Laserlight into soft X-rays for Interaction experiments with heavy ions Conversion of von Laserlight into soft X-rays for Interaction experiments with heavy ions High homogeneity dense plasmas M. Roth et al.

25 TU Darmstadt 25 Heavy ion beam & target beam target volume heatinggasdynamic motion

26 TU Darmstadt 26 Final Focus

27 TU Darmstadt Plasma Linse (U. Neuner et al) focal beam spots linear B-field nonlinear B-field

28 TU Darmstadt 28 Nd:Glas Laser Double-pass and Booster Geometry, 31.5cm Beamdiameter: 4-6 kJ Puls 10 ns 500 J Puls 0.5 ps Petawatt High Energy Laser for Heavy Ion Experiments Introduction

29 TU Darmstadt 29 Intense Laser Beam Matter Interaction Laser Beam High Energy Ions in Laser Plasma

30 TU Darmstadt 30

31 TU Darmstadt 31

32 TU Darmstadt 32 Target Chamber 11.5 MJ stored energy 19 MA peak load current 40 TW electrical power to load TW x-ray power MJ x-ray energy Pulsed-power accelerators with z-pinch loads provide efficient time compression and power amplification Z

33 TU Darmstadt 33 Two complementary approaches to z-pinch-driven capsule implosions are being studied Two 60 MA pinches 380 MJ yield 54 MA pinch 530 MJ yield hohlraum energetics radiation symmetry pulseshaping preheat capsule implosions Key issues Both concepts use hohlraum coupling, symmetry, and capsule scaling physics developed in the indirect-drive laser and ion beam programs Double-ended hohlraum Dynamic hohlraum

34 Recent Progress in ICF Capsule Experiments at Sandia National Laboratories International Workshop on Physics of High Energy Density in Matter 2003 Hirschegg, Austria Tom Mehlhorn, Manager Target & Z-pinch Theory Dept Sandia National Laboratories Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL84000.


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