ILEGRE

Summary Outline

1 Central Ignition Scheme

2 Fast Ignition Scheme

3 Beyond Ignition toward Energy Production

� Nat. Ignition Facility almost completed

Gain 10 ignition will take place in 2010.

� Precise shock timing control

� Target Fabrication

Central Ignition Scheme IX-ray driven implosion in the U.S.

Gain 10 or higher is expected at NIF ignition campaign.

J Lindl et al.

POP, 11, 339 (2004)

� Omega 60 beams give good uniformity.

� Target Fabrication

� High areal density (density x compressed core radius = ρR)shot achieved

� Good agreement with 1D hydro simulation

Central Ignition Scheme IILaser driven implosion in the U.S.

Rochester achieved 0.2 g/cm2 areal density with a D2 cryogenic target

Rochester shows an ignition design based on the recent high ρR shot.

� Laser: OMEGA EP & LFEX completed or near-completionSub-ignition exp. will take place soon.

� Target Design

� Relativistic Physics

Fast Ignition Scheme in Japan, U.S., & EU.

LFEX: 10 kJ in Japan

State of art gratings compress laser pulse to 10 psec in Japan.

Target design Schematic view of the cryogenic

DT target with a plastic foam shell and a gas feeder

20 2234

24

26

2237

2239

25

8

2238

2221

Japan(Osaka/NIFS)

“Plasma devices to guide and collimate a high density of MeV elec

R. Kodama et al., Nature (London) 432 (7020), 1005 (2004).

2D LSP simulation of the magnetic

field at the cone-wire interface

Cone-wire plasma expansion 400

picoseconds after the laser interaction

Beam collimation ideas II

J.S.Green et al. - “Surface heating of wire plasmas using

laser-irradiated cone geometries” – Nature Physics 3 853 (2007).

3D simulation of slab confinement

x-y midplane plot of fast electron density

Al-Sn-Al target Pure Al target

Beam collimation ideas IV

“Magnetic

collimation of fast ….”

A Robinson

and M Sherlock,

Phys. Plasmas

14, 083105 (2007).

� FIREX II (Japan)50 kJ/50 kJ Single Shot High Gain

� HiPER(EU)70 kJ/200kJ High GainBridge from physics to engineeringBurst Mode

� LIFE (USA)

� Z pinch (USA)

Beyond Ignition toward Energy Production

Japan project to test high gain with fast ignition

By 2014

EU project to test high gain with fast ignition

By 2020

By 2020

USA By 2020

LIFE Schematic

U.S. proposes to achieve energy production by 2020.

Fast Target Injection Technique @ 12 kHz

Sn Punched Out Target

レーザー

Sn, Sn Cl Mixed Liquid Target

Nozzle

1.4

mm

Sn Liquid Target

Heating Laser

Sn jet

> 1km/s

Laser

Laser

This method is approved by

the project.

Easy Supply

10 W laser test

Low debris

加熱レザー加熱レザー加熱レザー加熱レザー

Rotation Disk

スズジェットスズジェットスズジェットスズジェット

パンチアウトレーザーパンチアウトレーザーパンチアウトレーザーパンチアウトレーザー

Purpose: Extreme Ultraviolet project proved that Sn liquid targets

can be injected and irradaited at 12 kHz.

Summary

1 Central Ignition Scheme

Gain 10 exp. in 2010 in the U.S.

2 Fast Ignition Scheme

Sub-ignition exp. in Japan & U.S. starting soon.

3 Beyond Ignition toward Energy Production

FIREX II(Single Shot High Gain): Japan

HiPER (Burst Mode, High Gain): EU

LIFE (2000-4000 MWth): U.S.A.Z pinch reactor: U.S.A.

Summary 2

The world wide, complimentary effort on inertial fusion energy appears coordinated and healthy.

Many approaches are to be soon demonstrated or to be tested of ignition, high gain and energy production.

The ignition once demonstrated will be a sound mile stone for IFE and can be used as a firm bench mark for coming high gain and energy production.

The laser development and target production proceed to be ready for the coming high repetition era.

Acknowledgement

� Research have been presented from Algeria, Australia, China,India, Italy, Korea, Poland, Spain, UK, U.S.A, Uzbekistan and Japan.

� All participants in the inertial fusion are acknowledged for providing their presentation materials in this 22nd IAEA Fusion Energy Conference.