PowerPoint-Pr

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GSI Plasma Physics
Status Report 2005/2006
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Experimental areas of Plasma Physics
HHT High Energy Density Warm Dense Matter
Z 6 Beam-Plasma Inter-
action
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Z6 Beam Plasma Interaction heavy ion beam
10 MeV/u, low power 38/108 MHzlaser
beamnhelix 120 J _at_ 14 ns 5 J _at_ 0,5
ns PHELIX 1 kJ _at_ 0.5-10 ns
HHT High Energy Density Warm Dense
Matterheavy ion beam 200-500 MeV/u, 4109 U
ionsin 120 ns pulse, kJ/g
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Initiated by V.E. Fortov and B.Yu. Sharkov
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Projectile and Target Radiation
spatially resolved measurements of the K-shell
projectile and target radiation along the ion
beam trajectory.
solid, aerogel, gas
O. Rosmej S. Korostiy
Information on the projectile ion charge and
velocity dynamics directly from the interaction
region.
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O. Rosmej S. Korostiy
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Plasma diagnostic setup
ion beam
M. Roth, A. Blazevic, G. Schaumann et al.
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ion beam diagnostic stop detector
former MCP detector (37MHz)
new diamond detector (108MHz)
15 pnA / 300µm aperture
300 pnA / 1mm aperture
signal V
signal V
time ns
time ns
improvements
segmented detector energy loss charge state
distribution simoultanioulsly
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HD simulation - indirect heating
input parameters E laser beam 1kJ, E x-Ray
0.35kJ, ? pulse 1ns
t 4 ns
t 7 ns
V. Vatulin, O. Vinokurov VNIIEF, Sarov, Russia
ISTC 2264
X-Ray Thomson scattering with nhelix/Phelix as
driver source (ns-fs) Collaboration with M. Zepf,
Belfast / accepted proposal PP-P3 and S. Glenzer
(LLNL)
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Z6 Summary
Interaction experiments Projectile and target
radiation Energy Loss experiments directly
driven targets and Hohlraumtargets (x-ray
spectroscopic diagnostics), explosively driven
targetscryogenic target development Generation
of Laser accelerated particle beams for advanced
ion sources (VIPBUL)
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Experimental Area
HHT Cave
GSI-Darmstadt SIS-18
-Temperatures up to 1eV -kbar pressure range
-Solid state density
Uranium Beam, Charge state (74) Intensity
(1-4.2)x109 Energy 350 MeV/u (85GeV) Duration
120 ns Focal spot 150-1500 mm Target 100-500
mm
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Target design for the HIHEX Experiments
Heavy Ion Heating and Expansion
Target Implemenation
Target design
Brass container
4-axis target manipulator and target shelfs
Sapphire
Target foil
Tungstendiaphragm
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HHT Experimental Setup
Xe Flash/Laser
Fast Current Transformers (FCT)
Fiber Lines
Ion Beam
HHT Cave
Fast Gated CCD (DICAM)
Light Collection System
Sepctral analyzer
HHT Measuring room
Sample
Interferometer (VISAR)
Streak Camera
Fast Gated CCD (DICAM)
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Light Collection System
3-axis optics positioner
Fiber Array
2 x Mirror
Target
100m Fiber lines, d400mm
-3 motorized translation stages -1 mm positioning
accuracy -Stable and compact construction for
precise optics positioning
-2 x off-axis 90degree parabolic mirrors (f
150mm, d70, silver coated) -11
imaging -numerical aperture f/2 -no chromatic
abberations -50mm resolution -100 m multimode,
VIS-NIR fiber, d400mm
Spectral Analyzer
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Spectral Analyzer
-12 channels (550- 1550nm) -Interference filters
as filters and mirrors -No beam splitting high
efficiency/sensetivity
-1 ns temporal resolution -Absolutely
callibrated -Flexible design
To digitizer
12 x (amplifiersphotodiodes)
1500nm
Leg 1
1200nm
1400nm
700 nm
900nm
600nm
12 x interference filters
Fiber lines from target
550nm
900nm
750nm
1300nm
1100nm
Leg 2
1550nm
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Streak Spectrograph
450nm
750nm
wl
0ms
Time
Photocathode
3ms
Streak Camera Unit
Imaging Spectrograph
Shot 57(tungsten)
-Ion-etched and holographic grating -Continous
spectra from 250 -950 nm -Numerical apperture
f/2 -High temporal resolution -Fiber input
Streak Spectrometer
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Experimental recordTungsten
Pb, Fe, Sn, W, Ta, Cu, UO2, Al, Al2O3
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Side-Camera diagnostic
Emission of Ar gas
-Ion beam profile in gases -Precise positiononig
of sample -Snapshot (self emission)
Shot 57(tungsten)before
Ion Beam
Shot 57(tungsten)during
Fast gated CCD (DICAM PRO)
Target
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Beam Profile Measurements
P. Forck F. Becker Beam Diagnostik Group
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P. Forck F. Becker Beam. Diagn.

• Image from a 1.5 µs fast extraction of 2x109 Xe
  48 at 200 MeV/u and the projected horizontal
  profile compared to a SEM-Grid. The BIF data were
  recorded at 1x10-3 mbar and averaged over 20
  shots.

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• massive beam loss problems at SIS 18

P. Spiller C. Omet Acc. Dept

• average charge state (U28) equilibr. charge
  state 59
• way below space charge limit
• charge change(U28 ? U29)
• Ion induced desorption

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loss processes
Dipol
P. Spiller C. Omet Acc. Dept
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Kollimatorkonzept
Halterahmen
Absorber-Keil
Manipulator
Umlaufender Ionenstrahl
P. Spiller C. Omet Acc. Dept
NEG-beschichtete Sekundärkammer
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Layout of HEDgeHOB cave at FAIR (Jan. 2006)
HIHEXbeam line
SIS-18 diagnosticbeam line
LAPLAS/WDMbeam line
FFS
HIHEX targetstation
wobbler
LAPLAS/WDM target station
ion radiographysetup
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P6.16.3 Ion optical design of the HIHEX beam
linestrong focusing, high-order corrections and
shaping
Layout of the HIHEX beam line
Beam shaping/correction systemusing non-linear
ion optical elements
Gaussian
parabolic
uniform
Focusing capabilities 0.85mm focal spot
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P6.16.2 Ion optical design of the LAPLAS/WDM
beam line symmetry, focusing and wobbler
Layout of the LAPLAS/WDM beam line
Design of rf beam deflector (wobbler)

Transverse beam intensity distribution in the
focal spot
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Costs estimates for the HEDgeHOB installation