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CALA and Garching plans
S Karsch
Max-Planck-Institut für Quantenoptik
Ludwig-Maximilians-Universität München
(Germany)
EuroNNAc Workshop, CERN, Geneva, May 3-6, 2011
Montag, 2. Mai 2011
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ALA
MAP -‐ Munich Centre for Advanced
Photonics
Munich Center forIntegrated ProteinScience (CIPSM)
Munich Centre for Advanced
Photonics (MAP)
Nanosystems InitiativeMunich (NIM)
Origin and Structure ofthe Universe
Cognition for TechnicalSystems (CoTeSys)
Munich Research Network
Montag, 2. Mai 2011
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What is CALA?
TUM Maschinenwesen
TUM Physik
Max-Planck-Inst. f. Quantenoptik (MPQ)
FRM II
TUM Informatik
LMU Physik TUM Chemie
CALA
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ALAStep 1: Pre-CALA until mid 2011
Pre-CALA until mid 2011
Pre-CALA• 500-m² laser-/experimental hall• Transfer of the
MPQ-high-intensity laser
ATLAS-100 and its upgrade to 300TW
cost: 5 M€financed by LMU and MAP
Pre-CALA allows the continuation and
expansion of MAP-activities until 2014
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ALAStep 2: CALA
Pre-CALA until mid 2011
CALA until 2014
Forschungsbauantrag CALA• 1600 m² experimental/laser hall • 500
m² office- and 600 m² laboratory
space
total cost: ca. 63 Mio €Funded by Land Bayern and Germany
CALA as a whole
2100 m² laser- and experimental area +
500 m² offices+
600 m² support laboratories
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ALAUltimate goal: Improve and combine both diagnostics and
therapy
Conventional CT
Heart
LungPhase-contrast CT
Diagnostics: Phase-contrast imaging dramatically improves
visibility of structures (F. Pfeiffer et al.)
Therapy: Ion therapy promises higher irradiation accuracy with
lower dose to healthy tissue (Molls et al.)
Proton therapy
Photon therapy
High-quality laser-driven beams may become an attractive
alternative for large-scale
conventional facilities
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AAC 2010 Karsch
primary sources
synchronized femto-‐ and a=osecond
secondary sources
bio-‐medical applica@ons
synchr.
ATLAS-‐30001 Hz Ti:Sa laser
60 J, 20 fs800 nm3000 TW
BRIXThomson source1011ph/s20-‐35 keV
Tumour therapy with laser-‐accelerated
par@cles
Ultrafast @me-‐resolved radia@on
biology1-‐25 keV
brilliant X-‐ray imaging70-‐200 keV
electrons:50-‐300 MeV10-‐100 pC< 10
fs
ΔE/E < 5%
electrons:0.5-‐5 GeV
100 pC – 1(10) nC< 10
fs
ΔE/E 0.1-‐1%
ions:250 MeV protons
>400 MeV /amu C6+
PFS-‐prokHz OPCPA0.5J, 5fs
700-‐1400 nm100 TW
LIONLaser-‐driven
ions
ETTFGeV, high charge beams
LUX1-‐25 keV Undulator X-‐rays
HHG1 keV
a=osecond X-‐rays
SPECTRE> 50 keV Thomson source
LXL: free electron laser
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ALAALA
X-rays: Description of beamlines
Name Applica@on electron energy
photon energy
photonnumber
SPECTRESource for Powerful, Energe@c,
Compact Thomson Radia@on Experiments
biomedical imaging with phase contrast
method 50-‐100 MeV > 70 keV 1010
ph/s @ 1 kHz
ETTFElectron and Thomson Test
Facility
development of electron accelera@on:
basic research for LUX and LXL,
high energy Thomson sca=ering
1-‐5 GeV > 1 MeV 106-‐107 ph in
5fs
LUXLaser-‐driven Undulator X-‐ray source
ion pump / X-‐ray probe:
preliminary studies for ultrafast
radia@on biologyions from “mini-‐LION”
0.5-‐5 GeV < 25 keV 108 ph in
~5 fs
LXLLaboratory-‐scale X-‐ray free electron
Laser
ion pump / X-‐ray probe for
ultrafast radia@on biology
0.5-‐5 GeV ~ 5 keV 1012 ph in
5 fscoherent!
1. magnets2. electrons3. undulator radiation
1. laser field2. electrons3. Thomson radiation
λU ≫ λL
GeV- 70 MeV-electrons electrons
LUX/LXL SPECTRE
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ALAALAElectron acceleration for SPECTRE: 50 – 300 MeV,
1kHzFew-cycle-pulses (8 fs, 50 mJ) drive quasi-monoenergetic
electrons with low background:
Stable 200 MeV electron beams with 40fs, 800 mJ pulses:Beams
with low energy and charge fluctuation are created with every laser
shot:
J. Osterhoff et al, Phys. Rev. Lett. 101, 085002 (2008)
K. Schmid et al, Phys. Rev. Lett. 102, 124801 (2009)
50-250 MeVhigh-quality electrons need a
0.5-1J few-cycle-laser at 1 kHz repetition rate
PFS-pro
ALA
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ALAkHz
amplifier200 mJ
kHz amplifier
1J
kHz amplifier
4x1Jpump laser
pulse generation
OPA amplification
• Upgraded pump laser drives OPA stages at 1 kHz up to the 1
J-level
• remaining last 5 J stage operates at 10 Hz• Pump upgrade uses
disk laser technology
PFS-pro
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ATLAS
Preamp
Stretche
r
Regen
Mul@p
ass 1
Mul@p
ass 2
Mul@p
ass 3
(3x)
Mul@p
ass 4
(2x)
Compressor
5nJ
20fs
70MHz
50µJ
20fs
70MHz
3µJ
300ps
70MHz
2mJ
300ps
10Hz
25mJ
300ps
10Hz
0.5J
300ps
5Hz
1.5J
300ps
5Hz
3J
300ps
5Hz
2J
20fs
5Hz
Minilite
20mJ
Bigsky
40mJ
Surelite
40mJ
Powerlite
800m
J
Powerlite
800m
J
Macho
lite
2J
Macho
lite
2J
Prop
ulse
2J
Prop
ulse
2J
Prop
ulse
2J
Oscillator
Energy (compressed/on target) (J) 2 / 1,6
pulse duration (fs) 25
contrast @ -10 ps (with absorber) 108 (1010)
Strehl ratio 0,7
new cryocooled last amplifier under development (Amplitude)
ensures future upgradeablility
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200MeV
600MeV800MeV
400MeV
Shot #
300pC
200pC
100pC
e-beams from gas cell: 600 MeV, 200 pC:allows LUX experiments
into water window
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injected beams, gas jet: 50 MeV, 100 pC:target parameters for
SPECTRE
a0=2.5, ne= 1.2x1018 cm-3
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Optical to THz CTR spectra of electrons crossing a metal foil
(very preliminary)
Preliminary wide-bandwidth data:
indicate approx. 5 fs duration 4.5 fs gaussian spectrum
at high pressure and/or long gas cell:
oscillations with a period ~16µm
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ALAALAElectron acceleration for LUX and LXL: >> 1
GeVScaling of electron acceleration to higher energies and
charge
(0.5 GeV>5 GeV, 100 pC>1 nC):
• Energy conservation: 100x higher laser energy needed (0.6 J
> 60 J)
• analytical scaling laws have been confirmed experimentally
Boosted-Frame Particle-in-Cell simulations recently have
demonstrated the ability to simulate m-scale laser-wakefield
interactions with multi-PW lasers:
laserelectrons
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ALA
20fs
5Hz
twin
- mul
tipas
s 5
(10x
)
0.5ns
5Hz
90Jmax
260J
8Jmax
0.5ns
5Hz com
pres
sor 60Jmax
3 P
W b
eam
Ti:Sapphire amplifier
pump laser (Nd:YAG 532nm) new components: CALA
new components: pre-CALA
2mJ
0.5ns
10Hz
osci
llato
r
prea
mpl
ifier
(100
0x)
stre
tche
r
rege
n (4
00x)
mul
tipas
s 1
(12x
)
mul
tipas
s 2
(20x
)
mul
tipas
s 3
(3x)
mul
tipas
s 4
(5x)
com
pres
sor
5nJ
20fs
70MHz
5µJ 3µJ 25mJ
20fs
10Hz
0.5J
0.5ns
5Hz
1.5J
0.5ns
5Hz
8J
0.5ns
5Hz
10m
J
30m
J
100m
J
1.6J 4J 6J
varia
ble
beam
dis
tribu
tion
6Jmax
0.5ns
5Hz
0.5ns
5Hz
20fs
5Hz
300
TW b
eam
puls
e cl
eani
ng
12J
8Jmax
Seed from PFS-pro
ATLAS-3000: schematic layout
ELI and its spin-offs started several new enabling technologies
for large-scale Ti:Sa lasers:
Large Ti:Sacrystals:
192 mm dia. Ti:Sa crystal(image courtesy Crystal Systems)
high-power, rep-rated pump lasers
15 J, 1 Hz green pump laser(image courtesy Thales laser)
new large-size, high-efficiency gratings
direct-etched gratings(image courtesy Plymouth grating labs)
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ALAALAbrilliance
[ph/ (sec mm2 mrad2 0.1% BW)]
costs (size)[M€ (meter)]1 10 100 1000
1022
1015
107
1011
undulator
deflecting magnet
rotating anode 100 kW,Bremsstrahlung
CALA: BRIX, laser driven sources
brilliance comparison (© F. Pfeiffer)
CALA: peak brilliance of laser driven sources
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Conclusions
• CALA is going to become the backbone for laser acceleration
research in Munich from 2014/15 onwards
• CALA applications focus on compact accelerators for medical
purposes - but with EuroNNAc, we are keen for more...
• CALA aims at combining medical diagnosis and therapy, and at
developing new imaging/treatment techniques early on
• Key electron parameters for CALA projects have been realized
even with the current laser systems at MPQ
• Access to CALA is possible through collaboration with Munich
groups in the MAP framework
Montag, 2. Mai 2011
