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John N. Galayda
DESY Workshop [email protected]
October 8, 20081
LCLSLCLS Commissioning in 2008 Commissioning in 2008J. Galayda, for J. Galayda, for The The LCLSLCLS Construction/Commissioning Team Construction/Commissioning Team
DESYDESY
Oct. 8, 2008Oct. 8, 2008
LCLSLCLS
OverviewOverviewConstruction StatusConstruction StatusCommissioning resultsCommissioning resultsStabilityStabilityDay-to-Day PerformanceDay-to-Day PerformanceShort pulsesShort pulsesPlans for 2009Plans for 2009LCLS InstrumentsLCLS Instruments
John N. Galayda
DESY Workshop [email protected]
October 8, 20082
Linac Coherent Light Source at Linac Coherent Light Source at SLACSLAC
Injector (35Injector (35ºº))at 2-km pointat 2-km point
Existing 1/3 Linac (1 km)Existing 1/3 Linac (1 km)(with modifications)(with modifications)
Far ExperimentFar ExperimentHall (underground)Hall (underground)
Near Experiment Hall Near Experiment Hall (underground)(underground)
New New ee Transfer Line (340 m) Transfer Line (340 m)
X-ray X-ray Transport Transport Line (200 m)Line (200 m)
Undulator (130 m)Undulator (130 m)
X-Ray Transport/Optics/Diagnostics
John N. Galayda
DESY Workshop [email protected]
October 8, 20083
Linac-to-Undulator (227m)
X-rayTransport(200m)
UndulatorHall (175m)Beam Dump (40M)
Front End (29m)
NearExpt’l.Hall
Near Experimental Hall
1.9 Conventional Facilities >84% complete Turner Construction Co. >90% complete
FarExpt’l.
Hall
64.6 m
14 m
John N. Galayda
DESY Workshop [email protected]
October 8, 20084
Far Hall rebar latticeTunnel construction complete 25 April 2008
John N. Galayda
DESY Workshop [email protected]
October 8, 20085
Far Experimental Hall south ribInstalling re-bar in the Far Experimental Hall
Far Experimental Hall Structural Shell
John N. Galayda
DESY Workshop [email protected]
October 8, 20086
LCLSLCLS Injector Injector
100% Complete100% Complete LCLSLCLS Linac Linac
>96% Complete>96% Complete
Commissioning Complete Commissioning Complete
3/20083/2008
Commissioning Complete 9/2007Commissioning Complete 9/2007
Undulator>80% complete
John N. Galayda
DESY Workshop [email protected]
October 8, 20087
dualdualfeedfeed
βr/
mm
-0.008
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
0.008
-180 -120 -60 0 60 120 180
rf phase
cylindrical cavity
racetrack cavity withd=0.124"racetrack cavity withd=0.14"racetrack cavity withd=0.134"β
r/m
m
-0.008
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
0.008
-180 -120 -60 0 60 120 180
rf phase
cylindrical cavity
racetrack cavity withd=0.124"racetrack cavity withd=0.14"racetrack cavity withd=0.134"
βr/
mm
-0.008
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
0.008
-180 -120 -60 0 60 120 180
rf phase
cylindrical cavity
racetrack cavity withd=0.124"racetrack cavity withd=0.14"racetrack cavity withd=0.134"β
r/m
m
-0.008
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
0.008
-180 -120 -60 0 60 120 180
rf phase
cylindrical cavity
racetrack cavity withd=0.124"racetrack cavity withd=0.14"racetrack cavity withd=0.134"
RF Gun Installed in March 2007RF Gun Installed in March 2007
John N. Galayda
DESY Workshop [email protected]
October 8, 20088
Injector Vault (Oct. ’07)Injector Vault (Oct. ’07)
transverse transverse RF deflectorRF deflector
RF gunRF gun
6-135 MeV 6-135 MeV booster linacbooster linac
OTR screens OTR screens & wire-& wire-scannersscanners
John N. Galayda
DESY Workshop [email protected]
October 8, 200810
ANL Work >97% Complete
Quadrupole
Vacuum Chamber
Undulator Segment
RF Cavity BPM
Girder
John N. Galayda
DESY Workshop [email protected]
October 8, 200811
Undulator Hall
First electrons 12/2008Install Undulators 3/2009
John N. Galayda
DESY Workshop [email protected]
October 8, 200812
SolidAttenuator
Gas Attenuator
Slit
Start of Experimental
Hutches
5 mm collimator
Muon Shield
Hard X-Ray Offset mirror
system
PulseEnergyThermal Detector
Gas Detector
Gas Detector
e-
Direct Imager
Hard x-ray Monochromator (K Spectrometer)
Soft X-Ray Offset mirror
system
LLNLLLNL
WBS 1.5 is >80% complete
Front end X-ray optics being assembled
All mirrors delivered; mirror figures meet spec
Most diagnostics under assembly at LLNL
X-Ray Transport/Optics/Diagnostics
John N. Galayda
DESY Workshop [email protected]
October 8, 200813
Measured configuration should give 1012 of photons @ 1.5 Angstrom in 100 fs pulse, the LCLS goal
Will start FEL commissioning in this configuration
John N. Galayda
DESY Workshop [email protected]
October 8, 200815
LCLS-Quality Beam Demonstrated
Electron beam emittance Electron beam emittance measurementsmeasurements9.2 GeV point in linac0.25 nC, 75 fs 0.25 nC, 75 fs
14 GeV e-beam good14 GeV e-beam goodenough forenough for
~11 GW@ 8 keV
John N. Galayda
DESY Workshop [email protected]
October 8, 200816
(3.3 days) May 24, 2008 00:01 to May 27 09:00(3.3 days) May 24, 2008 00:01 to May 27 09:00
weekend weekend run at run at
0.25 nC, 0.25 nC, with no with no tuningtuning
Emittance Stability at End of LinacEmittance Stability at End of Linac
((xxyy))1/21/2 = 1.04 = 1.04 mm
Saturation Saturation at 1.5 at 1.5 ÅÅ in in
100 m 100 m (assuming (assuming BBA, etc)BBA, etc)
John N. Galayda
DESY Workshop [email protected]
October 8, 200817
Normalized phase space centroid jitter Normalized phase space centroid jitter after BC1after BC1 (~4% of rms beam size) (~4% of rms beam size)
D. RatnerD. Ratner
Stability is Stability is not so far not so far from the from the
goal (~10%)goal (~10%)
… … near near end of linacend of linac (10-15% of rms beam size) (10-15% of rms beam size)
RMS RMS AAxNxN = 14% = 14% RMS RMS AAyNyN = 9% = 9%
EE//EE jitter jitter 0.03% 0.03%QQ//QQ jitter jitter 1.5% 1.5%
RMS RMS AAxNxN = 3.9% = 3.9% RMS RMS AAyNyN = 3.4% = 3.4%
QQ = 0.25 nC = 0.25 nC
1-1- beam beam sizesize
John N. Galayda
DESY Workshop [email protected]
October 8, 200818
Now measure BPM jitter both Now measure BPM jitter both with transverse RF OFF, and with transverse RF OFF, and then ON (at constant phase)then ON (at constant phase)
tt ±0.6 ps±0.6 ps
slope = slope = 2.34 mm/deg2.34 mm/deg
9 9 m rmsm rms 110 110 m rmsm rms
TCAV ONTCAV ONTCAV OFFTCAV OFF
BPM
Y P
ositi
on (
mm
)B
PM Y
Pos
ition
(m
m)
Measuring Bunch Arrival Time JitterMeasuring Bunch Arrival Time Jitter
ee
VV((tt))
SS-band (2856 MHz)-band (2856 MHz) BPMBPM
Timing Jitter (w.r.t. RF) = (110 Timing Jitter (w.r.t. RF) = (110 m)/(2.34 mm/deg) = 0.047 deg m)/(2.34 mm/deg) = 0.047 deg 46 fsec rms46 fsec rms
QQ = 0.25 nC = 0.25 nC
John N. Galayda
DESY Workshop [email protected]
October 8, 200819
Time-sliced Time-sliced xx-Emittance at Very Low Charge-Emittance at Very Low Charge
20 pC20 pC135 MeV135 MeV0.6-mm spot diameter0.6-mm spot diameter400 400 µµm rms bunch length (5 A)m rms bunch length (5 A)
TAILTAIL
(not same data)(not same data)
0.14 0.14 µµmm
John N. Galayda
DESY Workshop [email protected]
October 8, 200820
zz 1 1 m ?m ?
8 kA?8 kA?
LiTrackLiTrack(no CSR)(no CSR)
xx 0.4 0.4 m at m at zz 1 1 mm
Measurements and SimulationsMeasurements and Simulationsfor 20-pC Bunch at 14 GeVfor 20-pC Bunch at 14 GeV
Photo-diode signalPhoto-diode signal on OTR screen after BC2 shows on OTR screen after BC2 shows minimum compression at L2-linac phase of -34.5 deg.minimum compression at L2-linac phase of -34.5 deg.
Horizontal projected emittanceHorizontal projected emittancemeasuredmeasured at 10 GeV, after BC2, at 10 GeV, after BC2,using 4 wire-scanners.using 4 wire-scanners.
Y. DingY. Ding
LCLS FEL LCLS FEL simulationsimulation at 1.5 at 1.5 ÅÅ based on measured based on measured injector beam and injector beam and ElegantElegant tracking, tracking, with CSR, at 20 pC.with CSR, at 20 pC.
1.5 Å1.5 Å,,3.63.610101111 photons photonsIIpkpk = 4.8 kA = 4.8 kA 0.4 µm0.4 µm
PRELIMINARYPRELIMINARY
John N. Galayda
DESY Workshop [email protected]
October 8, 200821
20-pC Bunch at 4.3 GeV, 15 Angstrom 20-pC Bunch at 4.3 GeV, 15 Angstrom Approaches a LongitudinallyApproaches a LongitudinallyCoherent Single SpikeCoherent Single Spike
Y. DingY. Ding
15 Å15 Å,zz = 25 m, = 25 m,2.42.410101111 photons, photons,IIpkpk = 2.6 kA, = 2.6 kA, 0.4 µm0.4 µm
(power profile at (power profile at zz = 25 m varies from = 25 m varies from shot to shot due to noisy startup)shot to shot due to noisy startup)
1.2 fs1.2 fs
zz = 25 m = 25 m
LCLS FEL LCLS FEL simulationsimulation at 15 at 15 ÅÅ based on measured injector beam based on measured injector beam and and ElegantElegant tracking, tracking, with CSR, at with CSR, at 20 pC.20 pC.
John N. Galayda
DESY Workshop [email protected]
October 8, 200822
LCLSLCLS Installation and Commissioning Time-Line Installation and Commissioning Time-Line
LTU
/Und
/Dum
p
LTU
/Und
/Dum
p
Inst
all
Inst
all
Re-Re-commission commission
Inj/BC2 to SL2Inj/BC2 to SL2
LTU/LTU/UndUndComm. Comm.
First LightFirst Lightin FEEin FEE
PEP-I
I ru
n
PEP-I
I ru
n
ends
ends
FEE/N
EH
In
stall
FEE/N
EH
In
stall
PPS C
ert
. LT
U/D
um
pPPS C
ert
. LT
U/D
um
p
FEH
In
stall
FEH
In
stall
CD
-4C
D-4
(7
/31
/201
0)
(7/3
1/2
01
0)
X-R
ays
in N
EH
X-R
ays
in N
EH
First LightFirst Lightin FEHin FEH
NEH NEH Operations/ Operations/ CommissioningCommissioning
JJJJ FFFF MMMM AAAA MMMM JJJJ JJJJ AAAA SSSS DDDD JJJJ FFFF MMMM AAAA MMMM JJJJ JJJJ AAAA SSSS OOOO NNNN DDDD JJJJ FFFF MMMM AAAA MMMM JJJJ JJJJOONNA
2008 2009 20102008 2009 2010 2008 2009 20102008 2009 2010DownDown
PP
SP
PS
AM
no
wn
ow
Linac/BC2 Linac/BC2 CommissioninCommissionin
g g FEEFEE
Comm. Comm. May 2, 2008May 2, 2008
FEH
Hutc
h B
OFE
H H
utc
h B
O
Un
d.
Seg
. In
sta
llU
nd
. S
eg
. In
sta
ll
John [email protected]
DESY WorkshopOctober 8, 2008 23
Atomic Physics (LCLS) Atomic Molecular and Optical Physics 8/2009
Plasma and Warm Dense Matter Materials/matter under Extreme Conditions
Nanoscale Dynamics Coherent scattering at thein Condensed matter (LUSI) nanoscale (XCS) 3/2012
Structural Studies on Single Nano-particle and singleParticles and Biomolecules molecule (non-periodic)(LUSI) imaging (CXI) 4/2011
Femtochemistry Pump/probe diffraction (LUSI) dynamics (XPP) 12/2010
Soft X-Ray Imaging & Spectroscopy (SXR) 12/2009
FEL Science/Technology
Program developed by international team of scientists working with accelerator and laser physics communities
SLAC Report 611
“First Experiments” Realized within Concepts LCLS and LUSI
Science with LCLS
John N. Galayda
DESY Workshop [email protected]
October 8, 200824
Envisioned Placement of ExperimentsEnvisioned Placement of Experiments
Electron Dump
FEE
Hutch 1 Hutch 2 Hutch 3
X-Ray TunnelHutch 4
Hutch 5
Hutch 6S0
S1
S2
SH 1
M 1S M2S
M 3/4S
X3 X4
M6
S 3
SH2
S4
S5
S 6
Horizontal Offset Mirrors
PPS Stopper Set
X- Ray Mirror
X-Ray Crystal
Primary Movable Elements
Experiment
Near Experimental Hall
Far Experimental Hall
Moveable Dump
XPCS Pos2
XPCS
Pos1CXI
HED
XPP Pos1
XPP
Pos2
AM O
SXP
SXP
LUSI LUSILUSI
LCLS
BESSYDESY LBNL
SLAC
John N. Galayda
DESY Workshop [email protected]
October 8, 200825
Find out what will be
Schematic of AMO Instrument•Build/buy and assemble – Jul-Dec 2008•Assembly & Testing – Feb-Jun 2009•Ready for first light – Jul 2009
July 2010
John N. Galayda
DESY Workshop [email protected]
October 8, 200826
AMO Experiment Proposals for August 2009 Run
28 Proposals
206 Individual Signatories (82 from US)
15 Countries13 US States
13 US Universities
4 DOE Labs
>200% of beam time
John N. Galayda
DESY Workshop [email protected]
October 8, 200827
For More LCLS Information
LCLS Web Page
http://lcls.slac.stanford.edu/
Instrument Descriptions and Specifications
http://lcls.slac.stanford.edu/Instruments.aspx
LCLS User Meeting 15-18 October
http://www-conf.slac.stanford.edu/ssrl-lcls/2008/Proposal Submission
https://oraweb.slac.stanford.edu/apex/slacprod/f?p=188:1
John N. Galayda
DESY Workshop [email protected]
October 8, 200828
Presentation MaterialsThanks to:SLAC ANL LLNLJess Albino Geoffrey Pile Richard BiontaJohn Arthur Bill Berg Donn McMahon Paul Emma Marion WhiteTom FornekDavid SaenzDavid Schultz
