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T.Fukui 1 , T.Hirono 2 , N.Hosoda 1 , M.Ishii 2 , M.Kitamura 1 H.Maesaka 1 ,T.Masuda 2 , T.Matsushita 2 , T.Ohata 2 , Y.Otake 1 , K.Shirasawa 1 ,M.Takeuchi 2 , R.Tanaka 2 , A.Yamashita 2 1 RIKEN Spring-8 Joint-Project for XFEL, Hyogo,679-5148, Japan 2 JASRI/SPring-8, Hyogo 679-5198, Japan. - PowerPoint PPT Presentation
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ICALEPCS07, Knoxville, 16-Oct-2007
Status of the X-ray FEL control system at SPring-8
T.Fukui1, T.Hirono2, N.Hosoda1 , M.Ishii2, M.Kitamura1 H.Maesaka1,T.Masuda2, T.Matsushita2, T.Ohata2, Y.Otake1, K.Shirasawa1,M.Takeuchi2, R.Tanaka2,
A.Yamashita2
1RIKEN Spring-8 Joint-Project for XFEL, Hyogo,679-5148, Japan
2JASRI/SPring-8, Hyogo 679-5198, Japan
ICALEPCS07, Knoxville, 16-Oct-2007
Contents• Overview of the X-ray FEL• Control System
– Hardware Component– Software– Network
• Project Schedule
• Summary
ICALEPCS07, Knoxville, 16-Oct-2007
What is X-ray FEL (XFEL) at SPring-8
• Generate brilliant coherent X-ray with wavelength of below 0.1nm
• Consists of a low emittance electron gun, linear accelerator and in-vacuum undulators.– No mirror is available below 100nm
S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N
S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N S N SN
Gun Linear Accelerator Insertion Device Laser
Random Distribution Micro-bunched
ICALEPCS07, Knoxville, 16-Oct-2007
Birds-eye view of the XFEL produced with CG
~700mSPring-8
XFEL
SCSSTest Acc.
ICALEPCS07, Knoxville, 16-Oct-2007
Layout of the XFEL
Chicane Undulators(4.5m*18units)
Beam dump
C-band (52units)DeflectorCavity
C-band(12units)
S-band(4units)BC1 BC2 BC3Gun
Deflector
238MHz
476MHz
L-band
L-bandCorrection
C-bandCorrection
0.5MeV1μs -> 1ns 1nC
30MeV50ps -> 10ps
415MeV10ps -> 1ps
1.45GeV1ps -> 0.3ps (projected)
8GeV0.3nc3kA peak To BL
Bypass
ICALEPCS07, Knoxville, 16-Oct-2007
XFEL need ...• A machine must generate high density
electron bunch with a high peak intensity and a low emittance beam.– A tolerance is very tight.
• Amplitude stability < ±0.01%• 238MHz phase stability < ±0.01degree• 476MHz phase stability < ±0.02degree• C-Band Corr. timejitter < ±0.049psec
1320 - Friday October 19Y.Otake
ICALEPCS07, Knoxville, 16-Oct-2007
XFEL need ...• A machine must be very stable like a
storage ring.– It is needed to suppress a temperature
change of the cavity to 0.001°C. (@238MHz ~0.2°/0.01°C).
– It is important to control environmental condition.• A water temperature• An air temperature and flow• A power line voltage
– It must take care a facility operation as well as accelerator control.
ICALEPCS07, Knoxville, 16-Oct-2007
Control System
• Most of a component are same as the SCSS test accelerator. – The test accelerator is operated very well.
• The control framework is similar to the SPring-8 storage ring control system.– We will take care a slow feedback by software.
( a fast feedback by hardware )– It must be robust & scalable.
• Continuous operation • More than 100 VMEs
ICALEPCS07, Knoxville, 16-Oct-2007
~ 100VME & ~250PLC
ICALEPCS07, Knoxville, 16-Oct-2007
Hardware Component
• We use VMEbus for an equipment controller.– CPU
• IA-32 + Universe(PCI-VME Bridge) with Compact Flash boot
• PMC or XMC for a reflective memory
• Using OPT-VME for Magnet Control– Same as the SPring-8 linac and the SCSS
test accelerator.
ICALEPCS07, Knoxville, 16-Oct-2007
• We use PLC as remote I/O system– PLC for Modulator, Inverter, Vacuum, Cooling Water – We will select a optical fiber for a PLC link.– DeviceNet will be used for to reduce a wiring.– FL-net as a Communication between PLC and VME
…………
…………OPT-RMTOPT-RMT
Optical fibers
PLC
VME
FL-net(Ethernet)
I/O signals
OPT-VMEOPT-VME
ICALEPCS07, Knoxville, 16-Oct-2007
Hardware Component
• RF low level components will be installed in a water-cooled (26±0.2˚C) 19inch racks for temperature control.
– IQ modulator & demodulator
– High-speed A/D
and D/A VME boards
– Clock & trigger distribution unit
– Trigger delay VME board
Cooling water: 26±0.2°C
Cooling air
Heat E
xchanger
ICALEPCS07, Knoxville, 16-Oct-2007
Hardware Component
• We use VME enclosure with a horizontal installation of boards– Avoid a vibration cause by the air to shake the
cable.
RF Low levelMagnet Power Supply etc.
Wiring space
ICALEPCS07, Knoxville, 16-Oct-2007
Software• The MADOCA is used for the XFEL control
framework. – Same as the test accelerator.– The RDBMS is a key for stable operation.
• Logging data is used to find unstable parts.
• LINUX as a operating system for a operator console.– X-Mate as a GUI builder– Purify will be used for memory corruption detection
and memory leak detection.• For HP-UX, Purify help us to stable operation.
ICALEPCS07, Knoxville, 16-Oct-2007
Software
• Solaris 10 x86 as a operating system for a VME CPU.– It is possible to use Solaris Container.
Vacuum
Main VMESolaris10
OS
FL-net
Zone
VacEM
RFEM
FL-net DriverInverter Modulator
OpticalPLC link
ICALEPCS07, Knoxville, 16-Oct-2007
AS
MS filler DBDBPC
EM
MS
EVGEN
Sharedmemory
signal
VME
Sharedmemory
PositionData
Event driven data acquisition system
Sharedmemory
VMESharedmemory
VMESharedmemory
VMESharedmemory
VME
EMA-EV
BPM
ICALEPCS07, Knoxville, 16-Oct-2007
• Gigabit Ethernet is used for a backbone of network. – Each FL-net is separated by VLAN
Giga Ether Switch
Operator Consol
TimingMagnet,Vac & Interlock
DB & File server
1000BASE-SX
Injector: 6set
S-Band : 4sets
BC1 C-Band : 12sets
MS
H-PCF
Magnet Power Supply
PLC
VME
BC2 BC2 C-Band : 52sets
Ref.Memory
ICALEPCS07, Knoxville, 16-Oct-2007
Giga Ether Switch
Operator Consol
TimingMagnet,Vac & Interlock
DB & File server
1000BASE-SX
Injector: 6set
S-Band : 4sets
BC1 C-Band : 12sets
MS
H-PCF
Magnet Power Supply
PLC
VME
BC2 BC2 C-Band : 52sets
Ref.Memory
GigabitFL-net
ICALEPCS07, Knoxville, 16-Oct-2007
Project Schedule• The XFEL machine construction already
started and the machine tunnel will be completed at March 2008.
• ~ 150 piles
Bedrock
GL
-50m
ICALEPCS07, Knoxville, 16-Oct-2007
Project Schedule• Live Camera @ 10-Oct-2007
ICALEPCS07, Knoxville, 16-Oct-2007
Project Schedule• The RF aging will start in October 2010
and the commissioning will start in February 2011.
• The test accelerator is successfully operated to generate laser pulse about 30uJ/pulse
• We will start to serve as a EUV-FEL users facility in next week.
ICALEPCS07, Knoxville, 16-Oct-2007
Summary
• Most of the component was tested at the SCSS test accelerator.– The SCSS test accelerator is successfully
operated
• Some of a component has to be improved.• A commissioning of the XFEL start in
February 2011.