Status of the X-ray FEL control system at SPring-8
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1 Status of the X-ray FEL control system at SPring-8 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, , Japan 2 JASRI/SPring-8, Hyogo , Japan
2 Contents Overview of the X-ray FEL Control System Hardware Component Software Network Project Schedule Summary
3 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 Gun Linear Accelerator Insertion Device Laser 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 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 Random Distribution Micro-bunched
4 Birds-eye view of the XFEL produced with CG XFEL ~700m SPring-8 SCSS Test Acc.
5 Layout of the XFEL 0.5MeV 1μs -> 1ns 1nC Deflector 476MHz 30MeV 50ps -> 10ps 415MeV 10ps -> 1ps 1.45GeV 1ps -> 0.3ps (projected) Gun 238MHz L-band L-band Correction C-band Correction BC1 S-band (4units) BC2 C-band (12units) BC3 8GeV 0.3nc 3kA peak Bypass To BL Deflector Cavity C-band (52units) Chicane Undulators(4.5m*18units) Beam dump
6 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 Friday October 19 Y.Otake
7 XFEL need... A machine must be very stable like a storage ring. It is needed to suppress a temperature change of the cavity to 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.
8 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
9 ~ 100VME & ~250PLC
10 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.
11 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 PLC I/O signals OPT-RMT Optical fibers VME OPT-VME FL-net(Ethernet)
12 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 air Cooling water: 26±0.2 C Heat Exchanger
13 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 level Magnet Power Supply etc. Wiring space
14 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.
15 Software Solaris 10 x86 as a operating system for a VME CPU. It is possible to use Solaris Container. FL-net Main VME Solaris10 Vac EM RF EM Optical PLC link Zone FL-net Driver Vacuum Inverter Modulator OS
16 Event driven data acquisition system EM VME PC MS filler DB MS AS Shared memory EMA-EV EVGEN signal Position Data BPM Shared memory VME VME Shared VME Shared memory VME Sharedmemory Shared memory memory
17 Gigabit Ethernet is used for a backbone of network. Each FL-net is separated by VLAN Giga Ether Switch DB & File server Operator Consol VME Timing Ref.Memory 1000BASE-SX Magnet,Vac & Interlock H-PCF Magnet Power Supply PLC Injector : 6set BC1 S-Band : 4sets BC2 C-Band BC2 C-Band MS : 12sets : 52sets
18 Giga Ether Switch DB & File server Operator Consol VME Timing Ref.Memory 1000BASE-SX Magnet,Vac & Interlock H-PCF Magnet Power Supply PLC Injector : 6set BC1 Gigabit S-Band BC2 C-Band BC2 C-Band : 4sets : 12sets : 52sets MS FL-net
19 Project Schedule The XFEL machine construction already started and the machine tunnel will be completed at March ~ 150 piles GL Bedrock -50m
20 Project Schedule Live 10-Oct-2007
21 Project Schedule The RF aging will start in October 2010 and the commissioning will start in February 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.
22 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.
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