1. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 1 Injection Laser Stabilization Control System Preliminary Design Outline Introduction Motion Control Image acquisition Status

2. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 2 Introduction The injection laser stabilization control system includes 3 feedback loops. Each loop includes 2 mirrors. Each mirror has two actuators and one camera. The IOC should read back the image from camera, figure out laser’s position, calculate error and apply the correction to the actuators. Whole loop should be about 1 Hz. Camera should be synced to 120Hz.

3. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 3 Introduction Actuator 1 camera Laser Actuator 2

4. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 4 Introduction Spiricon Laser Beam Analyzer

5. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 5 Motion: Newport XPSC8 Motion Controller Pentium 4 PC based vxWorks powered Support up to eight motors Ethernet control interface

6. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 6 Motion: Newport CMA-12CCCL actuator Travel range:12.5 mm Resolution:0.2µm Encoder:Yes Bi-Direction repeatability: 3µm Speed:50~400 µm/S Load Capacity:90N Compatible with XPSC8

7. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 7 Image Acquisition: PULNiX TM-6710CL camera CCD:1/2” Shutter: Full Frame UV option:Yes Resolution:648x484 Progressive:Yes External Trigger:Yes Full scan:120Hz Analog Output:Yes Cameralink:Yes

8. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 8 Image Acquisition: Cameralink interface We have two candidates PULNiX Cam2net Pleora OEM (iPORT PT1000) Cameralink compatible Giga-Ethernet interface 16MB buffer External trigger interface EDT PMC DV C-Link Cameralink compatible 32bit/66MHz PCI Customized solution is available

9. LCLS Control Group Sheng Peng (pengs@slac.stanford.edu) October 26, 2005 9 Status Spiricon Laser Beam Analyzer has arrived and has been setup Newport XPSC8 motion controller, 4 motor drivers and 4 CMA-12CCL actuators have arrived Integration test with vendor’s software was tried and some problems were observed but not repeatable in LLNL. Further investigation is going on. EPICS driver and device support is available from APS. Code review has been done. Most of code seems from Newport. The coding style is ok. “socket” is working as NODELAY with polling rather than blocked with “select”. No any connection management such as connection monitor and recovery. 1 PULNiX TM-6710CL has arrived. 1 PULNiX cam2net has arrived. Can’t get non-disclosure agreement for current protocol. GigEVison is coming. Loaner EDT DV C-LINK PMC card arrived. Programming interface non-disclosure agreement were settled. Driver and device support development is going on. The first release is expected before the Christmas.