Injection Laser Stabilization Control System Preliminary Design Outline

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

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 120 Hz. October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

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

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

Motion: Newport XPSC 8 Motion Controller Pentium 4 PC based vx. Works powered Support up to eight motors Ethernet control interface October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Motion: Newport CMA-12 CCCL actuator Travel range: 12. 5 mm Resolution: 0. 2µm Encoder: Yes Bi-Direction repeatability: 3µm Speed: 50~400 µm/S Load Capacity: 90 N Compatible with XPSC 8 October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Image Acquisition: PULNi. X TM-6710 CL camera CCD: 1/2” Shutter: Full Frame UV option: Yes Resolution: 648 x 484 Progressive: Yes External Trigger: Yes Full scan: 120 Hz Analog Output: Yes Cameralink: Yes October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group

Image Acquisition: Cameralink interface We have two candidates PULNi. X Cam 2 net Pleora OEM (i. PORT PT 1000) Cameralink compatible Giga-Ethernet interface 16 MB buffer External trigger interface October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) EDT PMC DV C-Link Cameralink compatible 32 bit/66 MHz PCI Customized solution is available LCLS Control Group

Status Spiricon Laser Beam Analyzer has arrived and has been setup Newport XPSC 8 motion controller, 4 motor drivers and 4 CMA-12 CCL 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 PULNi. X TM-6710 CL has arrived. 1 PULNi. X cam 2 net has arrived. Can’t get non-disclosure agreement for current protocol. Gig. EVison 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. October 26, 2005 Sheng Peng (pengs@slac. stanford. edu) LCLS Control Group