Injection Laser Stabilization Control System Preliminary Design

1
Injection Laser Stabilization Control System
Preliminary Design

• Outline
• Introduction
• Motion Control
• Image acquisition
• Status

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 lasers position, calculate error and
  apply the correction to the actuators.
• Whole loop should be about 1 Hz. Camera should be
  synced to 120Hz.

3
Introduction
4
Introduction
Spiricon Laser Beam Analyzer
Spiricon Laser Beam Analyzer
5
Motion Newport XPSC8 Motion Controller

• Pentium 4 PC based
• vxWorks powered
• Support up to eight motors
• Ethernet control interface

6
Motion Newport CMA-12CCCL actuator

• Travel range 12.5 mm
• Resolution 0.2µm
• Encoder Yes
• Bi-Direction repeatability 3µm
• Speed 50400 µm/S
• Load Capacity 90N
• Compatible with XPSC8

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
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
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 vendors 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.
• Cant 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.