1. LARP Phase II Secondary Rotatable Collimator
5 min. Status Report
1st March, 2010

2. Mounting first jaw (RC-0) on base plate
Fake, plastic jaw
Real Jaw

3. CMM results
First Jaw (RC-1) CMM survey show flatness to well within 25 microns for majority of jaw but edges look to flair up a little.
Lots of data just obtained from CMM group and not processed by us yet.
Results to be documented, summarized and presented later

4. Oliver Aberle Visit
Many useful discussions on installing our collimator into SPS
Discussed:
Acceptance and Interface Documents
Commissioning tests and documentation
Torque tests
Survey and alignment
Cooling tube pressure tests, etc…
Details of design
What we provide, what CERN provide for SPS installation
Interconnections, hardware, supports, survey equipment etc…
Provided 3 copies of full plan drawings
Discussed drive table at great length
Installed better rails
Calibration and setting of limits switches, hard stops, etc…
We believe we have a good mutual understanding of what will happen over the next year

5. Trapped Modes
Numerous discussions with CERN and SLAC people on trapped modes.
Have developed methods to mitigate the larger R/Q of current design.
Some are very simple and already integrated
Waiting on R/Q and Q budgets from CERN.
See Liling Xiao’s talk later this meeting…