LARP Phase II Secondary Rotatable Collimator

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Presentation transcript:

LARP Phase II Secondary Rotatable Collimator 5 min. Status Report 15th February, 2010

First Jaw (RC-0) Full jaw and bearings on support ready for CMM then installation First jaw bearings and supports finished and installed ~300 1 mm Rhodium coated SS balls for image current ~1001 mm ceramic balls for load support

CMM CMM to give: Surface profile for each facet confirm within 25 micron surface flatness Find axis of rotation and concentricity of each facet Gravity sag (Should be very small) Second jaw (RC-1): Bearings being installed right now then goes to CMM

Trapped Modes Update Liling Xiao is finishing her studies of trapped modes with a more accurate model (Takes longer time to simulate)

Lowest Longitudinal Trapped Modes E-fields Original Current Jaws are fully inserted with gap=2mm Narrow EM foils as well as large distance between EM foils cause more Ez fields existing in the end regions of the vacuum tank along the beam path. Liling Xiao, Dec.14, 2009