Craft Pixel Data Study (II) JC Yun, 6/12/09 1) FPix: view from interaction point 2) FPix pseudo-rapidity coverage

Pixel Z-X view Barrel X-Y view Disk 1 X-Y viewDisk 2 X-Y view Disk 3 X-Y view Pixel Hit Maps Disk 4 X-Y view

Parallel beam view

Inner disk: view from interaction point

Inner disk: view from interaction point (close up view)

Inner disk: view from interaction point

Outer disk: view from interaction point (close up view)

Outer disk: view from interaction point

Inner disk pseudorapidity

Outer disk pseudorapidity

Pseudorapidity coverage Hits from inner disk Hits from outer disk overlap

Discussions There are some holes inside FPix fiducial envelope. Pseudorapidity coverage compared to figure35 from CMS document ( The CMS Experiment at the CERN LHC 1/6/2008) estimation from CMS doc fig. 35 eye ball estimation from the histogram(cosmic ray) Inner disk eta = ~1.5 : ~ 2.3 ~1.6 : ~ 2.35 Outer disk eta = ~1.8 : ~2.6 ~1.9 : ~ 2.7 Overlap region ( 2 hits) : ~1.9 : ~ 2.4