Optical alignment
The following presentations provide basic understanding of misaligned optics and establish a strategy for the initial beamline alignment. Caution: big file sizes due to many animations! If you do not have Microsoft Office, better use their PowerPoint Viewer (it is free) rather than OpenOffice Impress (tested versions: 2.4.1. and 3.0) which incorrectly displays cropped images and some animations in the files below.
The goal of the alignment
- OpticalAlignment-0-main.ppt (9.33 MB)
- OpticalAlignment-1-CM.ppt (21.1 MB)
- OpticalAlignment-2-DCM.ppt (29.7 MB)
- OpticalAlignment-3-FM.ppt (22.2 MB)
The goal of the alignment
1) Ray-traced image with ideal mirrors and crystals:
2) Ray-traced image with ideal mirrors and distorted 1st crystal absorbing 750W (the CM radius is corrected as 1/Rnew=1/Rold+1/Rbump):
3) Ray-traced image with real mirrors (figure errors measured in ALBA Optics Lab) and thermally distorted 1st crystal:
coming soon