Last modified by sndueste on 2022/10/07 10:20
From version 2.1
edited by sndueste
on 2019/08/09 14:38
Change comment: There is no comment for this version
To version 4.1
edited by sendels
on 2021/02/10 15:04
Change comment: There is no comment for this version

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1 -XWiki.sndueste
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57 57  (((
58 58  BL0M0
59 -[[**reference settings~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]**>>url:https://ttfinfo.desy.de/elog/XMLlist?file=/ExpHallelog/data/2018/49/04.12/2018-12-04T11:22:29-01.xml&xsl=/elogbook/xsl/elog.xsl&picture=true||shape="rect"]]
59 +[[**reference settings~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]**>>url:https://ttfinfo.desy.de/ExpHallelog/show.jsp?dir=/2020/27/30.06&pos=2020-06-30T15:08:51||shape="rect"]]
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61 61  )))|(((
62 62  A311f
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770 770  ** The Vertical calib factor can be determined directly
771 771  ** The hor calib factor hat to take into account that the beam on the screen is larger due to the projection. So the calibration factor is larger for the horizontal direction in contrast to the vertical. this gives the angle of the screen in respect to the camera Tan = projection / beam. for the beam one can use the vertical size ( for round objects / beams). This gives the calibration for objects on the screen. However the Beam is projected on the screen and is larrger than the beam itself. and as second step one has to include the projection of the beam onto the screen with the factor Cos(screen angle)
772 772  ** for our 30 deg screns this is: calib(for Beamprofiles) = calib(with objects on the screen) / Cos(screen angle) = calib(with objects on the screen) * 1.15
773 -** for illustration:[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/BeamlineCameraParameters/Clipboard01.jpg~|~|alt="Clipboard01.jpg" width="640" height="400"~]~]>>attach:Clipboard01blcamera.jpg]]
778 +** for illustration:
779 +** [[image:attach:Clipboard01blcamera.jpg||height="400"]]
774 774  
775 775  \\
776 776  
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794 794  
795 795  * Beamline_screens.jpg:
796 -[[~[~[image:url:http://hasfweb.desy.de/pub/Setup/BeamlineCameraParameters/Beamline_screens.jpg~|~|alt="Beamline_screens.jpg" width="480" height="360"~]~]>>attach:Beamline_screens.jpg]]
802 +* [[image:attach:Beamline_screens.jpg||height="400"]]
803 +\\
797 797  
798 798  There is also an older Version with only 3 holes. there the diameter is also 2 mm and the distance between the holes is 23 mm