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Entry  Tue Jun 25 11:54:47 2019, Kruthi, Update, Cameras, GigE MC2_GigE.pdfCameras_final_setup.JPG
    Reply  Wed Jun 26 19:12:00 2019, Kruthi, Update, Cameras, GigE MC2_GigE_image.pdf
       Reply  Wed Jun 26 20:45:03 2019, gautam, Update, Cameras, Field of view options 
       Reply  Wed Jul 3 23:53:38 2019, Milind, Update, Cameras, data for nns 
Message ID: 14703     Entry time: Wed Jun 26 20:45:03 2019     In reply to: 14702
Author: gautam 
Type: Update 
Category: Cameras 
Subject: Field of view options 

For the beam spot position tracking, I am wondering if there is any benefit to going for a wider field of view and getting the OSEMs in the frame? It may provide some "anchor points" against which whatever algorithm can calibrate the spot position against. But there are also several point scatterers visible in the current view, and perhaps the Gaussiam beam profile moving over them and tracking the scattered intensity from these point scatterers serves the same function? I don't know of a good solution to have a "switchable" field of view configuration in the already cramped camera enclosure though.

Also, I think it may be useful to have a cron job take a picture of MC2 and archive it (once a week? or daily?) to have some long term diagnostic of how the scattered light received by the camera changes over several months.


The GigE is focused now and I have closed the lid. I'm attaching a picture of the MC2 beam spot, captured using GigE at an exposure time of 400µs

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