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    User name mhuang

    Log entry time 16:03:59 on April 03, 2012

    Entry number 369574

    Followups:

    keyword=Optics calib preliminary results of RHRS straight-thru

    Attached are the initial angular and dp calibration results on RHRS with
    straight through data (Gep setting).
    
    For this iteration, I used dp=0% sieve data to do angular calib, and cut
    on central hole only to do dp calib. 
    
    Looking at dp plot, they represent -3.5%, -1%, 0%, 2%, 3.5% respectively.
    \Delta in 2nd and 3rd pads are worse than others. I am going to include
    all dp scan sieve data for angular calib, and data from all holes to do
    dp calib. In this way, data will cover much more phase space, thus the
    fitting polynomial will describe data more accurately. Beam position
    calib is desirable too.
    


    A copy of this log entry has been emailed to: jixie, jpchen, slifer, mhuang, cg2ja, nl8n@virginia.edu



    Figure 1



    Figure 2