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20100416

Screen alignment OTR

  • Optics set file 10APR16_1901.dat
  • Screen position for alignment laser 9600
  • Screen posttion for electron beam 9400
  • beam orbit /atf/data/cbpm/raw/bpmAllLog_20100416_182345.dat
  • Mirror location to find signal otr:m1x 4.15002 otr:m1y 4.35002
  • Polarizer 90 deg
  • Magnification factor 10.7 and pixel size 7.14 um

Background Study

Loss monitor recorded for nominal ATF2 optics with OTR screen in. See Loss Monitor Fig 1.

  • HV : 1250 V
  • Signal level 2.8 volts, reduced to 1.5 volts

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Topic revision: r4 - 22 Apr 2010 - StewartBoogert

 
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