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Hall C Raster Information » History » Version 6

Tanja Horn, 08/08/2024 02:30 PM

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h1. Hall C Raster Algorithm
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!Hall_C_Raster_Algorithm.jpg!
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h1. Raster Calibration
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* Raster parameters from calibration
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<pre>
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;             Fast Raster calibration constants
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;             =================================
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  gusefr               = 1  
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; flag if 1 fast raster data used with average beam pos and angles in
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; calculating beam position
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; if 0 then only use average beam pos and angles in calculating beam position
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; Various fast raster quantities: gUse* are flags
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; Raster constants determined from coin run 4556 on Aug 20, 2018
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gfr_cal_mom  = 8.518
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gfrxa_adc_zero_offset = 64150
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gfrxb_adc_zero_offset = 66250
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gfrya_adc_zero_offset = 67700
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gfryb_adc_zero_offset = 64100
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gfrxa_adcpercm = 158000
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gfrxb_adcpercm = 147000
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gfrya_adcpercm = 155500
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gfryb_adcpercm = 157500
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</pre>
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* "Mark Jones' Raster Calibration":https://logbooks.jlab.org/entry/3589390
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* "Run 4556, used for calibration":https://logbooks.jlab.org/entry/3589292
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* "Fast Raster correlations in H(e,e'p) during Fpi-2":https://hallcweb.jlab.org/hclog/0407_archive/040728122428.html "and" https://hallcweb.jlab.org/hclog/0407_archive/040728115434.html