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Hall C Raster Information » History » Revision 2

Revision 1 (Richard Trotta, 11/16/2022 09:21 AM) → Revision 2/6 (Richard Trotta, 05/03/2023 01:10 PM)

h1. Hall C Raster Algorithm 

 !Hall_C_Raster_Algorithm.jpg! 

 h1. Raster Calibration 

 ;               Fast Raster calibration constants 
 ;               ================================= 
   gusefr                 = 1   
 ; flag if 1 fast raster data used with average beam pos and angles in 
 ; calculating beam position 
 ; if 0 then only use average beam pos and angles in calculating beam position 
 ; Various fast raster quantities: gUse* are flags 

 ; Raster constants determined from coin run 4556 on Aug 20, 2018 
 gfr_cal_mom    = 8.518 
 gfrxa_adc_zero_offset = 64150 
 gfrxb_adc_zero_offset = 66250 
 gfrya_adc_zero_offset = 67700 
 gfryb_adc_zero_offset = 64100 
 gfrxa_adcpercm = 158000 
 gfrxb_adcpercm = 147000 
 gfrya_adcpercm = 155500 
 gfryb_adcpercm = 157500 


 * "Mark Jones' Raster Calibration":https://logbooks.jlab.org/entry/3589390 
 * "Run 4556, used for calibration":https://logbooks.jlab.org/entry/3589292