Project

General

Profile

Hall C Raster Information » History » Revision 5

Revision 4 (Richard Trotta, 05/03/2023 01:11 PM) → Revision 5/6 (Tanja Horn, 08/08/2024 02:29 PM)

h1. Hall C Raster Algorithm 

 !Hall_C_Raster_Algorithm.jpg! 

 

 h1. Raster Calibration 

 * Raster parameters from calibration 

 <pre> 
 ;               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 
 </pre> 

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

 * "Fast Raster correlations in H(e,e'p) during Fpi-2":https://hallcweb.jlab.org/hclog/0407_archive/040728122428.html