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ToF Wall page.

Current actions

  • Check the pedestals run by run
  • Check the difference in the RAW light scaling btw Sweep runs and production runs
  • Fix the charge in single channels
  • Redo the peaks finding
  • Redo the calculation of Birks corrections fixing the peak at C_peak value.

Status of the slats for production runs.

Slat number Comments (Light) Peaks Fit + actions Sweep runs problems Pedestal Problems
1       ADCt missing for all runs
27 Only Pre Sweep + single channel?     Problematic for ALL runs. ADCt missing for all runs
32 Single channel (only b)      
35 Single channel (only t) Works up to 330      
36 Single channel (only b) Works up to 330     Top pedestal has a shift after 330 [pedestal moves from 430 to 460]
47 Discontinuity in light after run ~330. Need a C_peak value = after run 330. Needs shift adjust (supercazzola)   Discontinuity: the pedestal appears only for runs >330.. Difficult to use for previous runs.
50-54 Slat with holes: typically the light distribution shows discontinuities + larger gaussian      
56       ADCb missing for all runs
57-62 Discontinuity in light after pre/post sweep. Need a C_peak value = to center! Slat 60,61 needs to be fixed!    
66 Single channel (only b)      
73 Slat with poor light resolution. (broad peaks at p, He)      
76 Single channel     ADCb missing for all runs
77-78 Single channels      
75 troubles calibrating light   double Carbon peak  
80 Slat with poor light resolution. (broad peaks at p, He)      
82 Single channel     ADCt missing for pre-sweep and sweepruns. Problematic for ADCb
84 Only works pre sweep.     ADCt missing for pre-sweep and sweepruns
89 Single Channel (only b)     Problematic for ADCt
92 Check if there's a PEDESTAL problem      
93 Single channel      
94 ~ does not work      
101       ADCt missing for all runs
113       ADCt missing for pre-sweep and sweepruns
133 Only works pre sweep. Check PEDESTAL.     ADCt missing for pre-sweep and sweepruns
138 Shift pre-post.      
139 Single channel      
142 single channel only t      
144 Single channel only t      
147 Only pre sweep: problematic light behaviour.     ADCt missing for pre-sweep and sweepruns
152 Light: strange behaviour vs run      
153 Light: strange behaviour vs run      
156       ADCt missing for sweepruns
162 Single channel only b      
165      

ADCt missing for pre-sweep and sweepruns

ADCb missing for all runs

166-172 Problematic Slats: CHECK PEDESTALS! The scaling factors are missing!    
174 He disappears after the sweep runs!      
181, 183     Double Carbon peak  
185 Single channel      
187 single Channel (only b)      
188, 192     Double Carbon peak  
196 Completely Off. CHECK PEDESTALS! Pedestal is missing    
-- AlessioSarti - 24 Apr 2014
Topic revision: r5 - 2014-05-02, MarcoToppi
 
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