S800 Documentation

User Tools

Site Tools

Trace:
tuning_the_s800_xdt

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Next revision Both sides next revision
tuning_the_s800_xdt [2017/05/26 16:06]
pereira [Timing setup] 		tuning_the_s800_xdt [2017/06/17 14:37]
pereira [FP scintillator setup]
Line 66: Line 66:
  
 ==== FP scintillator setup ==== ==== FP scintillator setup ====
 +
 +  * Make sure that S800 DAQ is in [[s800 daq tools#Running in Slave mode with multilogger |Slave mode and multilogger enabled]] to record S800 data in the s800 stagearea.
  
   * Set trigger to “s800 trigger”    * Set trigger to “s800 trigger” 
Line 158: Line 160:
 {{:wiki:CRDCS-example.png?850|S800_CRDCS.win SpecTcl window}} {{:wiki:CRDCS-example.png?850|S800_CRDCS.win SpecTcl window}}
  
 +
 +      * Check **[[s800 SpecTcl|Spectcl]]** window **S800_CRDCS_EFF.win** (see figure below) to verify the efficiency of the detectors. 
 +         * Start a new run recording data on disk
 +         * Make a gate in spectrum **ic.sum** (top right plot) to select the Z region of interest, and call it **ic**
 +         * Make a summing region around the "bananas" in spectra **crdc1.x.tac!ic** and **crdc2.x.tac!ic** (bottom left and right plots respectively)
 +         * Stop the run and rescan data from disk
 +         * Compare the number of event inside the 2D summing regions with the number of events inside the **ic** gate. Typically the former are very close to the later (nearly 100% efficiency for medium/high Z)
 +
 +{{:wiki:CRDCS-eff-015028.png?550|S800_CRDCS_EFF.win SpecTcl window}}
  
 ==== Timing setup ==== ==== Timing setup ====
Line 185: Line 196:
  
   * If necessary, adjust delays of Phillips TDC (in principle, the TACs delays don't need to be adjusted):   * If necessary, adjust delays of Phillips TDC (in principle, the TACs delays don't need to be adjusted):
-      * Using the [[S800 DAQ tools#Trigger GUI|ULM trigger GUI]] assign TDC-start to one of the Inspect Trigger channels (patch panel #55 - #58) and trigger the scope with it (be aware that the TDC-start signal seen in the scope has an additional delay of ~200 ns due to the length of the cables between the ULM module in S3 vault and dataU6 patch panel)+      * Using the [[S800 DAQ tools#Trigger GUI|ULM trigger GUI]] assign TDC-start to one of the Inspect Trigger channels (patch panel #55 - #58) and trigger the scope with it 
       * Connect the XFP and/or OBJ signals going to the Phillips TDC (via cables plugged to patch #66 and #67, respectively) to the scope       * Connect the XFP and/or OBJ signals going to the Phillips TDC (via cables plugged to patch #66 and #67, respectively) to the scope
-      * Adjust the TDC delays of OBJ and/or XFP with respect to the TDC start, using the delay boxes connected to the CANBERRA CFD 454 in data U6 +      * Adjust the TDC delays of OBJ and/or XFP with respect to the TDC start using the delay boxes connected to the CANBERRA CFD 454 in data U6 (~200 ns delay is good) 
-      * Be aware that the after adjusting OBJ and XFP delays in the scope, the signal will be further delayed by ~200 ns due to the length of the cable between dataU6 patch panel and the Phillips TDC in the S3 vault.+      * Check the corresponding ToF spectra in SpecTcl to confirm that the timings are properly adjusted.
  
   * Check the efficiencies of the Phillips TDC, TACs, and MTDC for the OBJ-FP and XFP-FP ToFs:   * Check the efficiencies of the Phillips TDC, TACs, and MTDC for the OBJ-FP and XFP-FP ToFs:
tuning_the_s800_xdt.txt · Last modified: 2023/09/22 15:15 by swartzj

Page Tools

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
CC Attribution-Noncommercial-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki