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timing [2020/04/02 20:54]
pereira [MTDC]
timing [2020/04/02 20:58] (current)
pereira [MTDC]
Line 17: Line 17:
   * The MTDC timing signals do not require external delay adjustments because the matching window is sufficiently wide    * The MTDC timing signals do not require external delay adjustments because the matching window is sufficiently wide 
   * The width and delay of the matching window can be changed in file **vmusbdaqconfig.tcl** in directory **/user/s800/s800daq/Scripts**   * The width and delay of the matching window can be changed in file **vmusbdaqconfig.tcl** in directory **/user/s800/s800daq/Scripts**
-  * SpecTcl calculates the OBJ-FP and XFP-FP ToFs by substracting the E1 up time (MTDC channel 15) to the OBJ time (MTDC channel 3) and the XFP time (MTDC channel 2) +  * The S800 SpecTcl used for online analysis calculates the OBJ-FP and XFP-FP ToFs by substracting the E1 up time (e.g. MTDC channel 0) to the OBJ time (MTDC channel 3) and the XFP time (MTDC channel 2). (Note that a better way to calculated these ToFs should use the average time E1_up and E1_down.)
   * Note that the same flat ribbon cable connected to the MTDC is also feeding the scaler module. Thus, the 16 channels in the MTDC are exactly the same as channels 16-31 of the scaler module   * Note that the same flat ribbon cable connected to the MTDC is also feeding the scaler module. Thus, the 16 channels in the MTDC are exactly the same as channels 16-31 of the scaler module
   * Copies of the timing signals from XF and OBJ used for the TAC ToF were included in channels 8 and 9 of the MTDC (also the scaler)    * Copies of the timing signals from XF and OBJ used for the TAC ToF were included in channels 8 and 9 of the MTDC (also the scaler) 
timing.txt ยท Last modified: 2020/04/02 20:58 by pereira