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tuning_the_s800_xdt

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tuning_the_s800_xdt [2016/03/13 16:18]
pereira [FP scintillator setup] 		tuning_the_s800_xdt [2017/04/06 10:54]
pereira
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       * The two spectra in the fifth row corresponds to the MTDC summary spectra of OBJ-FP and XFP-FP ToFs (zoomed in). The spectra show the ToF (vertical axis) vs. hit number (horizontal axis). Note that in a unreacted-beam setting, the first hit typically provides the "good" ToF (i.e. start and stop signals come from the same event). This is not the case in a reaction setting, where the rates in the XFP and OBJ detectors are much higher than in the FP SCI        * The two spectra in the fifth row corresponds to the MTDC summary spectra of OBJ-FP and XFP-FP ToFs (zoomed in). The spectra show the ToF (vertical axis) vs. hit number (horizontal axis). Note that in a unreacted-beam setting, the first hit typically provides the "good" ToF (i.e. start and stop signals come from the same event). This is not the case in a reaction setting, where the rates in the XFP and OBJ detectors are much higher than in the FP SCI 
       * An empty ToF spectrum means that either the delays are not right (and need to be adjusted) or the spectrum range is too narrow        * An empty ToF spectrum means that either the delays are not right (and need to be adjusted) or the spectrum range is too narrow 
-      * The MTDC spectra should never be empty because the matching window is sufficiently wide (around 4000 ns)+      * The MTDC delays should never need to be adjusted because the matching window is sufficiently wide (around 4000 ns)
  
 {{:wiki:SpecTcl-e14019-run103.jpg?850|S800_ToF.win page}} {{:wiki:SpecTcl-e14019-run103.jpg?850|S800_ToF.win page}}
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       * Using the cursor mouse, check the lower and higher limits defining the region in the MTDC ToF spectra with the "good" ToF peak. Do it for the three ToFs: RF-FP, OBJ-FP, and XFP-FP       * Using the cursor mouse, check the lower and higher limits defining the region in the MTDC ToF spectra with the "good" ToF peak. Do it for the three ToFs: RF-FP, OBJ-FP, and XFP-FP
       * Go to the **Variables** page in SpecTcl GUI and assign the limits to the following variables:        * Go to the **Variables** page in SpecTcl GUI and assign the limits to the following variables: 
-              * **s800.fp.vmetdc.mtdc_objlow** and **s800.fp.vmetdc.mtdc_rfhigh** for RF-XFP +              * **s800.fp.vmetdc.mtdc_rflow** and **s800.fp.vmetdc.mtdc_rfhigh** for RF-XFP 
-              * **s800.fp.vmetdc.mtdc_objlow** and **s800.fp.vmetdc.mtdc_rfhigh** for OBJ-XFP+              * **s800.fp.vmetdc.mtdc_objlow** and **s800.fp.vmetdc.mtdc_objhigh** for OBJ-XFP
               * **s800.fp.vmetdc.mtdc_xfplow** and **s800.fp.vmetdc.mtdc_xfphigh** for XFP-XFP               * **s800.fp.vmetdc.mtdc_xfplow** and **s800.fp.vmetdc.mtdc_xfphigh** for XFP-XFP
       * For each ToF, SpecTcl will search the hit number that fits in the selected region. The new MTDC ToF parameters are **s800.fp.vmetdc.mtdc_rf**, **s800.fp.vmetdc.mtdc_obj**, and **s800.fp.vmetdc.mtdc_xfp**        * For each ToF, SpecTcl will search the hit number that fits in the selected region. The new MTDC ToF parameters are **s800.fp.vmetdc.mtdc_rf**, **s800.fp.vmetdc.mtdc_obj**, and **s800.fp.vmetdc.mtdc_xfp** 
tuning_the_s800_xdt.txt · Last modified: 2023/09/22 15:15 by swartzj

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