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tuning_the_s800_xdt [2015/10/29 13:21] pereira [Checking Particle ID and rate at S800 FP] |
tuning_the_s800_xdt [2015/10/29 13:25] pereira [CRDCs setup] |
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* End and Begin **[[s800 daq tools#Run Control Window|ReadoutGUI]]** to assert new trigger condition | * End and Begin **[[s800 daq tools#Run Control Window|ReadoutGUI]]** to assert new trigger condition | ||
- | * Select **[[s800 SpecTcl|Spectcl]]** window **S800_SCINT.win** in directory **/ | + | * Select **[[s800 SpecTcl|Spectcl]]** window **S800_SCINT.win** in directory **/ |
* Adjust **[[hv bias|bias]]** looking at 2D spectra **e1.deup_e1.dedown** (showing the parameters s800.fp.e1.de_down vs. s800.fp.e1.de_up) for the FP E1 scintillator | * Adjust **[[hv bias|bias]]** looking at 2D spectra **e1.deup_e1.dedown** (showing the parameters s800.fp.e1.de_down vs. s800.fp.e1.de_up) for the FP E1 scintillator | ||
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- | * Select **[[s800 SpecTcl|Spectcl]]** window **S800_IC.win** | + | * Select **[[s800 SpecTcl|Spectcl]]** window **S800_IC.win** |
* Adjust pad gains | * Adjust pad gains | ||
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* Count rate is a little higher than on scintillator due to noise or thresholds | * Count rate is a little higher than on scintillator due to noise or thresholds | ||
- | * Check **[[s800 SpecTcl|Spectcl]]** window **S800_CRDCS.win** in directory **/ | + | * Check **[[s800 SpecTcl|Spectcl]]** window **S800_CRDCS.win** (see figure below) to verify the good performance of the detectors. (The spectra for each CRDC can be checked separatelly in windows **s800_CRDC1.win** and **S800_CRDC2.win**) |
* Spectra **crdc1.raws** and **crdc2.raws** (top and middle spectra in the leftmost (first) column) | * Spectra **crdc1.raws** and **crdc2.raws** (top and middle spectra in the leftmost (first) column) | ||
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* Due to the multi-hit capability of the MTDC, we need to select the " | * Due to the multi-hit capability of the MTDC, we need to select the " | ||
* Use the spectra **TOF.MTDC_RF**, | * Use the spectra **TOF.MTDC_RF**, | ||
- | * Using the cursor mouse, check the lower and higher limits defining the region in the MTDC ToF spectra with the " | + | * Using the cursor mouse, check the lower and higher limits defining the region in the MTDC ToF spectra with the " |
* 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_objlow and s800.fp.vmetdc.mtdc_rfhigh for OBJ-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**, | * 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**, | ||