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tuning_the_s800_xdt [2015/10/22 16:43] pereira |
tuning_the_s800_xdt [2015/10/22 17:04] pereira |
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* There are three electronic " | * There are three electronic " | ||
- | * Although the ToF reference (" | + | * Although the ToF reference (" |
- | * The OBJ, XFP, and E1 up signals in the MTDC come from the Mesytec MCFD | + | * Before going to the ToF modules, the OBJ and XFP signals are sent to a CANBERRA CFD 454 CFD in data U6 from the data-U6 patch panel (OBJ: patch panel #54, XFP: patch panel #1). (The exception is the OBJ signal into the MTDC) |
- | * Before going to the ToF modules, the OBJ and XFP signals are sent to a CANBERRA CFD 454 CFD in data U6 from the data-U6 patch panel (OBJ: patch panel #54, XFP: patch panel #1) | + | |
* MTDC: | * MTDC: | ||
- | * The OBJ signal into the MCFD comes directly from the detector via S3 patch panel #94 (going to the target area) | + | |
+ | | ||
* The XFP signal into the MCFD module comes from data-U6 patch panel #70, connected to the CANBERRA 454 CFD XFP output | * The XFP signal into the MCFD module comes from data-U6 patch panel #70, connected to the CANBERRA 454 CFD XFP output | ||
- | * SpecTcl calculates the ToF by substracting the MTDC time from XFP (MTDC channel | + | * SpecTcl calculates the OBJ-to-Focal-Plane and XFP-to-Focal-Plane ToFs by substracting the E1 up time (MTDC channel |
* 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 | ||
* Tennelec TACs: | * Tennelec TACs: | ||
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* The OBJ output signal from the CANBERRA 454 CFD is delayed with the low-noise delay boxes in data-U6, and sent to the TDC via patch panel #67 | * The OBJ output signal from the CANBERRA 454 CFD is delayed with the low-noise delay boxes in data-U6, and sent to the TDC via patch panel #67 | ||
* The XFP output signal from the CANBERRA 454 CFD is delayed with the low-noise delay boxes in data-U6, and sent to the TDC via patch panel #66 | * The XFP output signal from the CANBERRA 454 CFD is delayed with the low-noise delay boxes in data-U6, and sent to the TDC via patch panel #66 | ||
+ | * SpecTcl calculates the OBJ-to-Focal-Plane and XFP-to-Focal-Plane ToFs by substracting the E1 up time (channel 8) to the OBJ time (channel 14) and the XFP time (channel 15) | ||
+ | |||
* The TDC start is sent from the ULM trigger module. Since the delay of the S800 trigger may be adjusted during XDT, the stop signals (e.g. from OBJ or XFP) will need to be re-adjusted. | * The TDC start is sent from the ULM trigger module. Since the delay of the S800 trigger may be adjusted during XDT, the stop signals (e.g. from OBJ or XFP) will need to be re-adjusted. | ||