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* [[Electronics# | * [[Electronics# | ||
* [[Electronics# | * [[Electronics# | ||
- | * [[Electronics# | + | * [[Electronics# |
+ | * [[Trigger|ULM Trigger | ||
+ | * [[Timing|Timing modules]] | ||
+ | * [[XLM Delay|XLM Delay module]] | ||
+ | |||
+ | ===== Crate Configuration ===== | ||
+ | Most of the S800 electronics is installed in two racks inside the cabinet seating on the top level of the S3 vault, right in the north side of the [[Stations# | ||
- | ===== Crate Configuration | + | |
- | A preliminary scheme of the crate configuration (in progress) can be found {{:wiki:s800electronicstcrateconfiguration2.pdf|here}}. | + | |
+ | |||
+ | {{: | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | === VME crate === | ||
+ | {{: | ||
+ | |||
+ | |||
+ | === CAMAC crate === | ||
+ | {{: | ||
+ | |||
+ | |||
+ | === NIM crate 1 === | ||
+ | {{:wiki:nim-crate1.jpg?450|NIM crate 1}} | ||
+ | |||
+ | |||
+ | === NIM crate 2 === | ||
+ | {{: | ||
+ | |||
+ | |||
+ | === NIM crate 3 === | ||
+ | {{: | ||
+ | |||
+ | |||
+ | === NIM crate 4 === | ||
+ | {{: | ||
===== Inventory Modules ===== | ===== Inventory Modules ===== | ||
+ | In progress. | ||
+ | |||
+ | |||
===== Electronic Diagrams ===== | ===== Electronic Diagrams ===== | ||
- | * {{:wiki:s800electronicstschematics_to20131125.pdf|Main Electronic Diagram}} | + | * {{:wiki:s800electronicstschematics-to20150907.pdf|Main Electronic Diagram}} |
* {{: | * {{: | ||
* {{: | * {{: | ||
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+ | |||
+ | ===== Documentation ===== | ||
+ | |||
+ | * Manuals for electronic modules | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * Firmware FPGA Schematics | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ===== Timing ===== | ||
+ | In a typical S800 experiment, there are different time-of-flight (ToF) measurements that can be used to identify the fragments of interest. The most common timing-signal sources used are the RF cyclotron; the thin plastic scintillator at the A1900 focal plane box (XFP); the [[Detectors# | ||
+ | |||
+ | Although it is possible to measure the ToF between any pair of timing sources, there are three " | ||
+ | |||
+ | Although the timing reference (" | ||
+ | |||
+ | Some important things to know about each of these modules: | ||
+ | |||
+ | |||
+ | === MTDC === | ||
+ | * This module has multi-hit capabilities and better time resolution than the Phillips TDC and TACs. However, it is not yet in production mode | ||
+ | * Before getting into the MTDC, the OBJ, XFP, and E1 up signals go through a {{: | ||
+ | * The OBJ signal into the MCFD comes directly from the detector via S3 patch panel #94 | ||
+ | * The XFP detector signal is sent to a {{: | ||
+ | * The MTDC timing signals do not require external delay adjustments because the matching window is sufficiently wide | ||
+ | * 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) | ||
+ | === Tennelec TACs === | ||
+ | * Unlike the MTDC and Phillips TDC, there is no TAC for the RF-FP ToF | ||
+ | * Before going to their corresponding TAC, the OBJ and XFP detector signals are sent to a {{: | ||
+ | * The OBJ output from the CANBERRA 454 CFD is sent to the stop of OBJ-FP TAC via patch panel #62 | ||
+ | * The XFP output from the CANBERRA 454 CFD is sent to the stop of XFP-FP TAC via patch panel #70 | ||
- | ===== Electronic Diagram ===== | + | === Phillips TDC === |
- | ===== Trigger | + | * Before going to the TDC, the OBJ and XFP detector signals are sent to a {{: |
+ | * The TDC start is provided by the [[Trigger|ULM trigger module]]. Since the delay of the S800 trigger may be adjusted during tuning of the S800 (XDT), the stop signals (e.g. from OBJ or XFP) need to be re-adjusted so that the ToF fits into the 400-ns range of the TDC. This is done manually for OBJ and XFP, and remotely (via delay GUI) for other timing signals | ||
+ | * 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 | ||
+ | * SpecTcl calculates the OBJ-FP and XFP-FP ToFs by substracting the E1 up time (channel 8) to the OBJ time (channel 14) and the XFP time (channel 15) | ||