event_filter
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event_filter [2015/10/31 17:20] pereira [Hodoscope packet] |
event_filter [2015/10/31 21:44] pereira [TPPACs packet] |
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| + | ==== Mesytec TDC (MTDC) packet ==== | ||
| + | The MTDC packet includes the multiple timing values registered in each channel of the Mesytec MTDC for a given event. | ||
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| + | all the timing values encoded in the [[S800 USB DAQ data format#Tag 0x7186: Phillips 7186 TDC module for time-of-flights|Phillips TDC]] and the XFP-FP and OBJ-FP ToF from the ORTEC TACs encoded in the [[S800 USB DAQ data format#Tag 0x7167: Phillips 7164 ADC module for CRDC anodes (energies and TAC)|S800 Phillips 7164H ADC]]. | ||
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| + | * **Packet Length** (self-inclusive) | ||
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| + | ^ A number from 2 to 10 ^^^^^^^^^^^^^^^| | ||
| + | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | X | | ||
| + | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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| + | * **Packet Tag** | ||
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| + | ^ 0x5802 | ||
| + | | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | | ||
| + | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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| + | * **Time-of-flight values** | ||
| + | The time-of-flight information for each channel is coded in words that look like: | ||
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| + | ^ ^^^ Ch ^ time ^^^^^^^^^^^| | ||
| + | | 0 | 0 | 0 | X | X | X | X | X | X | X | X | X | X | X | X | X | | ||
| + | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | ||
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| + | Up to eight of these words can be present (depending on wheter **time** is greater than 0): six from the Phillips TDC, and two from the XFP-FP and OBJ-FP TACs. The channel number Ch is given by: | ||
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| + | ^ Ch ^ Source | ||
| + | | 6 | Phillips TDC time from the A1900 IM2 north scintillator (optional) | ||
| + | | 7 | Phillips TDC time from the A1900 IM2 south scintillator (optional) | ||
| + | | 12 | Phillips TDC time from the RF | | ||
| + | | 13 | Phillips TDC time from the OBJ scintillator | ||
| + | | 14 | Phillips TDC time from the XFP scintillator | ||
| + | | 15 | Phillips TDC time from the LaBr (optional) | ||
| + | | 4 | XFP-FP time-of-flight from TAC | | ||
| + | | 5 | OBJ-FP time-of-flight from TAC | | ||
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| + | Note that the time values from the Phillips TDC are subtracted by SpecTcl to the time from the S800 trigger E1 up (encoded in the [[#trigger packet|trigger packet]]) in order to calculate the corresponding time-of-flight. On the other hand, the times from the TACs (Ch 4 and 5) correspond to actual time-of-flight values. | ||
event_filter.txt ยท Last modified: 2019/05/24 13:58 by pereira
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