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event_filter

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event_filter [2015/10/31 17:04]
pereira [Ion-Chamber packet] 		event_filter [2015/10/31 17:18]
pereira [Hodoscope packet]
Line 411: Line 411:
   * **Packet Length** (self-inclusive)   * **Packet Length** (self-inclusive)
  
-^    A number from 5 to 325    ^^^^^^^^^^^^^^^| +^    A number from 3 to 19    ^^^^^^^^^^^^^^^| 
-| 0 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | X | X | X | X | X | X | X |+| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | X | X | X | X | X |
 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
  
Line 434: Line 434:
  
  
 +  * **Energy values**
 +The energy from each of the two Phillips 7164H ADC modules is given by a series of words that look like: 
  
 +^  ^^^ Ch ^   energy   ^^^^^^^^^^^|
 +| 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 |
  
  
 +where Ch is the crystal number in the packet (from 0 to 15). The Filter gives an energy word for each segment as long as **energy** is greater than 0.
  
  
  
  
 +
 +The third hodoscope packet with information from the coincidence register looks like:
 +
 +  * **Packet Length** (self-inclusive)
 +
 +^    5    ^^^^^^^^^^^^^^^|
 +| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
 +| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
 +
 +
 +  * **Packet Tag**
 +
 +^    0x58B0    ^^^^^^^^^^^^^^^|
 +| 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 +| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
 +
 +
 +  * **Hit pattern** 
 +
 +
 +^    hit pattern of first 16 crystals   ^^^^^^^^^^^^^^^|
 +| X | X | X | 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 |
 +
 +
 +
 +^    hit pattern of crystals 16 to 32   ^^^^^^^^^^^^^^^|
 +| X | X | X | 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 |
 +
 +
 +
 +  * **Time**
 +The Hodoscope OR time (from an ORTEC TAC encoded in the [[S800 USB DAQ data format#Tag 0x7167: Phillips 7164 ADC module for CRDC anodes (energies and TAC)|S800 Phillips 7164H ADC]]) is given by: 
 +
 +^  empty ^^^^   time   ^^^^^^^^^^^|
 +| 0 | 0 | 0 | 0 | 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 |
  
  
event_filter.txt · Last modified: 2019/05/24 13:58 by pereira

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