event_filter
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event_filter [2015/10/31 17:04] pereira [Ion-Chamber packet] |
event_filter [2015/10/31 17:13] pereira [Hodoscope packet] |
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| + | * **Energy values** | ||
| + | The energy from each of the two Phillips 7164H ADC modules is given by a series of words that look like: | ||
| + | ^ ^^^ Ch ^ | ||
| + | | 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. | ||
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| + | The third hodoscope packet with information from the coincidence register looks like: | ||
| + | |||
| + | * **Packet Length** (self-inclusive) | ||
| + | |||
| + | ^ A number from 5 to 325 ^^^^^^^^^^^^^^^| | ||
| + | | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | | ||
| + | |||
| + | |||
| + | * **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 | | ||
| + | |||
| + | |||
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| + | ^ 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 | | ||
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| + | * **Time** | ||
| + | The last word carries information from the ORTEC TAC | ||
| + | |||
| + | ^ 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 | | ||
| + | |||
| + | |||
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| + | |||
| + | |||
| + | |||
| + | where 0x0000 labels the energy sub-packet of the first group of crystals from 1 to 16, and 0x00001 labels the second group of crystals from 17 to 32. | ||
event_filter.txt ยท Last modified: 2019/05/24 13:58 by pereira
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