Assign each pmt pixel an index [0, 63] by sorting pixel volume translations inside its pmt volume.
This will result in a easy pixel numbering scheme (independent of pixel paths in the geometry -> version independant).
Neighbor pixels can now be easily determined and e.g. crosstalk implemented (following soon).
Row major, view upstream.
| x→ | ||||||||
| ↓y | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | |
| 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | |
| 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | |
| 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | |
| 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 |