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Table 20.
HET level-2 trigger logic.
| L2 trigger # | Sensor | Coincidence condition | L3 trigger class | Description |
|---|---|---|---|---|
| 2 | HET |
 |
3 | HET Galactic cosmic rays |
| 3 | Unused | Unused | Unused | N/A |
| 4 | HET |
 |
1 | HET forward stopping in B1 or C |
| 5 | HET | A1 ∧ B1 ∧ B2 | 3 | HET forward penetrating |
| 6 | HET |
 |
2 | HET backward stopping in B2 or C |
| 7 | HET | A2 ∧ B2 ∧ B1 | 3 | HET backward penetrating |
Notes. The labels of the coincidences correspond to the labels of the respective detectors in HET. Detector nomenclature is given in Fig. 32.
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