The trigger pattern (TPAT) of the TRLO module assigns different TPATs for each combination of logically linked incoming triggers.
Our list of incoming triggers on the ECL & LEMO inputs of the TRLO is the following:
ECL_IN(1): Telescope
ECL_IN(2): Fission
ECL_IN(3): HeavyResidual
ECL_IN(4): SolarCells
ECL_IN(5): Xray-90
ECL_IN(6): Xray-145
LEMO_IN(1): jet-ON
LEMO_IN(2): jet-OFF
The current logic in the E028.trlo config in MBS folder creates the following TPATs:
|
TPAT | Detector
| |
0 | Tel AND jet-ON
| |
1 | Fis AND jet-ON
| |
2 | HRes AND jet-ON
| |
3 | Cell AND jet-ON
| |
4 | (Xray-90 OR Xray-145) AND jet-ON
| |
|
| |
5 | Tel AND jet-OFF
| |
6 | Fis AND jet-OFF
| |
7 | HRes AND jet-OFF
| |
8 | Cell AND jet-OFF
| |
9 | (Xray-90 OR Xray-145) AND jet-OFF
|
The TPATs start counting at 0 here, be aware that the LogicalMatrixUnit (LMU) in TRLO config does start counting at 1. E.g. TPAT 0 is defined by [trig_lmu_out(1)= tel AND jetON].
For each event several TPATs can be active at the same time, i.e. coincidences like [Tel & HRes], which do not have an individual TPAT assigned for their coincident occurance, we would see TPATs 0 and 2, in case the jet-ON signal is present. To get an individual number for each of those coincidence channels, the expanded TPAT (EPAT) is used. It is created by adding up 2^TPAT for each active TPAT:
EPAT = Sum_i( 2^TPAT_i )
As an example EPAT 27 is the sum of TPATs 0, 1, 3, 4 and a coincidence between Tel/Fis/Cell/Xray.
27 = 2^0 + 2^1 + 2^3 + 2^4
A table for the first 5 TPATs is given below, i.e. for all jetON events.
|
EPAT | TPAT combination | Detectors
| |
1 | 0 | Tel
| |
2 | 1 | Fis
| |
3 | 0 + 1 | Tel + Fis
| |
4 | 2 | HRes
| |
5 | 2 + 0 | Tel + HRes
| |
6 | 2 + 1 | Fis + HRes
| |
7 | 2 + 1 + 0 | Tel + Fis + HRes
| |
8 | 3 | Cells
| |
9 | 3 + 0 | Tel + Cells
| |
10 | 3 + 1 | Fis + Cells
| |
11 | 3 + 1 + 0 | Tel + Fis + Cells
| |
12 | 3 + 2 | HRes + Cells
| |
13 | 3 + 2 + 0 | Tel + HRes + Cells
| |
14 | 3 + 2 + 1 | Fis + HRes + Cells
| |
15 | 3 + 2 + 1 + 0 | Tel + Fis + HRes + Cells
| |
16 | 4 | XrayOR
| |
17 | 4 + 0 | Tel + XrayOR
| |
18 | 4 + 1 | Fis + XrayOR
| |
19 | 4 + 1 + 0 | Tel + Fis + XrayOR
| |
20 | 4 + 2 | HRes + XrayOR
| |
21 | 4 + 2 + 0 | Tel + HRes + XrayOR
| |
22 | 3 + 2 + 1 | Fis + HRes + XrayOR
| |
23 | 3 + 2 + 1 + 0 | Tel + Fis + HRes + XrayOR
| |
24 | 4 + 3 | Cell + XrayOR
| |
25 | 4 + 3 + 0 | Tel + Cell + XrayOR
| |
26 | 4 + 3 + 1 | Fis + Cell + XrayOR
| |
27 | 4 + 3 + 1 + 0 | Tel + Fis + Cell + XrayOR
| |
28 | 4 + 3 + 2 | HRes + Cell + XrayOR
| |
29 | 4 + 3 + 2 + 0 | Tel + HRes + Cell + XrayOR
| |
30 | 4 + 3 + 2 + 1 | Fis + HRes + Cell + XrayOR
| |
31 | 4 + 3 + 2 + 1 + 0 | Tel + Fis + HRes + Cell + XrayOR
|
Many of the combinations here can only be created by random coincidences and are not relevant for the experiment.
The table can continued for jetOFF events with TPATs > 4 and EPATs > 31, but this is omitted here. |