Description
In the current channel map, the plane field corresponds to readout view ([0–2]), so collection channels from both APA sides are mapped to the same index.
For FD-HD, we need to distinguish the two sides of a double-sided APA.
Potential impact radius
Small/Isolated
Reason for change
This allows correct grouping per TPC volume in downstream processing.
Suggested implementations
The collection plane should be split into:
0: U
1: V
2: collection side A
3: collection side B
Testing suggestions
No response
Anything else?
More on this topic: 2026_04_21_FDHD_TPGrouping.pdf
Description
In the current channel map, the plane field corresponds to readout view ([0–2]), so collection channels from both APA sides are mapped to the same index.
For FD-HD, we need to distinguish the two sides of a double-sided APA.
Potential impact radius
Small/Isolated
Reason for change
This allows correct grouping per TPC volume in downstream processing.
Suggested implementations
The collection plane should be split into:
0: U
1: V
2: collection side A
3: collection side B
Testing suggestions
No response
Anything else?
More on this topic: 2026_04_21_FDHD_TPGrouping.pdf