Bug #1963
Tracker geometry issue
100%
Description
Still trying to track down the chi2 anomaly... I reran MC with noise switched on (#1962). It didn't fix things. I just checked the tracker geometry using Chris Hunt's python API and... looks like there is Helium where there should be glue. Looks suspicious...
Files
| tku_tp.png (44.1 KB) tku_tp.png | |||
| plots.tar.gz (2.74 MB) plots.tar.gz | |||
| tku_tp_zoom.png (37.4 KB) tku_tp_zoom.png | |||
| fix_tracker_He_bug.py (533 Bytes) fix_tracker_He_bug.py | Superceded | ||
| tku_chi2_9_0.png (21.6 KB) tku_chi2_9_0.png | |||
| fix_tracker_He_bug.py (1.37 KB) fix_tracker_He_bug.py | Broken - Hydrogen content was set wrong | ||
| fix_tracker_He_bug.py (1.37 KB) fix_tracker_He_bug.py |
Updated by Rogers, Chris over 5 years ago
Nb: in the plot, yellow is Helium and Green is Polystyrene. There is just a bit of red which is steel.
Updated by Rogers, Chris over 5 years ago
- File tku_tp_zoom.png tku_tp_zoom.png added
Just a quick zoom to check the fibre geometry...
The apparent circles in previous plot are aliasing features.
Updated by Rogers, Chris over 5 years ago
- File fix_tracker_He_bug.py fix_tracker_He_bug.py added
Small script to hack in correct geometry
Updated by Rogers, Chris over 5 years ago
- File fix_tracker_He_bug.py fix_tracker_He_bug.py added
Following some email back and forthage, I added in Rencast as the glue (thanks to Chris Hunt). There is a script attached to set it up. Do
python fix_tracker_He_bug.py /path/to/geometry
Updated by Rogers, Chris over 5 years ago
- File fix_tracker_He_bug.py fix_tracker_He_bug.py added
Fixed a typo...
Updated by Rogers, Chris about 5 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100
This appears to be fixed. We still don't quite know the density, but it works okay for now.