Difference between revisions of "DIRC Software Overview"
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=== Final Alignment === | === Final Alignment === | ||
* '''Goal:''' Optimize alignment parameters for positions and angles of all optical components using identified track samples | * '''Goal:''' Optimize alignment parameters for positions and angles of all optical components using identified track samples | ||
| − | * Plan to use Bayesian optimization technique with FastDIRC algorithm (Cris) | + | * Plan to use Bayesian optimization technique with FastDIRC algorithm (Cris/Yunjie) |
** Closure test with MC by the end of the year? | ** Closure test with MC by the end of the year? | ||
* Possible tests using sub-samples for alignment procedure and validation | * Possible tests using sub-samples for alignment procedure and validation | ||
** Align optical box components using tracks from single bar, then test alignment with tracks from other bars | ** Align optical box components using tracks from single bar, then test alignment with tracks from other bars | ||
** Align all components using identified pion sample, then test alignment with identified kaon sample | ** Align all components using identified pion sample, then test alignment with identified kaon sample | ||
Revision as of 09:47, 17 August 2018
Contents
Software Packages and Setup
The software packages required to run DIRC simulation and reconstruction are a part of standard GlueX software deployment.
- Packages: hdds, halld_recon, halld_sim, hdgeant4, etc.
- For the 2018 commissioning period we are using a branch of these repositories: dirc_commissioning_2018
- Installation instructions and a list of steps to start generating simulation can be found in this README file
The latest version of MC samples which can be studied with this branch are located at:
- Event samples:
/volatile/halld/home/jrsteven/2018-dirc/dircsim-2018_08-ver01/ - LUTs:
/group/halld/Users/jrsteven/2018-dirc/dircsim-2018_08-ver01/
Analysis Scripts
- Analysis and calibration scripts should be located in
dirc/directory of hd_utilities
Translation table
- Initial decoder work ongoing by David
LUT algorithm documentation
- Writeup from Maria
Studies
A list of DIRC Software Tasks is maintained, which are the required tools necessary for analysis of the commissioning data. Below are some planned/ongoing studies to evaluate the commissioning data.
Mis-alignment effects
- Goal: Study qualitatively how mis-alignments may impact hit patterns and LUT reconstruction
- Identify likely mis-alignments and implement in alternative XML geometries as examples of what we may observe in the data
- Try using LUT from "as-built" geometry to see how the mis-alignments affect the commissioning observables
Final Alignment
- Goal: Optimize alignment parameters for positions and angles of all optical components using identified track samples
- Plan to use Bayesian optimization technique with FastDIRC algorithm (Cris/Yunjie)
- Closure test with MC by the end of the year?
- Possible tests using sub-samples for alignment procedure and validation
- Align optical box components using tracks from single bar, then test alignment with tracks from other bars
- Align all components using identified pion sample, then test alignment with identified kaon sample
