GEOM 300413¶

Tuesday 30 April at 15.00 BST

• Geometry (Ryan Bayes)
• Geometry Verification (Stefania Ricciardi)
• Absorbers (Pavel Snopok)
• CAD Models (Jason Tarrant)
• Detector Groups: Tracker (Chris Heidt)
• Magnets (Victoria Blackmore)
• AOB

Proposed date of next meeting Monday 13th May time 3 pm -

Actions from Previous Meeting¶

• ACTION: Jason to provide CAD files with fixed orientation and less details
  • DONE but problem with FastRad conversion to GDML (extra modules, all materal is Al)
• ACTION: Ryan to upload Jason's CAD model to DB to have a first version of STEP IV geometry in a MAUS release.
  Diffuser and cooling channel in two separate CAD files to be merged.
  • STANDS
• ACTION: Stefania to check how much time/particle/s with CAD geometry on RAL Tier2 (Matt reports 2.8 s/particle on his laptop)
  • STANDS Stefania checked that legacy files give 2.7s/muon with STEP IV on TIER2 PPD machines
• ACTION translate TOF (from legacy files updated by Durga), ABSORBER (Pavel), DIFFUSER (CAD files from Jason) geometry to gdml and store to DB (Ryan)
  • Ryan working on TOF, to be tested
• ACTION: FIX tracker GDML files - problem in translation (Ryan)
  • STANDS
• ACTION: Improving TRACKER Geometry description - fibres outside fiducial region (Heidt)
  • STANDS
• ACTION: GEANT4 warning messages when geometry from CAD import is used (Ryan)
  • STANDS
• ACTION: Produce geometry documentation for code developers and pass information to Ryan (Matt)
  • IN PROGRESS
• ACTION: Victoria Blackmore to implement magnet field map interface (Victoria)
  • STANDS

Notes from previous meeting¶

Jason looking into simplyfing other parts of the CAD model, but feedback needed.
Material issues (all components Al) could be due to Fast RAD interface. Ryan and Jason to check out GDML and IGES respectively to narrow down where the problem is.
Ryan will try to use the IGES files sent by Jason and produce new simulation files and see whether extra-elements have been added. Option with no GDML to MAUS Module interface ("revolutionary approach") set aside for thoughts in the background. Priority is to fix current simulation approach.

Notes for this meetings¶

Material problem - It appears there is no native material definition preserved neither in IGES nor STEP (which actually seem to give different geometries!) IGES preferred by Matt.
Proposed Solution - break model in different modules for different materials and fill in material by hand in GDML
Time to upload geometry is a few hours!! - this smells as a bug. Proposed solution - produce simplified geometry to narrow down where the problem comes from

Present:¶

Jason, Ryan, Stefania and Chris R.

Actions¶

All previous actions stands. In addition:

• Jason - produce new files to verify proposed solution (see notes above) with different CAD settings/resolution in FASTRad
• Ryan - convert new gdml files into MAUS Modules / verify time to upload geometry and give feedback to Jason

Phone etc¶

Dial-in numbers¶

• UK: 0844 4 73 73 73
• Switzerland: 0848 560 347
• US: 1 415 363 0833 (or 1 646 652 0772)
• Italy: 0821 230 749
• Others listed below
• Skype +49 1803 001 178

PIN: 746868 (PIMUNU)

International Dial in numbers¶

• UK: 0844 4 73 73 73
• Austria 0820 4000 1502
• Belgium 070 35 98 66
• France 0821 230 749
• Germany 01803 001 177
• Ireland 0818 270 007
• Italy 848 391 819
• Netherlands 0870 001 909
• Poland 0801 003 533
• South Africa 087 550 0375
• Spain 902 885 318
• Sweden 0939 2066 300
• Switzerland 0848 560 347
• United States 1 415 363 0833 (or 1 646 652 0772)
• Skype +49 1803 001 178
• World +44 844 580 0555