Dune-ND-GGD

This is a tool to build proposal geometries for DUNE near detector.

dunendggd is based on GeGeDe and started out as gyang9/dunendggd.

Setup

Installing dunendggd

This package can be installed as user using pip:

pip install -e .

Or if you do not have pip on your system and do not want to install it:

python setup.py develop --user

With root privileges:

python setup.py develop

Don't forget to check your variable PATH:

export PATH=~/.local/bin/:${PATH}

Building default geometries

The default geometries are defined in the Makefile. To build them just invoke

make prod

Have a look in the Makefile to see what kind of geometries are defined there.

Hint: The nosand geometries build much, much faster than the geometries including the sand detector.

Quick Visualization

To do a quick check or your geometry file you can use ROOT-CERN:

root -l 'geoDisplay.C("example.gdml")'

Online Visualization

You can also use the JSROOT webpage on https://dune.github.io/dunendggd/ to visualize a geometry. That page should already contain the default geometries from the last CI test, but you can also upload root files containing geometries yourself. You can use the gdml2root.C macro to convert gdml files to root files.

Checking geometry positions

The macro locateVolume.C can be used to check positions of volumes in the global coordinate system:

$ root -b -q 'locateVolume.C("nd_hall_with_lar_tms_sand.gdml", "volWorld/rockBox_lv_0/volDetEnclosure_0/volTMS_0/thinlayervol_0/thinvolTMS_0")'
   ------------------------------------------------------------------
  | Welcome to ROOT 6.30/04                        https://root.cern |
  | (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
  | Built for linuxx8664gcc on Feb 03 2024, 23:12:12                 |
  | From tags/v6-30-04@v6-30-04                                      |
  | With c++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0                   |
  | Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q'  |
   ------------------------------------------------------------------


Processing locateVolume.C("nd_hall_with_lar_tms_sand.gdml", "volWorld/rockBox_lv_0/volDetEnclosure_0/volTMS_0/thinlayervol_0/thinvolTMS_0")...
== Loading Geometry ==
== Switching to volume path: volWorld/rockBox_lv_0/volDetEnclosure_0/volTMS_0/thinlayervol_0/thinvolTMS_0 ==
== Volume information ==
== Volume: thinvolTMS type TGeoVolume positioned 2 times
*** Shape boxTMS: TGeoBBox ***
    dX =    87.45000
    dY =   251.10000
    dZ =     0.75000
    origin: x=    0.00000 y=    0.00000 z=    0.00000
Mixture SteelTMS    Aeff=55.7025 Zeff=25.938 rho=7.85 radlen=1.7654 intlen=16.9869 index=41
   Element #0 : C  Z=  6.00 A= 12.01 w= 0.000
   Element #1 : FE  Z= 26.00 A= 55.84 w= 0.995
   Element #2 : SI  Z= 14.00 A= 28.09 w= 0.004
== Node information ==
OBJ: TGeoNodeMatrix	thinvolTMS_0
== Matrix information ==
matrix global_5 - tr=1  rot=1  refl=0  scl=0 shr=0 reg=0 own=0
  1.000000    0.000000    0.000000    Tx = -264.350000
  0.000000    1.000000    0.000000    Ty = -135.223000
  0.000000    0.000000    1.000000    Tz = 1139.550000

The Volume information tells us the shape and size of the volume, as well as its material. The matrix information tells us the rotation and translation of the volume in the global coordinate system.

You can use any of the visualisation methods above to browse the geometry and find the paths to the volumes you want to inspect.

Currently this does not work copies of volumes ending with #<some_number>.

Contact

• dunendggd: Package managers
  • Lukas Koch
  • Mathew Muether
• GeGeDe:
  • Brett Viren