[Gate-users] Material assignment in daughter volume

[Juan Sebastian Useche Parra]

Hi all,

I’m doing some X-rays simulation, and I found that when a volume is created as a daughter of another volume, with a different geometry than a box, the daughter volume always gets assigned the material of the mother volume, even though I’m doing the assignment manually.  Does somebody know if this is a bug or if I’m doing something wrong in the following macro?

#===============================================================================
#World
#===============================================================================

/gate/world/geometry/setXLength 2 m
/gate/world/geometry/setYLength 2 m
/gate/world/geometry/setZLength 2 m
/gate/world/setMaterial Vacuum
/gate/world/vis/setColor black
/gate/world/vis/setVisible False


#===============================================================================
#Simple detector
#===============================================================================
/gate/world/daughters/name                              simple_detector
/gate/world/daughters/insert                            box
/gate/simple_detector/geometry/setXLength                   1.4 cm
/gate/simple_detector/geometry/setZLength                   0.2 cm
/gate/simple_detector/geometry/setYLength                   1.4 cm
/gate/simple_detector/placement/setTranslation              0. 0. 0 cm
/gate/simple_detector/setMaterial                           CZT
/gate/simple_detector/vis/setColor                          blue
/gate/simple_detector/vis/forceSolid

#===============================================================================
#main_cylinder
#===============================================================================
/gate/world/daughters/name                          main_cylinder

/gate/world/daughters/insert                        cylinder
/gate/main_cylinder/geometry/setRmin                         2.75 mm
/gate/main_cylinder/geometry/setRmax                         3.05 mm
/gate/main_cylinder/geometry/setHeight                       1.72 cm

/gate/main_cylinder/placement/setTranslation                 0.3 0. 1 cm
/gate/main_cylinder/placement/setRotationAxis                0 1 0
/gate/main_cylinder/placement/setRotationAngle               90 deg

/gate/main_cylinder/setMaterial                              HPMC
/gate/main_cylinder/vis/setColor                             yellow
/gate/main_cylinder/vis/setLineWidth                         3
/gate/main_cylinder/vis/forceWireframe

#===============================================================================
#small_box
#===============================================================================
/gate/main_cylinder/daughters/name                              small_box
/gate/main_cylinder/daughters/insert                            box
/gate/small_box/geometry/setXLength                   1 mm
/gate/small_box/geometry/setYLength                   1 mm
/gate/small_box/geometry/setZLength                   2 mm
/gate/small_box/placement/setTranslation              0. 0. 0 mm
/gate/small_box/setMaterial                           Glass_Pyrex
/gate/small_box/vis/setColor                          white
/gate/small_box/vis/forceSolid

/gate/small_box/repeaters/insert    linear
/gate/small_box/linear/setRepeatNumber  3
/gate/small_box/linear/setRepeatVector  -1.1 0. 0 mm

Cheers,
Juan Sebastian Useche
Albert-Ludwigs-Universität Freiburg
Freiburger Materialforschungszentrum (FMF)
Stefan-Meier-Str. 21
79104 Freiburg
Germany

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