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magnet_v22b.geo.root is made from magnet_v22b.gdml, available from the gdml repo using the following commands
magnet_v22b does not contain the clamps and is to be used when the MUCH detector is used.
root -l << EOT
TGeoManager::Import("magnet_v22b.gdml")
TFile newfile("magnet_v22b.geo.root","recreate")
TGeoVolume* gdml_vol = gGeoManager->GetTopVolume()
newfile.WriteTObject(gdml_vol)
newfile.Close()
EOT
compared to v21b, the magnet has a renamed top volume to better follow convention.
It enlarges the width of the apperature and entire gometry by 30cm in the x direction.
It enlarges the height of the apperature and entire yoke by 3cm in the y direction (height).
The clamps are elongated in x but the positioning is maintained.