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- Beam line and shielding
- Gap between barrel and toroid
- Cavern outline
- Previously missing barrel toroid.
- Barrel muon chambers used to be modeled as cylinders, now modeled as flat packages.
- Proper position of endcap muon chambers
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Some simplifications will be made, especially detector internal geometries which are important for detector response but not for this application. It is important to maintain the proper isotopic composition of materials as neutron cross sections are sensitive.
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