Overlap between TPC envelope and BTOF envelope

Geometry tag: y2009a

Figure below shows 4 views of the TPC envelope and BTOF envelope.  The outer radius of the TPC envelope extends to 214 cm, the inner radius of the btof envelope starts at 207.8 cm.  Thus the TPC is masking off the BTOF.  The outer field cage of the TPC extends to 207.731 cm.