Line of sight? Last time I had the incorrect angle for the second image. This is the first image looking upstream from the Cernkov along the angle of the accepted electrons:
Can see through 2nd octant of coll. 3 through 3rd octant of coll. 2 into space upstream of the primary collimator. Extending the first collimator to 80 cm (previously 43.18 cm) you can see its edge:
And if you extend it to 90 cm, you can elimate line of sight:
Other things: I have added some QTOR supports to the geometry file and need to update the coil definitions, then I will look at the backgrounds with the new field map in a larger range: 2.5-45 degrees in theta and +/- 70 degrees in phi.
