BCAL Angular Coverage

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Correlation between theta angles and impact positions on the BCAL, for the production/physics runs of GlueX. These were calculated based on the current GlueX drawings and translated to the -200cm to +200cm (z=0cm is the middle of the BCAL Module-1) reference frame used during the 2006 Test Beam in Hall-B.

  theta    Z
(degrees) (cm)
--------------
    50    -112
    40    -102
    30     -54
    20     +10
    19     +22
    18     +33
    17     +46
    16     +60
    15     +75
    14     +93
    13    +115
    12    +138
    11    +167
    10    +201 (unphysical, beyond BCAL edge and into FCAL acceptance)