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* uniform [0,360] degrees in azimuth.
* uniform [0,360] degrees in azimuth.
The following figures show the position in (''r'',''z'') where the gamma conversions occurred. The shadows of the detector elements in the forward region are clearly seen, notably the CDC envelope, the FDC frames and cables, and the TOF, as well as the BCal (blue dots) and the FCal.
The following figures show the position in (''r'',''z'') where the gamma conversions occurred. The shadows of the detector elements in the forward region are clearly seen, notably the CDC envelope, the FDC frames and cables, and the TOF, as well as the BCal (blue dots) and the FCal.
[[Image:Xconv.gif|thumb|100px|Gamma conversion position]]
[[Image:Xconv.gif|thumb|Gamma conversion position]]
Projections onto ''z'' and ''r'' of this distribution are shown in the following figures. The peaks in these log plots are labeled by the detector element that produces them.
Projections onto ''z'' and ''r'' of this distribution are shown in the following figures. The peaks in these log plots are labeled by the detector element that produces them.
[[Image:Zconv.gif|thumb|Gamma conversion position projected onto ''z'']]
[[Image:Zconv.gif|thumb|Gamma conversion position projected onto ''z'']]