Run with TAC and PS triggers.
508 um Al converter. 3.4 mm collimator (Run 10851).
508 um Al (top) and 750 um Be converters. 3.4 mm collimator (runs 10851 and 10852).
Ratio of converter thicknesses: L ( 508 um Al ) / L ( 750 um Be) for run with the 3.4 mm collimator (runs 10851 and 10852).