Calibration Access and Data Handbook

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The task returns the average pattern size of pixels with a pattern size greater than 12 for a given input energy or energy range. This value may be useful in the computation of pile-up effects.

The average size is calculated from the formula:

$\displaystyle Size = C_{0} + C_{1}.E + C_{2}.E^{2} + C_{3}.E^{3} + C_{4}.E^{4}$     (1)

where E is photon energy in keV and $C_{n}$ are coefficients read from the QuantumEff CCF.

Michael Smith 2011-09-20