The size of the detection box = 2*boxhalfsize+1. boxhalfsize in [0:] Number of rays in the polar grid of PSF sample locations. naxial in [4:] Number of circles in the polar grid of PSF sample locations. nradial in [1:] Input exposure map. Output datset containing the convolvers. Fraction of energy under the PSF profile. Used by the CAL to calculate the size of the returned PSF array. efraction in (0:] Style of input of the PSF energies. PSF energy (eV). psfenergy in [1.0:] Image dataset with energy-selection information in its DSS. Flip the sign of the boresight euler%psi. This parameter should be removed after the boresight is fixed.