The following document lists the file abstract/PHT_CAL_P32CAL01.abs
from catalogue VI/111.
A plain copy of the file
(without headers/trailers) may be downloaded.
The effects of detector transient behaviour on the PHT32 photometry and spatial response pattern has to be accurately determined. The obtained calibration images will ultimately serve as the basis for the development of techniques to remove these effects from all PHT32 observations, incl. the ghost image introduced by the saw-tooth chopping mode on bright sources. In conjunction with existing beam measurements (and vignetting measurements) the measurements will be used for the development of semi-empirical models for the detector behaviour in the PHT32 context. Such models would aim to describe the detector data for any combination of source and background brightnesses. The models would be the basic building block for the deconvolution of the non- linear detector response from illumination and would be the essential step towards the deconvolution of the point spread function from the data.