Summary

The comparison of the data with the calculation indicates the high quality of the description. It can handle different radiators and collimators as well as the experimental deficiencies in its full complexity via the MC approach. The advantage of the approximative analytical treatment, which has a mean deviation of $\approx 3\%$ with respect to MCB, is its speed because it is about 500 times faster than MCB. With both codes photon spectra and polarisation prediction are reliably produced with a systematic error less than $2\%$ adding only a small contribution from photon polarisation to the systematic error of asymmetries.