  Auger electrons emitted after nuclear decay have potential application in
targeted cancer therapy. For this purpose it is important to know the Auger
electron yield per nuclear decay. In this work we measure the ratio of the
number of conversion electrons (emitted as part of the nuclear decay process)
and the number of Auger electrons (emitted as part of the atomic relaxation
process after the nuclear decay) for the case of $^{125}$I. Results are
compared with Monte-Carlo type simulations of the relaxation cascade using the
BrIccEmis code. With the appropriate choice of parameters this program
describes the observed spectra quite well over the whole energy range.
