Abstract
Abstract
As part of an evaluation of gamma-ray spectra or other
spectra, the need to adapt the binning quasi-continuously may
arise. Often, the re-distribution of measured events to a new energy
scale may be required. The necessity to change the energy scale can
have several reasons. Frequently, a drift of the detector or the
amplifier leads to different energy scales of measured spectra in
time. In order to calculate difference spectra or sum spectra, the
energy axis and binning of all spectra has to be adapted. Moreover,
before a spectrum is unfolded, its energy axis also has to be
adapted to the energy scale of the response matrix. Widespread
commercial software packages, which are commonly used for the
analysis of spectra, do not include an algorithm which solves this
task. Three algorithms are presented in this work after shedding
light on the mathematical background. An analysis of the statistical
uncertainty of the counts of re-binned or remapped spectra completes
this paper.