Download Chapter 1 - Herschel

The glitches of the alpha particles do not differ significantly from the artificial glitches. Their width is
around 1-3 readouts and their signal is much higher than the average signal, so the nsigma method works
as well as expected. The proton tests have a distinctly different pattern. The glitches are much higher in
number and their width can also be large. The image shows, that increasing the wavelet scales from 6 to
12 leads to a better removal of the glitch structures. The problem in these measurements is that the
number of the glitches is so high, that a good estimate of the noise is hard to do. There is no pixel without
a glitch. Thus the estimated noise will be high and small glitches are not removed. Anyhow, experimenting
with the settings is in every case worth a try as the 12 wavelet scale inset shows.
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