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B.2 Geant4 101
The vectors of one event have the same length in all three branches,
connecting the vector components bijective with the other branches.
The scint64Scintillator houses the data of scintillators with the
scintillator ID 1-5, 10, 11 and 16-20. The scint64ScintillatorCube
data contains the scintillator IDs 6-9 and 12-15.
The kind of ionizing particle is important for the particle dependent
scintillator response. It determines the signal height and form of
the scintillation detector response. 99 % of all alpha particles in the
CsI scintillator can be identified with a pulse shape discrimination
[32]. The particle type information can therefore be used to veto the
majority of all alpha decays in the scintillator volume. In this package,
the quenching of the scintillation light output for alpha particles is also
considered and used a Birks factor of kB = 2.3 · 10 −3 gMeV −1 cm −2 as
reported by Tretyak [31]. At run time a for alpha particles, according
to their stopping power, reduced energy is added after each step to the
Hitscollection.