Abstract:
The work is devoted to determining the response function of the detector NaI(Tl) for γ -quanta with
energy of 4.43 MeV, formed during inelastic scattering of neutrons with energy of 14.1 MeV on the nuclei
12 C. In gamma spectrometry, output pulses are recorded, the amplitudes of which are proportional to
the energy lost in the detection medium by incident photons. One of the main tasks of radiation
detection is to restore radiation characteristics from signals measured at the outputs of detectors. For
this, it is necessary to know, first of all, the general characteristics of detectors as converters of radiation
into signals. The main characteristic of the detector is its response function, which can be defined
as the probability that a particle with given properties generates a certain signal in the detector that
will be registered by the device. The article presents the results of modeling the response function
of a scintillation detector based on a NaI(Tl) crystal for gamma radiation from inelastic fast neutron
scattering in order to study the mechanism of its formation.
