The lecture will cover the state of two NaI(Tl) gamma-ray multidetector systems. It will discuss their past use and potential future applications for conducting experiments for studying the neutron-induced fission and capture reactions and determining the elemental composition of various materials and complex substances using the IREN Neutron Time-of-Flight Spectrometer.

The lecture will focus only on two different configurations of NaI(Tl) scintillation gamma-ray detectors, distinguished by different “romashka” (daisy) type geometries.

This info-lecture is dedicated to the memory of esteemed scientific leaders, teachers, and remarkable neutron and nuclear physicists: Professor, Doctor of Physics and Mathematics Natalia B. Yaneva and Professor, Doctor of Physics and Mathematics Alexander A. Lukyanov.