In a recent experiment, performed at the 10 MW research reactor at the Institute of
Isotopes (IKI) in Budapest, the emission of prompt γ-rays from the cold-neutron induced
fission of 236U* was measured. For that purpose four cerium-doped lanthanum
halide scintillation detectors were employed and found very useful in order to distinguish
between γ-rays from different reactions. Although data analysis is not completed yet,
we could show that these novel detectors indeed provide the means towards new and
more precise input data necessary for the modeling of γ-heating in nuclear reactors.