Identification of prompt fission with lanthanum-chloride scintillation detectors
Artikel i vetenskaplig tidskrift, 2012

In this paper we demonstrate the employment of LaCl3:Ce scintillation detectors for the identification of prompt fission γ-rays from γ-radiation in contrast to other reactions. We present the properties of cylindrical 1.5 in.×1.5 in. detectors in terms of intrinsic activity, energy resolution, intrinsic full peak efficiency and intrinsic timing resolution. In addition, we show results from the measurement of γ-rays emitted in coincidence with the spontaneous fission of 252Cf, which lead us to the conclusion that the properties of the detectors used in this work, in particular the good timing resolution and a reasonably good energy resolution, are more than just sufficient for the assessment of prompt γ-heat in future nuclear reactors as requested by the OECD. Hence, in our opinion, LaCl3:Ce detectors, compared to those made out of LaBr3:Ce crystals, represent an appropriate and quasi low-cost choice for the above mentioned applications.

Timing resolution

Prompt fission γ- rays

Energy resolution

Scintillation detector

Lanthanum chloride



Andreas Oberstedt

Chalmers, Teknisk fysik, Subatomär fysik

S. Oberstedt

Robert Billnert

Chalmers, Teknisk fysik, Subatomär fysik

W. Geerts

F. -J. Hambsch

J. Karlsson

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

0168-9002 (ISSN)

Vol. 668 14--20-


Acceleratorfysik och instrumentering

Subatomär fysik



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