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Novel Scintillation Detectors for Prompt Fission γ-Ray Measurements

Robert Billnert (Institutionen för fundamental fysik, Subatomär fysik) ; E. Andreotti ; F. -J. Hambsch ; M. Hult ; J. Karlsson ; G. Marissens ; Andreas Oberstedt (Institutionen för fundamental fysik, Subatomär fysik) ; S. Oberstedt
Physics Procedia; 1st Workshop on the Emission of Prompt Gamma-Rays in Fission, GAMMA-1 2012; Novi Sad; Serbia; 26 November 2012 through 4 December 2012; Code 123513 (1875-3884). Vol. 31 (2012), p. 29-34.
[Konferensbidrag, refereegranskat]

In this work we present first results from measurements of prompt fission γ-rays from the spontaneous fission in 252Cf. New and accurate data on corresponding γ-rays from the reactions 235U(nth,f) and 239Pu(nth,f) are highly demanded for the modeling of new Generation-IV nuclear reactor systems. For these experiments we employed scintillation detectors made out of new materials (LaBr3, LaCl3 and CeBr3), whose properties were necessary to know in order to obtain reliable results. Hence, we have characterized these detectors. In all the important properties these detectors outshine sodium-iodine detectors that where used in the 1970s, when the existing data had been acquired. Our finding is that the new generation of scintillation detectors is indeed promising, as far as an improved precision of the demanded data is concerned.

Nyckelord: Prompt fission γ-rays, 252Cf, Lanthanum-Chloride, Cerium-Bromide, Energy resolution, Timing resolution, Intrinsic peak efficiency



Denna post skapades 2013-01-14. Senast ändrad 2016-11-02.
CPL Pubid: 170568

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Fysik
Subatomär fysik
Kärnfysik
Acceleratorfysik och instrumentering

Chalmers infrastruktur