Title: Development of Digital Technique for the Determination of Fission Fragments and Emitted Prompt Neutron Characteristics.
Authors: VARAPAI N.HAMBSCH FRANZ-JOSEFOBERSTEDT STEPHANSEROT OlivierBARREAU GerardKORNILOV NikolaiZEINALOV Shakir
Citation: AIP Conference Proceedings vol. 798 p. 369-372
Publisher: American Institute of Physics
Publication Year: 2006
JRC N°: JRC34249
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC34249
Type: Contributions to Conferences
Abstract: In recent years digital processing technology is slowly replacing traditional analogue techniques. The main advantage is the digitalization of the signal shape which contains all the information on the particle, i.e. kinetic energy, emission angle and mass. This information is actually determined off-line by digital signal processing and opens up the possibility to modify the analysis procedure without repeating the experiment. In the present work the digital signal processing technique is implemented for measurement of emitted prompt neutrons in coincidence with fission fragments. A double Frisch-gridded ionization chamber is used as fission fragment detector. The emitted prompt neutrons are detected by a NE213 based liquid scintillator detector from CEN Bordeaux Gradignan. The neutron energy is determined by the time-of-flight technique. Both the ionization chamber and neutron detector digitized signals are stored for further off-line analysis. A specialized data analysis program has been develop to treat the experimental data. The experimental set up is intalled at the Institute for Reference Materials and Measurements (IRMM, Geel, Belgium) To test the digital technique and to verify the method of off-line analysis a 252Cf(sf) source is used since here both the fission fragment and the prompt emitted neutron properties are well known from literature.
JRC Institute:Institute for Reference Materials and Measurements

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