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Neutronic studies for the second Egyptian research reactor ET-RR-2

  • N. Ashoub

    Associate Prof. Dr. Nageib Ashoub, Reactor Physics Department, Nuclear Research Center, Atomic Energy Athority, Cairo, Egypt

    and E. Amin

    Prof. Dr. Esmat Amin, National Center for Nuclear Safety and Radiation Control, AEA, Cairo, Egypt

Published/Copyright: March 14, 2022
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Abstract

The start up physics studies SPS of the Second Egyptian Research Reactor is presented in this work. The SPS consists of the approach to criticality, the power and flux distribution of the first critical core, criticality, power and flux distribution of the working core. The working core is the beryllium-reflected core with cobalt loaded for irradiation. Some of the neutronic parameters are determined, these parameters are the power peaking factor, power distribution, the excess reactivity for both the water and beryllium reflector cores, the core excess reactivity with the cobalt loaded, the reactivity worth of the cobalt irradiation box. Flux distribution for one fast, three eipthermal and one thermal energy group are also determined. All the above neutronic parameters are calculated by using the lattice cell code WIMSD4 and the two dimensional diffusion code DIXY2.

Abstract

In diesem Artikel wird über erste Messungen am zweiten ügyptischen Forschungsreaktor ET-RR-2 berichtet. Diese beinhalten Leistungs- und Neutronenmessungen bei der erstmaligen Beladung des Kerns zum Erreichen der Kritikalitüt sowie entsprechende Messungen beim eigentlichen Reaktorbetrieb. Im Routinebetrieb ist der Kern von einem Berylliumreflektor umgeben und mit Einrichtungen zur Bestrahlung von Kobalt ausgestattet. Wichtige Betriebsparameter wie die Spitzenleistung, die Leistungsverteilung, die Überschussreaktivitüt mit und ohne Berylliumreflektor sowie mit und ohne Kobaltbeladung wurden bestimmt. Zusätzlich wurden die Neutronenflussdichten für schnelle und thermische Neutronen sowie für drei Gruppen epithermischer Neutronen gemessen. Diese Messungen werden verglichen mit entsprechenden Berechnungen, die mit dem Gitterzellen-Code WIMSD4 und dem zweidimensionalen Diffusions-Code DI-XY2 durchgeführt wurden.

About the authors

Associate Prof. Dr. N. Ashoub

Associate Prof. Dr. Nageib Ashoub, Reactor Physics Department, Nuclear Research Center, Atomic Energy Athority, Cairo, Egypt

Prof. Dr. E. Amin

Prof. Dr. Esmat Amin, National Center for Nuclear Safety and Radiation Control, AEA, Cairo, Egypt

References

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Received: 2000-08-21
Published Online: 2022-03-14

© 2001 Carl Hanser Verlag, München

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