The effect of graphite thermal column around the newly designed large irradiation channel of GHARR-1 on neutron flux distribution

Asamoah, Moses Kumi; Gyampo, O.; Nyarko, B.J.B.; Akaho, E.H.K.

doi:10.1016/j.anucene.2011.11.019

Cited by 2 publications

(1 citation statement)

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“…Several studies have been performed to evaluate the effect of graphite on neutron flux distribution and effect of different cross-section data sets on reflectors of a typical material test research reactor as graphite reflector. A thickness of 32cm of graphite was selected as effective thickness of graphite reflector for ENDF library used in calculations [5], [6]. Keff value measurement in nuclear reactors strongly depends of the number of reflector elements in the core, and also the reflector assembly thick that surrounds the reactor core.…”

Section: [A]mentioning

confidence: 99%

Effect of graphite reflector on the neutronic parameters of the TRIGA Mark II research reactor

Mghar¹,

Chetaine²

2015

astp

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The measurement of neutronic parameters in nuclear reactors has an important influence on control and safety of nuclear reactor. The effective multiplication factor (keff) is the most important neutronic parameter for determining the state of reactor. This parameter strongly depends of the reflector elements loaded in the reactor core and the outer reflector thickness that surrounds the core. The main purpose of this work is using the Monte Carlo simulation via the MCNP5 code to evaluate the reflector effect of the Moroccan TRIGA Mark-II research reactor on the keff value. For this goal, the geometrical structure of the reactor and the fuel configuration were designed. The MCNP5 calculations of keff parameter of the reactor varying with reflector thickness have been performed. The obtained results are analysed and discussed.

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Section: [A]mentioning

confidence: 99%