Dosimetry characteristics of coupled fast-thermal-core HERBE

Milan Pesic; Miodrag Milosevic; Sava Milovanovic

doi:10.1117/12.267921

27 February 1997 Dosimetry characteristics of coupled fast-thermal-core HERBE

Milan Pesic, Miodrag Milosevic, Sava Milovanovic

Proceedings Volume 2867, International Conference Neutrons in Research and Industry; (1997) https://doi.org/10.1117/12.267921
Event: Fifth International Conference on Applications of Nuclear Techniques: Neutrons in Research and Industry, 1996, Crete, Greece

Abstract

The 'HERBE' is new coupled fast-thermal core, designed in 1991, at the 'RB' reactor in the 'Vinca' Institute. It is used for verification of designed oriented computer codes developed in the Institute, training and sample irradiation in fast neutron field. For the last purpose a vertical experimental channel (VCH) is placed in the central axis of the fast core. Neutron spectrum in the center of the VCH is calculated in 44 energy groups. Space distributions of two energy group neutron flux in the 'HERBE' are measured using gold foils and converted into the neutron absorbed dose using group flux-dose conversion factors. Gamma absorption doses in the air in the center of the VCH are measured using calibrated small ionization chamber filed with air. Determined dose rates are related to the reactor power. The first preliminary irradiations of silicon diodes in the center of the VCH of the 'HERBE' fast core are carried out in 1994 and 1995. This paper describes calculation methods and measurement techniques applied to determination of the irradiation performance and dosimetry characteristics of the 'HERBE' system.

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Milan Pesic, Miodrag Milosevic, and Sava Milovanovic "Dosimetry characteristics of coupled fast-thermal-core HERBE", Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); https://doi.org/10.1117/12.267921

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KEYWORDS

Absorption

Calibration

Gold

Information operations

Computing systems

Error analysis

Tissues

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