SEDL / STP / STP1398-EB / STP13581S

Improved Evaluation of the Atucha-I Ex-Vessel Dosimetry

Albornoz, AF
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Blaumann, H
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Lopasso, EM
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Blanco, A
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Gennuso, G
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Serra, O
Research staff, Física de Reactores Avanzados, Centro Atómico Bariloche, San Carlos de Bariloche,Río Negro

Pages: 8    Published: Jan 2001

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Source: STP1398-EB

Abstract

A re-evaluation of the first ex-vessel dosimetry experiment at CNA-I was performed. The activation dosimeters were irradiated at the cavity behind the RPV during 1994–1995. This study differs from the previous one [1] in the calculation tools employed, as well as in some of the input data needed to perform the calculations. As a result, consolidated neutron spectra at the dosimeters' position were obtained. The possible reasons of disagreement in the calculated C/M ratios were analyzed and their impact was quantified. Lessons learned from this study were used to design a new ex-vessel experiment that will be developed next year.

Keywords:
PHWR, pressure vessel, ex-vessel dosimetry, neutron transport calculation, spectrum adjustment

Paper ID: STP13581S
Committee/Subcommittee: E10.01
DOI: 10.1520/STP13581S
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