Verification of Response of Neutron Monitor for In-Flight Neutron Dosimetry

Authors

  • Claudio Antonio Federico Institute for Advanced Studies
  • Odair Lelis Gonçales Instituto de Estudos Avançados/São José dos Campos/SP
  • Evaldo Simões da Fonseca Instituto de Radioproteção e Dosimetria- Rio de Janeiro/RJ
  • Karla Cristina de Souza Patrão Instituto de Radioproteção e Dosimetria- Rio de Janeiro/RJ
  • Marlon Antonio Pereira Instituto de Estudos Avançados/São José dos Campos/SP
  • Linda Viola Ehlin Caldas Instituto de Pesquisas Energéticas e Nucleares/São Paulo/SP

Keywords:

Radiation dose, Aircrew, Neutron dose

Abstract

http://dx.doi.org/10.5028/jatm.v5i3.222

In this work, we present the results of verification of special neutron monitoring equipment for use in aircrew dosimetry inside aircraft. The equipment was precalibrated with conventional neutron sources in a National Standard Laboratory of the Institute for Radioprotection and Dosimetry (IRD, Brazil) and verified in a Cosmic Energy Reference Field

(CERF), a special field from CERN (Centre Européan de Recherche Nucléaire), a facility that reproduces the shape of neutron field encountered in the atmosphere at aircraft altitudes. The equipment consists of a special neutron probe from Thermo Scientific with response up to 5 GeV neutrons and was verified with respect to ambient dose equivalent rate linearity and angular incidence. The results show the

adequacy of the equipment for this type of measurement and the feasibility to use conventional neutron sources to calibrate this specific equipment, in the absence of access to the CERF field.

Author Biography

Claudio Antonio Federico, Institute for Advanced Studies

Applied Physics Division

Researcher

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Published

2013-08-27

Issue

Section

Original Papers