Method to evaluate the L/D Ratio of Neutron Imaging Beams

Authors

  • Reynaldo Pugliesi Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, Brasil
  • Marco A. Stanojev Pereira Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, Brasil
  • Roberto Mauro Schoueri Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, Brasil

DOI:

https://doi.org/10.15392/bjrs.v5i1.257

Keywords:

neutron imaging, neutron tomography, L/D ratio

Abstract

An alternative simple method to evaluate the L/D ratio of neutron imaging beams is proposed. It is based on the behavior of the ratio “x/Ut”, which asymptotically tends to L/D for large values of the parameter “x”, that corresponds to the distance separating, a gadolinium test object to the scintillator plane, where its image is formed. The method was applied to the neutron imaging equipment of the Nuclear and Energy Research Institute IPEN-CNEN/SP and the obtained result was L/D = (104 ± 4). The consistency of the proposed method was verified by comparing this value, with those ones obtained by a well - known and established procedure.

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References

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Published

2017-04-06

How to Cite

Pugliesi, R., Pereira, M. A. S., & Schoueri, R. M. (2017). Method to evaluate the L/D Ratio of Neutron Imaging Beams. Brazilian Journal of Radiation Sciences, 5(1). https://doi.org/10.15392/bjrs.v5i1.257

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