PUGLIESI, R.PEREIRA, M.A.S.SCHOUERI, R.M.2017-09-272017-09-272017PUGLIESI, R.; PEREIRA, M.A.S.; SCHOUERI, R.M. Method to evaluate the L/D ratio of neutron imaging beams. <b>Brazilian Journal of Radiation Sciences</b>, v. 5, n. 1, p. 01-07, 2017. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v5i1.257">10.15392/bjrs.v5i1.257</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/27798.2319-0612http://repositorio.ipen.br/handle/123456789/27798An 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 IPENCNEN/ 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.01-07openAccessbeamsdigital systemsimagesneutron fluxneutronsspatial resolutiontomographybrazilbrazilArtigo de periódico1510.15392/bjrs.v5i1.257Sem Percentil