title: Measurement and unfolding of neutron spectra using Bonner spheres.
abstract: Neutron spectra from Am-Be, 252Cf sources and 2H + 2H and 2H + 3H reactions have been measured using a Bonner sphere system in conjunction with a 4 x 4 mm2 LiI(Eu) detector, and unfolded using the two codes BUNKI and MAXED. The BON unfolding algorithm is used with BUNKI. It has been observed that end test percentage between 1 and 3 and smoothing factor between 0.05 and 0.1 are optimal choices for the BUNKI code. A temperature parameter 1.0 is used for MAXED. Comparison with standard spectra shows that the shape of the spectra is fairly well reproduced. A coupling between the two codes is made and the solution spectrum from BUNKI is used as the default spectrum in MAXED.
authors.affiliation: Radiation Protection Group, INFN-LNF, via Enrico Fermi 40, 00044 Frascati, Italy. Adolfo.Esposito@lnf.infn.it
authors.forename: Adolfo
authors.initials: A
authors.lastname: Esposito
authors.forename: Maitreyee
authors.initials: M
authors.lastname: Nandy
mesh_terms: D000465:Algorithms; D001822:Body Burden; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods*; D005240:Feasibility Studies; D006801:Humans; D007558:Italy; D018499:Linear Energy Transfer; D009502:Neutrons; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D011874:Radiometry / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods* / Q000592:standards; D012307:Risk Factors; D012680:Sensitivity and Specificity; D013057:Spectrum Analysis / Q000295:instrumentation / Q000379:methods* / Q000592:standards