Measurement and unfolding of neutron spectra using Bonner spheres Esposito, A. [Radiation Protection Group, INFN-LNF, Via Enrico Fermi 40, 00044 Frascati (Italy)]; Nandy, M. [Radiation Protection Group, INFN-LNF, Via Enrico Fermi 40, 00044 Frascati (Italy)]; Saha Inst. of Nuclear Physics, Kolkata 700064 (India)] 07 ISOTOPES AND RADIATION SOURCES; 61 RADIATION PROTECTION AND DOSIMETRY; AMERICIUM; BERYLLIUM; CALIFORNIUM 252; CHEMICAL REACTIONS; COMPARATIVE EVALUATIONS; COMPUTER CODES; DEUTERIUM; FEASIBILITY STUDIES; HUMAN POPULATIONS; NEUTRON DOSIMETRY; NEUTRON SPECTRA; NEUTRONS; RADIATION DETECTORS; RADIATION PROTECTION; RISK ASSESSMENT; TRITIUM Neutron spectra from Am-Be, {sup 252}Cf sources and {sup 2}H + {sup 2}H and {sup 2}H + {sup 3}H reactions have been measured using a Bonner sphere system in conjunction with a 4 x 4 mm{sup 2} 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) Available from doi: http://dx.doi.org/10.1093/rpd/nch385 United Kingdom 2004-07-01 English Journal Article Conference Journal Name: Radiation Protection Dosimetry; Journal Volume: 110; Journal Issue: 1-4; Conference: 9. Symposium on Neutron Dosimetry - Advances in nuclear particle dosimetry for radiation protection and medicine, Delft (Netherlands), 28 Sep - 3 Oct 2003; Other Information: Country of input: France; 5 refs. Medium: X; Size: page(s) 555-558 https://doi.org/10.1093/RPD/NCH385 [] 1-4 110 Journal ID: ISSN 0144-8420; TRN: GB13V1687061951 INIS 2013-07-18 22104130