title: A realistic field facility to simulate reactor spectra.
abstract: The design construction and characterisation of a simulated realistic neutron workplace field is described. Utilising a low-energy primary source of neutrons based on the 7Li(p,n) reaction, and a heavy water moderator, a broad spectrum is produced with energies extending from thermal to about 1 MeV. The field simulates the type of spectra encountered around UK gas-cooled reactors.
authors.affiliation: National Physical Laboratory, Teddington, Middlesex, TW11 0LW, UK. graeme.taylor@npl.co.uk
authors.forename: G C
authors.initials: GC
authors.lastname: Taylor
authors.forename: D J
authors.initials: DJ
authors.lastname: Thomas
authors.forename: A
authors.initials: A
authors.lastname: Bennett
mesh_terms: D001822:Body Burden; D002138:Calibration / Q000592:standards; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000295:instrumentation / Q000379:methods / Q000592:standards*; D038622:Internationality; D009502:Neutrons; D009688:Nuclear Reactors; D016273:Occupational Exposure / Q000032:analysis; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D011868:Radioisotopes / Q000032:analysis; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012015:Reference Standards; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D006113:United Kingdom
chemical_list: D011868:Radioisotopes