Characterisation of the IRSN CANEL/T400 facility producing realistic neutron fields for calibration and test purposes.
The new CANEL/T400 facility has been set-up at the Institute for Radiological Protection and Nuclear Safety (IRSN) to produce a realistic neutron field. The accurate characterisation of this neutron field is mandatory since this facility will be used as a reference neutron source. For this reason an international measuring campaign, involving four laboratories with extensive expertise in neutron metrology and spectrometry, was organised through a concerted EUROMET project. Measurements were performed with Bonner sphere (BS) systems to determine the energy distribution of the emitted neutrons over the whole energy range (from thermal energy up to a few MeV). Additional measurements were performed with proton recoil detectors to provide detailed information in the energy region above 90 keV. The results obtained by the four laboratories are in agreement with each other and are compared with a calculation performed with the MCNP4C Monte-Carlo code. As a conclusion of this exercise, a reliable characterisation of the CANEL/T400 neutron field is obtained.
Gressier
V
V
Institut de radioprotection et de sûreté nucléaire, BP 3, 13115 Saint-Paul-lez-Durance, France. Vincent.Gressier@irsn.fr
Lacoste
V
V
Lebreton
L
L
Muller
H
H
Pelcot
G
G
Bakali
M
M
Fernández
F
F
Tómas
M
M
Roberts
N J
NJ
Thomas
D J
DJ
Reginatto
M
M
Wiegel
B
B
Wittstock
J
J
D000465:Algorithms; D001822:Body Burden; D002138:Calibration / Q000592:standards*; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods / Q000592:standards*; D005060:Europe; D005240:Feasibility Studies; D006801:Humans; D009502:Neutrons; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012015:Reference Standards; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods / Q000592:standards; D012307:Risk Factors; D012680:Sensitivity and Specificity