TY - JOUR
T1 - Using synthetic multi-element standards (SMELS) for calibration and quality control of the irradiation facilities in the BR1 reactor
AU - Vermaercke, Peter
AU - Robouch, P.
AU - Sneyers, Liesel
AU - De Corte, F.
A2 - Bruggeman, Michel
N1 - Score = 10
PY - 2008/1
Y1 - 2008/1
N2 - The thermal to epithermal neutron flux ratio (f) and the deviation of the epithermal neutron spectrum from the 1/E shape (α) are essential parameters for the correct application of k 0-standardized neutron activation analysis. Several methods are applied for the determination of f and α. They are based on Cd-covered multi-monitor or on bare-irradiations methods. The recently developed and characterized synthetic multi-element standards (SMELS) were designed as a validation tool for the proper implementation of the k 0-NAA method in a laboratory. In particular, SMELS Type III contains Au and Zr, thus allowing the direct determination of f and α. It could, therefore, replace the traditional flux monitors. Furthermore, it could be used as a quality control material to monitor the stability of the irradiation facility and the detector. This paper presents the accuracy of the f and α determination and the feasibility of quality control using SMELS for irradiation channel Y4 of the BR1 reactor.
AB - The thermal to epithermal neutron flux ratio (f) and the deviation of the epithermal neutron spectrum from the 1/E shape (α) are essential parameters for the correct application of k 0-standardized neutron activation analysis. Several methods are applied for the determination of f and α. They are based on Cd-covered multi-monitor or on bare-irradiations methods. The recently developed and characterized synthetic multi-element standards (SMELS) were designed as a validation tool for the proper implementation of the k 0-NAA method in a laboratory. In particular, SMELS Type III contains Au and Zr, thus allowing the direct determination of f and α. It could, therefore, replace the traditional flux monitors. Furthermore, it could be used as a quality control material to monitor the stability of the irradiation facility and the detector. This paper presents the accuracy of the f and α determination and the feasibility of quality control using SMELS for irradiation channel Y4 of the BR1 reactor.
KW - k0-NAA synthetic multi-element standards BR1
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_89105
UR - http://knowledgecentre.sckcen.be/so2/bibref/5022
U2 - 10.1007/s10967-007-0439-z
DO - 10.1007/s10967-007-0439-z
M3 - Article
SN - 0236-5731
VL - 276
SP - 235
EP - 241
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
IS - 1
ER -