Abstract
A series of reference materials intended for use as activation or fission monitors for neutron fluence rate measurements has been prepared by the Joint Research Centre of the European Commission. Certification has been carried out by expert European laboratories and distribution of the certified reference materials (CRMs) is through the BCR programme of the Commission. The list (18 CRMs) includes materials to cover the complete energy spectrum, and suitable for different irradiation times. Fission monitors are 238UO2 or 237NpO2 in the form of microspheres. Activation monitors are high purity metals (Ni, Cu, Al, Fe, Nb, Rh, or Ti), certified for interfering trace impurities, or dilute aluminium-based alloys, where aluminium is chosen as a suitable matrix for reducing the neutron self-shielding effect. Newly certified materials are IRMM-530R Al-0.1%Au, replacing the exhausted IRMM-530 material, used as comparator for k 0-standardization, and three new Al-Co alloys (0.01-1%Co). Two others, in the process of certification are Al-0.1%Ag and Al-2%Sc for thermal and epithermal fluence rate measurements. Other candidate reference materials currently being certified are two uranium-doped glass intended for dosimetry by the fission-track technique.
Similar content being viewed by others
References
J. Pauwels, J. Van Audenhove, A. J. Fudge, Nucl. Instr. Meth. Phys. Res., A236 (1985) 600.
A. J. Fudge, J. Pauwels, J. Van Audenhove, Reactor Dosimetry: Methods, Applications and Standarization, ASTM STP 1001, American Society for Testing and Materials, Philadelphia, 1989, p. 627.
C. Ingelbrecht, F. Peetermans, J. Pauwels, Proc 7th ASTM-Euratom Symp. on Reactor Dosimetry, Strasbourg, August 1990, Kluwer Academic Publishers, Dordrecht 1992, p. 757.
K. Schulze, M. Krehl, Nucl. Instr. Meth. Phys. Res., A236 (1985) 609.
C. D. Ingelbrecht, F. W. Peetermans, S. Palmer, P. B. Robouch, Reactor Dosimetry, ASTM STP 1228, American Society for Testing and Materials, Philadelphia, 1994, p. 233.
J. Van Audenhove, J. Joyeux, Nucl. Instr. Meth., 19 (1966) 97.
C. Ingelbrecht, F. Peetermans, Nucl. Instr. Meth. Phys. Res., A334 (1993) 116.
C. Ingelbrecht, F. Peetermans, F. De Corte, A. De Wispelaere, C. Vandecasteele, E. Courtijn, P.D. Hondt, Nucl. Instr. Meth. Phys. Res., A303 (1991) 119.
C. E. Lyon, Nucl. Instr. Meth. Phys. Res., A236 (1985) 604.
M. Derbyshire, C. Ingelbrecht, F. De Corte, P. Van den Haute, J. Van Ham, Radiation Meas., in the press.
F. De Corte, F. Bellemans, P. Van den Haute, C. Ingelbrecht, C. Nicholl, Advances in Fission-Track Geochronology, Kluwer Academic Publishers, Dordrecht, 1998, p. 67.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ingelbrecht, C., Robouch, P. BCR certified reference materials for reactor neutron dosimetry. Journal of Radioanalytical and Nuclear Chemistry 257, 649–652 (2003). https://doi.org/10.1023/A:1026112815672
Issue Date:
DOI: https://doi.org/10.1023/A:1026112815672