Abstract
An R and D programme has been conducted in Belgium on the main waste streams arising from the operation of PWR power plants, in order to assay, both in a practical and reliable way, the concentrations of a number of longer-lived nuclides such as C-14, Ni-59, Ni-63, Sr-90, Nb-94, Tc-99, I-129, Cs-135, Cs-137 and the transuranium elements. The aim was to evaluate the possibility of deducing the concentrations of the longer-lived `critical` nuclides from the data on easily measurable `key` nuclides such as Co-60 and Cs-137, e.g. by gamma spectrometry on conditioned drums. As an additional verification, some of these conditioned drums were core drilled and the samples analyzed destructively. The conclusions of the investigations may be summarized as follows: for homogeneously embedded waste, the key nuclides Co-60 and Cs-137 can be assessed with satisfactory precision by gamma spectrometry; most of the critical nuclides can only be determined by destructive analysis after complex preparation of the waste samples; for I-129 and Tc-99, and to a lesser extent for Sr-90 and total alpha activity, the coherence of the results obtained so far is poor - further efforts are needed to improve the analytical methods for these elements; certain critical nuclides, such
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Van Iseghem, P;
Boden, R;
Daniels, A. Regge P. de;
Hurtgen, C;
Huys, D;
Klein, M;
Verrezen, F;
[1]
Deconinck, J M
[2]
- Centre d`Etude de l`Energie Nucleaire, Brussels (Belgium)
- Niras-Ondraf, Brussels (Belgium)
Citation Formats
Van Iseghem, P, Boden, R, Daniels, A. Regge P. de, Hurtgen, C, Huys, D, Klein, M, Verrezen, F, and Deconinck, J M.
Investigation on the determination of disposal critical nuclides in waste from PWR power plants. Task 3: characterization of radioactive waste forms. A series of final reports (1985-1989) - no.45.
CEC: N. p.,
1993.
Web.
Van Iseghem, P, Boden, R, Daniels, A. Regge P. de, Hurtgen, C, Huys, D, Klein, M, Verrezen, F, & Deconinck, J M.
Investigation on the determination of disposal critical nuclides in waste from PWR power plants. Task 3: characterization of radioactive waste forms. A series of final reports (1985-1989) - no.45.
CEC.
Van Iseghem, P, Boden, R, Daniels, A. Regge P. de, Hurtgen, C, Huys, D, Klein, M, Verrezen, F, and Deconinck, J M.
1993.
"Investigation on the determination of disposal critical nuclides in waste from PWR power plants. Task 3: characterization of radioactive waste forms. A series of final reports (1985-1989) - no.45."
CEC.
@misc{etde_10145012,
title = {Investigation on the determination of disposal critical nuclides in waste from PWR power plants. Task 3: characterization of radioactive waste forms. A series of final reports (1985-1989) - no.45}
author = {Van Iseghem, P, Boden, R, Daniels, A. Regge P. de, Hurtgen, C, Huys, D, Klein, M, Verrezen, F, and Deconinck, J M}
abstractNote = {An R and D programme has been conducted in Belgium on the main waste streams arising from the operation of PWR power plants, in order to assay, both in a practical and reliable way, the concentrations of a number of longer-lived nuclides such as C-14, Ni-59, Ni-63, Sr-90, Nb-94, Tc-99, I-129, Cs-135, Cs-137 and the transuranium elements. The aim was to evaluate the possibility of deducing the concentrations of the longer-lived `critical` nuclides from the data on easily measurable `key` nuclides such as Co-60 and Cs-137, e.g. by gamma spectrometry on conditioned drums. As an additional verification, some of these conditioned drums were core drilled and the samples analyzed destructively. The conclusions of the investigations may be summarized as follows: for homogeneously embedded waste, the key nuclides Co-60 and Cs-137 can be assessed with satisfactory precision by gamma spectrometry; most of the critical nuclides can only be determined by destructive analysis after complex preparation of the waste samples; for I-129 and Tc-99, and to a lesser extent for Sr-90 and total alpha activity, the coherence of the results obtained so far is poor - further efforts are needed to improve the analytical methods for these elements; certain critical nuclides, such as the corrosion products, correlate well with the key nuclides - for most of the measured fission products, clear correlations could not be established; on the basis of the activities measured, Ni-63, Ni-59, C-14, Tc-99, I-129 and total alpha appear to be important for the classification of the PWR wastes. 23 figs., 28 refs.}
place = {CEC}
year = {1993}
month = {May}
}
title = {Investigation on the determination of disposal critical nuclides in waste from PWR power plants. Task 3: characterization of radioactive waste forms. A series of final reports (1985-1989) - no.45}
author = {Van Iseghem, P, Boden, R, Daniels, A. Regge P. de, Hurtgen, C, Huys, D, Klein, M, Verrezen, F, and Deconinck, J M}
abstractNote = {An R and D programme has been conducted in Belgium on the main waste streams arising from the operation of PWR power plants, in order to assay, both in a practical and reliable way, the concentrations of a number of longer-lived nuclides such as C-14, Ni-59, Ni-63, Sr-90, Nb-94, Tc-99, I-129, Cs-135, Cs-137 and the transuranium elements. The aim was to evaluate the possibility of deducing the concentrations of the longer-lived `critical` nuclides from the data on easily measurable `key` nuclides such as Co-60 and Cs-137, e.g. by gamma spectrometry on conditioned drums. As an additional verification, some of these conditioned drums were core drilled and the samples analyzed destructively. The conclusions of the investigations may be summarized as follows: for homogeneously embedded waste, the key nuclides Co-60 and Cs-137 can be assessed with satisfactory precision by gamma spectrometry; most of the critical nuclides can only be determined by destructive analysis after complex preparation of the waste samples; for I-129 and Tc-99, and to a lesser extent for Sr-90 and total alpha activity, the coherence of the results obtained so far is poor - further efforts are needed to improve the analytical methods for these elements; certain critical nuclides, such as the corrosion products, correlate well with the key nuclides - for most of the measured fission products, clear correlations could not be established; on the basis of the activities measured, Ni-63, Ni-59, C-14, Tc-99, I-129 and total alpha appear to be important for the classification of the PWR wastes. 23 figs., 28 refs.}
place = {CEC}
year = {1993}
month = {May}
}