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Radionuclides difficult to measure in waste packages. Final report

Abstract

In this study nuclide specific correlation analyses between key nuclides that can be easily measured and nuclides that are difficult to measure are presented. Data are taken from studies and data compilations from various countries. The results of this study can serve to perform assays of the nuclide specific radionuclide contents in waste packages by gamma measurements of {sup 60}Co and {sup 137}Cs and calculation of the contents of other nuclides via the correlation analyses, sometimes referred to as `scaling factor method`. It can thus be avoided to have to take samples from the waste for separate analysis. An attempt is made to also investigate the physical and chemical backgrounds behind the proposed correlations. For example, a formation pathway common to the two nuclides to be correlated can be regarded as an explanation, if a good correlation is found. On the other hand, if the observed correlation is of poor quality, reasons may possibly lie in different behaviour of the two nuclides in the water system of the nuclear plant. This implies not only chemical solubility, transfer constants etc. in the water system, which would not only affect the proportionality between the two nuclides, but a different behavior in different  More>>
Authors:
Thierfeldt, S; Deckert, A [1] 
  1. Brenk Systemplanung, Aachen (Germany)
Publication Date:
Nov 01, 1995
Product Type:
Technical Report
Report Number:
NEI-SE-220
Reference Number:
SCA: 052000; PA: AIX-27:026366; EDB-96:058106; NTS-96:016893; SN: 96001563846
Resource Relation:
Other Information: PBD: Nov 1995
Subject:
05 NUCLEAR FUELS; BWR TYPE REACTORS; RADIOACTIVE WASTE MANAGEMENT; RADIOACTIVE WASTES; PWR TYPE REACTORS; AMERICIUM 241; CALCIUM 41; CARBON 14; CESIUM 135; CHLORINE 36; GAMMA SPECTROSCOPY; IODINE 129; MOLYBDENUM 93; NEPTUNIUM 237; NICKEL 59; NICKEL 63; PLUTONIUM 238; PLUTONIUM 239; PLUTONIUM 240; PLUTONIUM 241; RADIOACTIVITY; RADIOISOTOPES; STRONTIUM 90; TECHNETIUM 99; TRITIUM; URANIUM 234
OSTI ID:
202958
Research Organizations:
Swedish Nuclear Power Inspectorate, Stockholm (Sweden); Swedish Radiation Protection Inst., Stockholm (Sweden); Swedish Nuclear Fuel and Waste Management Co., Stockholm (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ON: DE96618432; CNN: SSI-P-782.93; TRN: SE9600021026366
Availability:
INIS; OSTI as DE96618432
Submitting Site:
SWDN
Size:
132 p.
Announcement Date:

Citation Formats

Thierfeldt, S, and Deckert, A. Radionuclides difficult to measure in waste packages. Final report. Sweden: N. p., 1995. Web.
Thierfeldt, S, & Deckert, A. Radionuclides difficult to measure in waste packages. Final report. Sweden.
Thierfeldt, S, and Deckert, A. 1995. "Radionuclides difficult to measure in waste packages. Final report." Sweden.
@misc{etde_202958,
title = {Radionuclides difficult to measure in waste packages. Final report}
author = {Thierfeldt, S, and Deckert, A}
abstractNote = {In this study nuclide specific correlation analyses between key nuclides that can be easily measured and nuclides that are difficult to measure are presented. Data are taken from studies and data compilations from various countries. The results of this study can serve to perform assays of the nuclide specific radionuclide contents in waste packages by gamma measurements of {sup 60}Co and {sup 137}Cs and calculation of the contents of other nuclides via the correlation analyses, sometimes referred to as `scaling factor method`. It can thus be avoided to have to take samples from the waste for separate analysis. An attempt is made to also investigate the physical and chemical backgrounds behind the proposed correlations. For example, a formation pathway common to the two nuclides to be correlated can be regarded as an explanation, if a good correlation is found. On the other hand, if the observed correlation is of poor quality, reasons may possibly lie in different behaviour of the two nuclides in the water system of the nuclear plant. This implies not only chemical solubility, transfer constants etc. in the water system, which would not only affect the proportionality between the two nuclides, but a different behavior in different parts of the water system must be assumed (e.g. different filter efficiencies etc). 47 refs, 57 figs, 40 tabs.}
place = {Sweden}
year = {1995}
month = {Nov}
}