37th Annual CNS Conference - 2017 June 04-07

Presented at:
37th Annual CNS Conference
2017 June 04-07
Niagara Falls
Session Title:
1B4 - Health, Environment & Spent Fuel / Waste Management (I)

A. Havenith (Aachen Institute for Nuclear Training GmbH)
J. Kettler (Advanced Nuclear Fuels GmbH)
K. Krycki (Aachen Institute for Nuclear Training GmbH)
H. Wiesel (Advanced Nuclear Fuels GmbH)
S. Wegener (AREVA GmbH)
W. Cooper (AREVA NP Canada)


The management and safe disposal of low and intermediate level radioactive waste requires knowledge of its inventory with regards to chemically toxic and non-toxic substances [1]. To avoid pollution of underground water reserves, the amount of chemotoxic inventory in a repository is restricted. Derived from this restriction the waste acceptance requirements of each repository define acceptable limits regarding the mass amount of chemically hazardous substances in single or multiple waste packages. In addition to the standard radiological characterization, every waste package has to be characterized with respect to its chemical composition to comply with these requirements.

In principle, hazardous substances may be quantified from traceability and quality controls performed during the waste production and conditioning processes. However, worldwide there are a lot of historical waste packages for which only poor or even no information or documentation is available. There is an increasing need for a retrospective characterization in order to fulfill the acceptance criteria for final disposal or a safe long time interim storage. The speaker will give an introduction to an innovative non-destructive method for multi-element detection based on prompt and delayed neutron activation analysis [2, 3]. This advanced technology offers a new methodology for the scanning of unopened waste packages and allows the identification as well as quantification of the waste matrix elements or hazardous substances.

Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.