Regarding action levels for contamination by alpha and beta emitting radionuclides.

Today, there exist a number of different international documents, regulating both civilian and military operations, which present action levels regarding contamination of alpha- and/or beta-emitting radionuclides. There are, however, inconsistencies among the action levels suggested in different documents, which can be explained only in part by differences in their intended use. Many of the suggested action levels are calculated using conservative estimates.

On the categorization of uranium materials using low resolution gamma ray spectrometry.

In order to characterize uranium materials during e.g. nuclear safeguards inspections and in initial stages of nuclear forensic investigations, hand-held low resolution gamma ray detection instruments with automatic uranium categorization capabilities may be used.