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Title (Primary) Localisation and identification of radioactive particles in solid samples by means of a nuclear track technique
Author Boehnke, A.; Treutler, H.-C.; Freyer, K.; Schubert, M.; Weiss, H.;
Journal Radiation Measurements
Year 2005
Department ANA; GWS;
Volume 40
Issue 2-6
Language englisch;
Keywords CR-39 solid-state nuclear track detector; Alpha-emitting radionuclides; Industrial dust; Autoradiography
Abstract This study is aimed to develop a generally applicable methodology of investigation that can be used for the localisation of single alpha-active particles in solid samples, such as industrial dust or natural soils, sediments and rocks by autoradiography using solid-state nuclear track detectors. The developed technique allows the detection of local enrichments of alpha-emitters in any solid material. The results of such an investigation are of interest from technical, biological and environmental points of view. The idea behind the methodology is to locate the position of alpha-active spots in a sample by attaching the track detector to the sample in a defined manner, thoroughly described in the paper. The located alpha-active particles are subsequently analysed by an electron microscope and an electron microprobe. An example of the application of this methodology is also given. An ultra-fine -grained ore-processing residue, which causes serious environmental pollution in the respective mining district and thus limits possible land use and affects quality of life in the area, was examined using the described technique. The investigation revealed considerable amounts of alpha-active particles in this material.
ID 3226
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3226
Boehnke, A., Treutler, H.-C., Freyer, K., Schubert, M., Weiss, H. (2005):
Localisation and identification of radioactive particles in solid samples by means of a nuclear track technique
Radiat. Meas. 40 (2-6), 650 - 653