@misc{oai:repo.qst.go.jp:00068004,
 author = {Imaseki, Hitoshi and Ishikawa, Takahiro and Iso, Hiroyuki and Shinomiya, Takayuki and Hamano, Tsuyoshi and Yukawa, Masae and 今関 等 and 石川 剛弘 and 四野宮 貴幸 and 濱野 毅 and 湯川 雅枝},
 month = {Jan},
 note = {Behaviour of radionuclides in the environment and organisms has been investigated to evaluate the radiation effect on human using stable isotopes using PIXE analysis at the PASTA facilities in the NIRS. Since some of the environmental monitoring samples are in the liquid state, pre-treatment of the samples such as filtration, drying and solidification are necessary prior to the PIXE analysis. During sample preparation process, there may be loss of element due to sublimation or evaporation that must be taken care for quantitative analysis. To avoid such problems, we have developed a suitable dropletPIXE system. It is based on the following points,(i) development of equipment with a good stability to supply a droplet of good reproducibility, (ii) optimisation of all equipments that includes a stable beam line (proton, 2.8MeV) and (iii) to evaluate irradiation dose for quantitative analysis. It will be advantageous to many researchers since it is very simple and save time during the sample preparation. However, there are some disadvantages in the detection range compared to conventional PIXE. The droplet-PIXE system has been applied to a few case studies. Limits of detection with or without any chemical preparation and its superiority or advantages over other PIXE system will be discussed in this paper. Application of the droplet-PIXE system can be expanded in future to other possibilities., 5th International Symposium on BioPIXE},
 title = {Development of Droplet-PIXE system for Environmental Monitoring Samples},
 year = {2005}
}