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In-air PIXE analysis by means of glass capillary optics

✍ Scribed by Takuya Nebiki; M. Hasnat Kabir; Tadashi Narusawa

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
247 KB
Volume
249
Category
Article
ISSN
0168-583X

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✦ Synopsis

A novel technique to introduce high energy ion beams to atmospheric environment is presented, which enables in-air PIXE measurements. Slightly tapered glass capillary optics is applied to work as a differential pumping orifice as well as a focusing lens. The flux intensity is enhanced by at least one order of magnitude due to the focusing effect. Using capillaries of 10-20 lm outlet diameters, we obtain several hundreds pA of 4 MeV He 2+ ion beam and apply it to PIXE analysis of the seabed sludge without any sample treatments. A comparison of spectra between wet and dry sludge samples suggests the usefulness of our new technique.

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