Three-dimensional imaging of aerosol particles with scanning proton microprobe in a confocal arrangement

Journal Article · Mon Sep 01 04:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2976163· OSTI ID:21175556

Zitnik, M; Pelicon, P ^[1]; Grlj, N ^[2]; Karydas, A G; Sokaras, D ^[3]; Schuetz, R; Kanngiesser, B ^[4]

---

1. Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana (Slovenia)
2. Primorska Institute for Natural Science and Technology, Muzejski trg 2, SI-6000 Koper (Slovenia)
3. Institute of Nuclear Physics, NCSR 'Demokritos', GR-15310 Athens (Greece)
4. Institute of Optics and Atomic Physics, Technical University of Berlin, D-10623 Berlin (Germany)

We have reconstructed three-dimensional (3D) element-specific distributions of aerosol microparticles captured in a thick quartz filter. The characteristic x rays were induced by a proton microprobe and detected by a Si(Li) spectrometer equipped with a polycapillary lens. Combining a fine microbeam scanning in the lateral plane with the sample movement parallel to the beam axis, the aerosol particles were driven across the sensitive microvolume and for Fe, Ca, S, and Si a sequence of two-dimensional lateral x-ray images was recorded. This is the first example of an x-ray element selective 3D imaging of a few micrometer sized objects with a proton beam.

• OSTI ID: 21175556
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 9 Vol. 93; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AEROSOLS
IMAGE PROCESSING
LENSES
MICROSCOPY
PROTON BEAMS
PROTONS
QUARTZ
SPECTROMETERS
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
X RADIATION