@article{,
    author = {Reichart, Patrick; Dollinger, Günther; Bergmaier, Andreas; Datzmann, Gerd; Hauptner, Andreas; Körner, Hans-Joachim; Krücken, Reiner},
    title = {3D hydrogen microscopy with sub-ppm detection limit},
    editor = {},
    booktitle = {Proceedings of the Sixteenth International Conference on Ion Beam Analysis},
    series = {},
    journal = {Nuclear Instruments and Methods in Physics Research Section B},
    address = {},
    publisher = {},
    edition = {},
    year = {2004},
    isbn = {},
    volume = {},
    number =  {219-220 (1-4)},
    pages = {980-987},
    url = {http://www.sciencedirect.com/science/article/pii/S0168583X04002502},
    doi = {10.1016/j.nimb.2004.01.200},
    keywords = {Hydrogen analysis ; 3D hydrogen imaging ; Proton-proton scattering ; Proton microprobe ; Irradiation damage ; CVD diamond},
    abstract = {Coincident elastic proton-proton scattering at a 17 MeV microprobe is used to investigate hydrogen distributions on microscopic scale inside freestanding samples up to some 100 μm thickness. Hydrogen imaging at atomic ppm level needs a total count rate of about 100 kHz of scattered protons in order to get sufficient statistics from the small fraction of coincident hydrogen signals. It is obtained using a highly segmented silicon strip detector of 2.3 sr for proton currents of less than 100 pA impinging on films thicker 10 μm. A five level filter almost completely suppresses accidental coincidences. The sensitivity of this kind of 3D hydrogen microscopy is demonstrated by the analysis of a 55 μm thick synthetic diamond layer showing a detection limit of 0.08 at-ppm hydrogen. In addition, the proposed depth resolution of 3-6 μm is experimentally confirmed and a lateral resolution of 0.6 μm full width half maximum is obtained at a significant hydrogen enhancement inside the layer.},
    note = {},
    institution = {Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik, LRT 2 - Institut für angewandte Physik und Messtechnik, Professur: Dollinger, Günther},
    
    
}