TY - JOUR
T1 - Stoichiometric characterisation of Y-Ba-Cu-O superconductors with nuclear probes
AU - Demortier, Guy
AU - Bodart, Franz
AU - Deconninck, Gaston Moss
AU - Terwagne, Guy
AU - Gabelica, Zelimir Robert
AU - Derouane, Eric
PY - 1988
Y1 - 1988
N2 - Nuclear probes using energetic (MeV range) charged particle irradiation and prompt detection of atomic and nuclear signals are powerful tools to determine quickly and accurately the chemical constituants of YBaCuO superconductors. PIXE in milliprobe geometry is used to determine the actual concentration ratios of Y/Ba and Cu/Ba, with an accuracy of 3% or better. Calculated matrix effects in the detection of characteristic K X-rays allow accurate determinations even when the composition of samples are very different from reference materials. RBS of 2 MeV α-particles is used to certify the homogeneity of the Y-Ba-Cu composition without reference material to a thickness of 250 μg/cm2 under the surface. Deuteron microbeam irradiation leads to simultaneous composition maps of all the elements (YBaCuO) in volume of 5 × 5 × 5 μm using X-rays and protons as identification signals.
AB - Nuclear probes using energetic (MeV range) charged particle irradiation and prompt detection of atomic and nuclear signals are powerful tools to determine quickly and accurately the chemical constituants of YBaCuO superconductors. PIXE in milliprobe geometry is used to determine the actual concentration ratios of Y/Ba and Cu/Ba, with an accuracy of 3% or better. Calculated matrix effects in the detection of characteristic K X-rays allow accurate determinations even when the composition of samples are very different from reference materials. RBS of 2 MeV α-particles is used to certify the homogeneity of the Y-Ba-Cu composition without reference material to a thickness of 250 μg/cm2 under the surface. Deuteron microbeam irradiation leads to simultaneous composition maps of all the elements (YBaCuO) in volume of 5 × 5 × 5 μm using X-rays and protons as identification signals.
U2 - 10.1016/0168-583X(88)90047-X
DO - 10.1016/0168-583X(88)90047-X
M3 - Article
SN - 0168-583X
VL - 30
SP - 491
EP - 496
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 3
ER -