Ion Beams and X-rays for Applications at NCSR

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Ion Beams and X-rays for Applications at NCSR
Demokritos (ALIX)
A.G Karydas Institue of Nuclear Physics
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Analytical Laboratory of Ion Beam and X-Ray
Physics Infrastructure, 5.5 MV VdG Tandem

• Experimental set-ups
• 4-axis goniometer (RBS, NRA, Channeling)
• PIXE-PIGE-RBS chamber
• PIXE Induced XRF chamber
• Large chamber for particle spectroscopy

?-ray Spectroscopy - Four (4) HP(Ge)
detectors - Two (2) Ge(Li) detectors
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Analytical Laboratory of Ion Beam and X-Ray
Physics
Infrastructure X-ray Instrumentation

• X-ray sources
• Diffraction Mo anode tube (3 KW)
• Rh air-cooled low power tube (50 W)
• Radioactive annular/point sources
• X-ray detectors
• Several Si(Li) detectors
• Ultra Thin Window Si(Li)
• Peltier cooled PIN diodes
• Si-drift detector
• Experimental XRF set-ups
• Secondary target
• Total Reflection
• Portable

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Ion X-ray interactions with matter

National Metrology Institute of Germany PTB,
BESSY II Berlin
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Utilization of Proton Induced X-ray beams

• Measurement of X-Ray Resonant Raman
• Scattering (RRS) cross sections
• Study of polarization properties of the PIXE
• continuum

• Both, phenomena may affect (restrict or improve)
  the limits of detection for certain elements and
  matrices.

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Proton Induced X-ray beams Experimental
Reflection geometry
Transmission geometry
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X-Ray Resonant Raman Scattering
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RRS studies using polarized vs unpolarized
excitation
Collaboration with National Metrology Institute
of Germany PTB, BESSY II Berlin
Cu Ka on Ni
Spectrochimica Acta, B, Ch. Zarkadas et al. 2006
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Measurement of RRS cross sections
NIM B 2002 J. Phys., Condensed Matter,
2002 Karydas et al.
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Polarization properties of the PIXE continuum
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Polarization properties of the PIXE continuum
Carbon irradiation
C. Potiriadis et. al. X-Ray Spectrometry, 2005
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Channeling parameters for various crystals

• ? ratio of the channeling energy loss to the
  tabulated values for amorphous materials, ?
  mean de-channeling length
• Nuclear resonance's are used as markers for the
  penetration depth, Kokkoris et al.

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ALIX Applied Research
Applied Research -
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Cultural Heritage
Objectives The development and application of
portable XRF or Ion Beam methods for the
non-destructive analysis/characterization of
cultural materials

• Projects
• Development and evaluation of portable XRF
  spectrometers
• Development of analytical methodologies that
  enhance and optimize the complementary role of
  various recently developed portable techniques
  (XRF, XRD, a-PIXE) in archaeometrical/conservation
  research.
• INFN-LNS, Catania, Italy, TU Berlin
• Ion beam and X-ray methods to assess the laser
  cleaning efficiency on ancient metals, TU of
  Athens

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Characterization of microscopic gold leafs onto
marble
Delos, Musée, Aphrodite dorée
Video Microscope by B. Bourgeois and Ph. Jockey
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ND Determination of the of Gold Leafs Thickness
(1)
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Non destructive analysis of El Grecos Baptism
of Christ

• E. Aloupi
• V. Paschalis, S. Stassinopoulos
• A. G. Karydas
• V. Tornari, D. Anglos
• V. Gionis, G. Chryssikos

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Synthesis, new issues and further analysis
(cont.)

• Correlation between
• of Co-Fe-Ni-As showed
• an interesting pattern

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Biomedicine
Objectives To develop novel analytical
methodologies for the efficient, precise and
accurate determination of trace elements in human
tissues or fluids, by means of X-Ray fluorescence
(XRF) or Ion Beam methods.

• Projects
• Measurement of uranium in human by developing a
  pre-concentration method resulting to ng/L
  detection limits
• Fluorine analysis in human teeth (PIGE)
• Department De Fisica at Centro de Fisica
  Atomica, Lisboa-Portugal
• Trace metal analysis in human blood serum,
• Propaedeutic Surgical Clinic at Athens
  University Medical School
• Analysis of Platinum traces (aqueous cisPt
  solution or Pt nanoparticles) in the blood
  circulation of mice
• Pharmaceutical Technology Laboratory at
  University of Patras

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Uranium detection in human
Spectrochimica Acta Part B 2002, Ch. Zarkadas et
al.
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Biomedicine Pt monitoring in blood
Journal of Control Release, 2002 Augoustaks et
al.
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Current Projects External Ion-beam Set-up
Authenticity control and safeguard of the
identity of ancient artifacts, objects of art and
technologically authentic replicas, by using
non-destructive analytical techniques and
in-built elemental tagging technologies
Co-funded by EU and GSRT
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Current Projects Development of a multipurpose
Scattering chamber
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3D Micro PIXE A New Technique for Depth
Resolved Elemental Analysis
Institute of Optics and Atomic Physics, TU,
Berlin Jožef Stefan Institute, Ljubljana
Centre de Recherche et de Restauration des
Musée de France (C2RMF), CNRS UMR 171 Institute
of Nuclear Physics, NCSR Demokritos
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Experimental set-up at JSI MicroAnalytical Center
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Experimental set-up at JSI MicroAnalytical Center
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Depth profile analysis of a multilayer
Ag / Kapton / Au/ Kapton / Ni / Kapton / Cu
3 / 12.5 / 1 / 12.5 / 1 / 12.5
/ 7 µm
AG Karydas et al. J. Anal. Atom. Spectroscopy
(2007)
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3D Micro-PIXE analysis of an archaeological
sample TH/CL-AKROP-34, 5cent. BC, Makrygianni,
Acropolis
Black gloss layer on a clay body
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Simulations vs Experiment Attic clay
3D-MicroPIXE analysis
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3D Micro-PIXE in air Applications to Art and
Archaeological Objects
B. Kanngießer, A.G. Karydas, R. Schütz, D.
Sokaras, I. Reiche, S. Röhrs, L. Pichon, J.
Salomon NIM B, 2007, to be published
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Simulation of a pictorial multilayer
Characteristic Peak Centroid MeasurementFWHM MeasurementFWHM System Depth Response FWHM System Depth Response FWHM
µm µm µm µm µm
Cu Ka 9.426 31.97 31.97 28.77 28.77
Pb La 32.53 35.10 35.10 23.91 23.91
Pb Ma 28.19 70.19 70.19 68.27 68.27
Sn La 30.54 57.97 57.97 54.89 54.89
Ca Ka 59.86 56.18 56.18 52.36 52.36

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Depth profile through micro-beam
scanning/ Simulation
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Thank you !