X-ray Holography with a Position Sensitive Detector

• Authors: A. Lausi , M. Kopecky , E. Busetto , A. Savoia
• Languages of publication: EN

Abstracts

EN

Integrating photon collection on position sensitive detectors used in combination with an absorption filter offers many advantages in X-ray fluorescence holography experiments: (i) the simultaneous recording of the full hologram allows us to overcome most of the difficulties - notably the large number of experimental points and the precision requirements - that make the practical realization of the measurement of holographic patterns very difficult and time demanding also when using powerful synchrotron radiation sources; (ii) the high angular resolution and the very precise detection of intensities make the reconstruction of images of distant as well as light atoms possible; (iii) area detectors are readily available at most crystallography dedicated beamlines at synchrotron radiation sources, so there is no need of complex, dedicated instrumentation. As an example, the hologram of a CoO single crystal recorded on an imaging plate is reported, evidencing the images of atoms located up to more than 7Å far from the emitter and also of the light oxygen atoms.

Keywords

EN

61.10.-i; 07.85.-m; 42.40.-i

Discipline

• 07.85.-m: X- and γ-ray instruments(for x- and γ-ray telescopes, see 95.55.Ka in astronomy; for x-ray beams and x-ray optics, see 41.50.+h)
• 42.40.-i: Holography

• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 101
• Issue: 5
• Pages: 621-628

Dates

published

2002-05

received

2001-08-31

Contributors

author

A. Lausi

• Sincrotrone Trieste, Strada Statale 14 - km 163.5 in Area Science Park, 34012 Basovizza - Trieste, Italy

author

M. Kopecky

• Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 180 40 Prague, Czech Republic

author

E. Busetto

• Sincrotrone Trieste, Strada Statale 14 - km 163.5 in Area Science Park, 34012 Basovizza - Trieste, Italy

author

A. Savoia

• Sincrotrone Trieste, Strada Statale 14 - km 163.5 in Area Science Park, 34012 Basovizza - Trieste, Italy

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Identifiers

DOI

10.12693/APhysPolA.101.621