Search

Your search keyword '"Susini J"' showing total 425 results
Start Over Author "Susini J"
425 results on '"Susini J"'

109. Mn-rich clusters in GaN: Hexagonal or cubic symmetry?

Author

Martínez-Criado, G., primary, Somogyi, A., additional, Ramos, S., additional, Campo, J., additional, Tucoulou, R., additional, Salome, M., additional, Susini, J., additional, Hermann, M., additional, Eickhoff, M., additional, and Stutzmann, M., additional

Published
2005
Full Text
View/download PDF

115. The X‐ray Microscopy and Micro‐spectroscopy facility at the ESRF

Author

Susini, J., primary, Salomé, M., additional, Neuhaeusler, U., additional, Dhez, O., additional, Eichert, D., additional, Fayard, B., additional, Somogyi, A., additional, Bohic, S., additional, Bleuet, P., additional, Martinez‐Criado, G., additional, Tucoulou, R., additional, Simionovici, A., additional, Barrett, R., additional, and Drakopoulos, M., additional

Published
2003
Full Text
View/download PDF

116. TwinMic: Combined scanning and full‐field imaging microscopy with novel contrast mechanisms

Author

Kaulich, B., primary, Susini, J., additional, David, C., additional, Di Fabrizio, E., additional, Morrison, G. R., additional, Thieme, J., additional, Wilhein, T., additional, Kovac, J., additional, Bacescu, D., additional, Salome, M., additional, Dhez, O., additional, Weitkamp, T., additional, Cabrini, S., additional, Gosperini, A., additional, Charalambous, P., additional, Vogt, U., additional, Podnar, M., additional, and Kiskinova, M., additional

Published
2003
Full Text
View/download PDF

121. Diffractive soft and hard X-ray optics

Author

David, C., primary, Nöhammer, B., additional, Solak, H. H., additional, Glaus, F., additional, Haas, B., additional, Grubelnik, A., additional, Dolocan, A., additional, Ziegler, E., additional, Hignette, O., additional, Burghammer, M., additional, Kaulich, B., additional, Susini, J., additional, Bongaerts, J. H.H., additional, and van der Veen, J. F., additional

Published
2003
Full Text
View/download PDF

123. Spectromicroscopy of soil colloids

Author

Schmidt, C., primary, Thieme, J., additional, Neuhäusler, U., additional, Jacobsen, C., additional, Kaulich, B., additional, Salomé, M., additional, and Susini, J., additional

Published
2003
Full Text
View/download PDF

124. Twinmic: A European twin microscope station combining full-field imaging and scanning microscopy

Author

Kaulich, B., primary, Bacescu, D., additional, Cocco, D., additional, Susini, J., additional, Salomé, M., additional, Dhez, O., additional, David, C., additional, Weitkamp, T., additional, Di Fabrizio, E., additional, Cabrini, S., additional, Morrison, G., additional, Charalambous, P., additional, Thieme, J., additional, Wilhein, T., additional, Kovac, J., additional, Podnar, M., additional, and Kiskinova, M., additional

Published
2003
Full Text
View/download PDF

127. X-ray imaging techniques and exobiology

Author

Lemelle, L., primary, Simionovici, A., additional, Susini, J., additional, Oger, Ph., additional, Chukalina, M., additional, Rau, C., additional, Golosio, B., additional, and Gillet, Ph., additional

Published
2003
Full Text
View/download PDF

136. The X-Ray Microscopy And Micro-Spectroscopy Facility At The ESRF.

Author

Susini, J., Somogyi, A., Barrett, R., Salomé, M., Bohic, S., Fayard, B., Eichert, D., Dhez, O., Bleuet, P., Martinez-Criado, G., and Tucoulou, R.

Subjects
*X-ray microscopy, *X-ray spectroscopy, *MICROSCOPY, *IMAGING systems, *SPECTRUM analysis, *ANALYTICAL chemistry
Abstract

Among the 40 beamlines in operation at the European Synchrotron Radiation Facility, three beamlines are fully dedicated to X-ray microscopy and micro-spectroscopy techniques in the multi-key range. Offering a unique combination of non destructive analytical techniques which aim to satisfy the growing demand from experimental research fields such as medicine, geology, archaeology, earth, planetary and environmental sciences. Following a brief discussion on the strengths and weaknesses of X-ray microscopy and spectro-microscopy techniques in the 1-20keV range, characteristics of the beamlines are briefly described. Examples of applications are given in the reference list. [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

137. Micro XAFS Study on Vanadium in Ascidians Alive Blood Cells Investigated by Fluorescence Scanning X-Ray Microscopy at ID21 at ESRF.

Author

Takemoto, K., Ueki, T., Fayard, B., Yamamoto, A., Sasaki, H., Salomé, M., Susini, J., Michibata, H., and Kihara, H.

Subjects
VANADIUM, SEA squirts, BLOOD cells, X-ray microscopes, X-ray microscopy, MICROSCOPY, VALENCE (Chemistry)
Abstract

X-ray microscopy microscope installed at the beam line ID21 at European Synchrotron Radiation Facility (ESRF) was used for the elucidation of micro-distribution of vanadium in ascidians. In order to examine chemical states of vanadium in the alive blood cell, a high pressure cryo-fixation technique was applied to fix its chemical states of vanadium. We have succeeded in observing uniform distribution of vanadium in the vacuole, in identifying the valency of vanadium in the cell, and more importantly in finding granules rich in vanadium of the 4th valency [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

141. Differential interference contrast X-ray microscopy with twin zone plates at ESRF beamline ID21

Author

Wilhein, T., Kaulich, B., Di Fabrizio, E., Romanato, F., Altissimo, M., Susini, J., Fayard, B., Neuhäusler, U., Cabrini, S., Polack, F., Wilhein, T., Kaulich, B., Di Fabrizio, E., Romanato, F., Altissimo, M., Susini, J., Fayard, B., Neuhäusler, U., Cabrini, S., and Polack, F.

Abstract

We describe a novel approach for converting the specimens phase information into strong image contrast in the x-ray region, the differential interference contrast x-ray microscopy (X-DIC). In the used setup, X-DIC operation was accomplished by a twin zone plate (TZP), i.e. two zone plates on both sides of the same substrate, laterally shifted by about one outermost zone width. Once a TZP has been successfully produced by means of especially developed nanofabrication processes, it is as easy to use as a single zone plate, without any alignment difficulty or further requirements to the coherence of the illumination. The tremendeous contrast enhancement was demonstrated at the microscopy beamline ID21 at ESRF in Grenoble for test objects and biological samples. TZPs allow for full field X-DIC imaging as well as for DIC scanning transmission x-ray microscopy. The first experiments were camed out at 0.31 nm wave] ength (4 keV photon energy), and features down to approx. 60 nm could be resolved in X-DIC.

Published
2003
Full Text
View/download PDF

142. Design and fabrication of new optics for X-ray microscopy and material science

Author

Di Fabrizio, E., Cojoc, D., Cabrini, S., Kaulich, B., Wilhein, T., Susini, J., Di Fabrizio, E., Cojoc, D., Cabrini, S., Kaulich, B., Wilhein, T., and Susini, J.

Abstract

The current intense interest in extrême ultraviolet and X-ray microscopy is mainly due to the availability of a nearly ideal optical source for diffractive optics (i.e. a source with low divergence whose wavelength can be tuned over a range of several keV and whose spectrum has a band pass $\Delta\lambda/\lambda$of less than 10-4). The aim of this paper is to introduce novel X-ray diffractive optics that, beside simple focusing, perform new optical functions. In particular, the intensity of the beam in the space after the optical elements can be redistributed with almost complete freedom. Using our own code we have designed high resolution diffractive elements which focus the monochromatic X-ray beam into multiple spots displaced in a single or more planes along the optical axis. These optical elements have been fabricated by means of e-beam lithography. Their functionality has been tested in two different X-ray microscopes: the scanning and the full-field imaging microscopes using the differential interference contrast method. We report experimental imaging results obtained with phase objects (PMMA and biological samples) and fluorescence measurements with important impact in the material science applications.

Published
2003
Full Text
View/download PDF

143. The X-ray microscopy facility at the ESRF: A status report.

Author

Susini, J., Barrett, R., Kaulich, B., Oestreich, S., and Salome´, M.

Subjects
*X-ray microscopy, *SPECTRUM analysis
Abstract

ID21 is a beamline dedicated to X-ray imaging and spectro-microscopy in the 0.2-7 kev energy range. Initiated four years ago, the beamline construction is almost completed and the beamline is now entering into the first operational phase. The beamline is installed on a low beta straight section which is equipped with three undulators and serves two independent endstations on two separate branch-lines. The scanning X-ray Microscope, served by the “direct” branch-line, equipped with two fixed-exit monochromators and the full-field imaging transmission X-ray microscope, served by the side-branch and optimised for imaging techniques in the 3-7 keV range. Both microscopes use zone-plates as focussing lenses. This paper describes the beamline architecture and provides some figures on the current performance of the beamline. [ABSTRACT FROM AUTHOR]

Published
2000

144. X-ray microscopy study of bone mineralization.

Author

Salome´, M., Lafage-Proust, M. H., Vico, L., Amblard, D., Kaulich, B., Oestreich, S., Susini, J., and Barrett, R.

Subjects
X-ray microscopy, BONE physiology, BIOMINERALIZATION, X-ray microscopes
Abstract

Transmission spectro-microscopy around the calcium K-edge and fluorescence microscopy were performed respectively on the Transmission X-ray Microscope (TXM) and Scanning X-ray Microscope (SXM) end-stations of ID21 beamline at ESRF, to map the calcium distribution and the Ca/P ratio in bone samples. Preliminary results are presented. The motivation for these experiments is the study of the genetic determinism of bone mineralisation parameters in two different strains of mice. [ABSTRACT FROM AUTHOR]

Published
2000

145. The transmission X-ray microscope end-station at the ESRF.

Author

Kaulich, B., Niemann, B., Rostaing, G., Oestreich, S., Salome, M., Barrett, R., and Susini, J.

Subjects
X-ray microscopes, X-ray microscopy
Abstract

A full-field imaging or transmission X-ray microscope (TXM) working in the photon energy of 3-7 kev was built at the ID21 beamline of the ESRF and is operational since the beginning of this year. The TXM is designed to work in absorption as well as in Zernike phase contrast modes and also offers the possibility for micro-spectroscopic investigations (XAS, element mapping). In this contribution, we give a technical description and characterization of the TXM end-station and discuss its imaging performance. [ABSTRACT FROM AUTHOR]

Published
2000

146. Dynamical coherent illumination for X-ray microscopy at 3rd generation synchrotron radiation sources: First results with X-rays at the Ca-K edge (4 keV).

Author

Oestreich, S., Rostaing, G., Niemann, B., Kaulich, B., Salome´, M., Susini, J., and Barrett, R.

Subjects
X-ray microscopy, X-ray microscopes, LIGHTING
Abstract

Dynamical coherent illumination is a way to deal with the illumination problems which emerge from the use of low emittance sources at recent synchrotron radiation sources for a transmission X-ray microscope (TXM). An illumination system, which uses two rotating mirrors to provide dynamical coherent illumination has been realized and tested at the TXM at ESRF's ID 2I Beamline. First results are presented and compared to results obtained with partial coherent illumination. [ABSTRACT FROM AUTHOR]

Published
2000

147. Electroplated gold zone plates as X-ray objectives for photon energies of 2–8 keV.

Author

Panitz, M., Schneider, G., Peuker, M., Hambach, D., Kaulich, B., Oestereich, S., Susini, J., and Schmahl, G.

Subjects
ZONE plates, X-ray microscopes, X-ray microscopy
Abstract

Zone plates with high spatial resolution and high diffraction efficiency are required as objectives for X-ray microscopes. In the energy region of 2-8 keV gold is a well suited material for highly efficient zone plates. In this work a process for Ni zone plates is extended for the fabrication of sub-100 nm gold zone structures. This tri-level process is based on pattern generation with electron beam lithography followed by dry etching to transfer the zone pattern into a highly cross-linked polymer which serves as galvanoform. After the electrodeposition of a thin intermediate layer of Ni, the galvanoform is filled with gold by electroplating. With this process zone plates with outermost zone widths of 70 nm and zone heights of about 500 nm, yielding a first-order diffraction efficiency of 10 % at a photon energy of 4.1 keV, were manufactured. [ABSTRACT FROM AUTHOR]

Published
2000

150. Bragg-Fresnel Multilayer Optics for X-Ray Microscopy and Spectroscopy

Author

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE MARSEILLE (FRANCE), Vidal, B., Brunel, M., Erko, A., Rochtchoupkine, D., Susini, J., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE MARSEILLE (FRANCE), Vidal, B., Brunel, M., Erko, A., Rochtchoupkine, D., and Susini, J.

Abstract

Application of metallic multilayer mirrors for construction of different components of x-ray optical schemes became more and more frequent. Number of publications gives an example of objective lenses, monochromators, focusing and imaging devices, based on figured multilayer mirrors. One of the most exited application of such optics in future can be projection X-ray lithography and local analyses of microstructures with submicron resolution for microelectronics technology. Recently, focusing and imaging by the use of some kinds of grooved diffraction optics on flat surfaces instead of the curved substrate had been reported in several papers . This optics is now known as Bragg-Fresnel Multilayer Optics (BFMO). Compared to grazing incidence optics and figured multi optics, BFMO can provide higher spatial and spectral resolutions. That is say, till to spot value up to 0.1m spatial resolution of BFMO is limited only by the flatness of the plane substrate and accuracy of the lithographic process.

Published
1992

Catalog

Books, media, physical & digital resources
See catalog results