scholarly journals Adaptive crystal bender for high-power synchrotron radiation beams

1993 ◽  
Author(s):  
Lonny E. Berman ◽  
Jerome B. Hastings
Keyword(s):  
Synchrotron Radiation ◽  
High Power ◽  
Radiation Beams

Conserving the Coherence and Uniformity of Third-Generation Synchrotron Radiation Beams: the Case of ID19, a `Long' Beamline at the ESRF

1998 ◽  
Vol 5 (5) ◽  
pp. 1243-1249 ◽  
Author(s):  
José I. Espeso ◽  
Peter Cloetens ◽  
José Baruchel ◽  
Jürgen Härtwig ◽  
Trevor Mairs ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Phase Contrast ◽  
Angular Size ◽  
Third Generation ◽  
Optical Elements ◽  
X Ray ◽  
Front End ◽  
Ray Path ◽  
Radiation Beams

The lateral coherence length is of the order of 100 µm at the `long' (145 m) ID19 beamline of the ESRF, which is mainly devoted to imaging. Most of the optical elements located along the X-ray path can thus act as `phase objects', and lead to spurious contrast and/or to coherence degradation, which shows up as an enhanced effective angular size of the source. Both the spurious contrast and the coherence degradation are detrimental for the images (diffraction topographs, tomographs, phase-contrast images) produced at this beamline. The problems identified and the way they were solved during the commissioning of ID19 are reported. More particularly, the role of the protection foils located in the front end, the beryllium windows, the filters and the monochromator defects (scratches, dust, small vibrations) is discussed.

Synchrotron radiation beams dosimetry by TFD

1983 ◽  
Vol 204 (2-3) ◽  
pp. 549-552 ◽  
Author(s):  
Amarilli Cannata ◽  
Adolfo Esposito ◽  
Sandro Merolli ◽  
Maurizio Pelliccioni
Keyword(s):  
Synchrotron Radiation ◽  
Radiation Beams

scholarly journals Advanced Capabilities for Future Light Sources

1998 ◽  
Vol 5 (3) ◽  
pp. 202-207 ◽  
Author(s):  
Kwang-Je Kim
Keyword(s):  
Synchrotron Radiation ◽  
Photon Energy ◽  
High Power ◽  
Particle Interaction ◽  
Light Sources ◽  
Current Generation ◽  
Comprehensive Review ◽  
Radiation Sources ◽  
New Ideas ◽  
Electron Storage Rings

Methods to extend the capabilities of light sources beyond those available at the current generation synchrotron radiation sources based on undulators in electron storage rings are discussed. Taking advantage of the radiation–particle interaction and/or the availability of high-power ultrashort optical lasers, it is possible to develop sources with higher brightness, smaller temporal resolution, or higher photon energy. This paper is a summary of some of these schemes, with an emphasis on new ideas rather than on a comprehensive review.

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