| Zugriffsnummer | 11210 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Initial tests of a new X-ray Michelson interferometer |
| Autor(in); Institution |
Sutter, John P.; Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronensynchrotron DESY, Hamburg, GERMANY
Kuetgens, Ulrich; 4.3, Quantenoptik und Längeneinheit, PTB-Braunschweig
Materlik, Gerhard; Diamond Light Source Ltd, Rutherford Appleton Laboratory, Chilton, UK
Rostomyan, Armen; Yerevan State University, Yerevan, REPUBLIC OF ARMENIA
|
| Quelle/Jahr | Journal of Applied Crystallography: 36 (2003), 1432 - 1439 |
| ISSN | 0021-8898 |
| Verlag | Oxford: Blackwell |
| Zusammenfassung | A Michelson interferometer for X-rays of wavelength ≈ 1 Å has been proposed to test the temporal coherence of FEL radiation. Such a device has been made at HASYLAB from a single silicon crystal. It is based on the BBB interferometer of Bonse & Hart. One of its mirrors can be pushed by a piezo to introduce the desired beam path difference. For the preliminary tests described in this paper and the next, the crystal was also equipped with an LLL interferometer to check the quality of the crystal and of its preparation. The rotation of a phase-shifting object (a Plexiglas plate) in one of the LLL's beam paths has been found to produce a fringe pattern which can be shown to yield the phase-shifting material's index of refraction. The interferometer crystal's front section was held fixed with a compression spring. At the same time, the interferometer was bathed in viscous damping fluid to reduce vibrations. |
