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Phys. Rev. Lett. 90, 104801 (2003) [4 pages]

Observation of Incoherent Diffraction Radiation from a Single-Edge Target in the Visible-Light Region

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T. Muto1, S. Araki2, R. Hamatsu1,*, H. Hayano2, T. Hirose1, P. Karataev1, G. Naumenko3, A. Potylitsyn3, and J. Urakawa2
1Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan
2KEK:High Energy Accelerator Research Organization, 1-1 Oho, Tukuba, Ibaraki 300-0801, Japan
3Tomsk Polytechnic University, 634050, pr.Lenina 2a, Tomsk, Russia

Received 21 October 2002; published 14 March 2003

An experiment to investigate the diffraction radiation from a single edge target has been performed at the accelerator test facility of KEK with the aim of developing noninvasive beam diagnostics. The yield and the angular distribution of diffraction radiation as a function of the impact parameter was measured in the visible light region. The distributions were qualitatively consistent with the theoretical expectation. This work exhibits the first observation of the incoherent diffraction radiation in the visible light region.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.104801
DOI:
10.1103/PhysRevLett.90.104801
PACS:
41.60.–m, 41.75.Ht

*Corresponding author.

Electronic address: hamatsu@phys.metro-u.ac.jp