17–22 May 2026
C.I.D
Europe/Zurich timezone

Undulator radiation from a single electron in a storage ring

THP2038
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A05: Synchrotron Radiation Facilities Poster session

Speaker

Shaukat Khan (TU Dortmund University)

Description

A low-intensity double-slit experiment in the time domain has been undertaken by measuring the spectral distribution of synchrotron light from a single relativistic electron in a storage ring. In two consecutive undulators with a dispersive section between them (known as optical klystron), an electron beam emits two temporally separated light pulses leading to a spectrum with interference fringes - in close analogy to the angular distribution of light behind two spatially separated slits. Experiments at the electron storage rings DELTA in Dortmund, Germany, and UVSOR-III in Okazaki, Japan, show directly that the spectral distribution of accumulated synchrotron light from a single electron is essentially the same as the spectrum from a beam of many electrons. While the latter is usually explained by interference between simultaneous the light waves from the two undulators, the single-electron experiments demonstrate the uncertainty of the photon source point over several meters.

Funding Agency

Work supported by BMFTR (contract 05K22PE4) and by the Federal State NRW

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Author

Shaukat Khan (TU Dortmund University)

Co-authors

Arjun Radha Krishnan (TU Dortmund University) Carsten Mai (Helmholtz-Zentrum Berlin für Materialien und Energie) Hiroshi Miyauchi (High Energy Accelerator Research Organization) Masahiro Katoh (Hiroshima Synchrotron Radiation Center) Miho Shimada (High Energy Accelerator Research Organization) Tatsuo Kaneyasu (Institute for Molecular Science) Vivek Vijayan (TU Dortmund University) Wa'el Salah (Hashemite University) Yasuaki Okano (Institute for Molecular Science) Yuya Asai (Hiroshima University) Mr Zohair Usfoor (TU Dortmund University)

Presentation materials

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