Observation of optical diffraction radiation from a slit target at KEK accelerator test facility

Pavel Vladimirovich Karataev, S. Araki, R. Hamatsu, H. Hayano, T. Muto, G. Naumenko, A. Potylitsyn, N. Terunuma, J. Urakawa

Research output: Contribution to journalConference article

13 Citations (Scopus)

Abstract

We investigated diffraction radiation in optical wavelength range (ODR) as a possible tool for non-invasive transversal beam size measurements at KEK-ATF extraction line. We have designed and constructed an experimental setup consisting of the target chamber, rotatable mirror and two detectors: CCD camera with an image intensifier and a photomultiplier. The target was a silicon wafer covered with gold for better reflectivity. We have measured ODR angular distributions with and without polarization filter and dependencies on the target position with and without optical filters. We can say that the dependence on the beam size does exist. To be able to measure the beam size with a proper accuracy we need to reject the synchrotron radiation (SR) contribution reflecting from the target, which is an obstacle in our investigation. Results of our first observation of ODR from a slit target agree with theoretical model quite good. If all technical difficulties are solved, this non-invasive technique may be used for micron size beam measurements.

Original languageEnglish
Pages (from-to)158-169
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume227
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2005
EventRadiation from Relativistic Electrons in Periodic Structures - Tomsk
Duration: 8 Sep 200311 Sep 2003

Fingerprint

diffraction radiation
test facilities
Test facilities
Particle accelerators
slits
accelerators
Image intensifiers (electron tube)
Diffraction
Radiation
Optical filters
Angular distribution
Photomultipliers
CCD cameras
Synchrotron radiation
Silicon wafers
Mirrors
Gold
Polarization
Detectors
Wavelength

Keywords

  • Diffraction radiation
  • Electron beam diagnostics
  • Transition radiation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Observation of optical diffraction radiation from a slit target at KEK accelerator test facility. / Karataev, Pavel Vladimirovich; Araki, S.; Hamatsu, R.; Hayano, H.; Muto, T.; Naumenko, G.; Potylitsyn, A.; Terunuma, N.; Urakawa, J.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 227, No. 1-2, 01.01.2005, p. 158-169.

Research output: Contribution to journalConference article

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AU - Muto, T.

AU - Naumenko, G.

AU - Potylitsyn, A.

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AB - We investigated diffraction radiation in optical wavelength range (ODR) as a possible tool for non-invasive transversal beam size measurements at KEK-ATF extraction line. We have designed and constructed an experimental setup consisting of the target chamber, rotatable mirror and two detectors: CCD camera with an image intensifier and a photomultiplier. The target was a silicon wafer covered with gold for better reflectivity. We have measured ODR angular distributions with and without polarization filter and dependencies on the target position with and without optical filters. We can say that the dependence on the beam size does exist. To be able to measure the beam size with a proper accuracy we need to reject the synchrotron radiation (SR) contribution reflecting from the target, which is an obstacle in our investigation. Results of our first observation of ODR from a slit target agree with theoretical model quite good. If all technical difficulties are solved, this non-invasive technique may be used for micron size beam measurements.

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