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Measurements of terahertz radiation generated using a metallic, corrugated pipe [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy. Office of Science, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:
pages 121-128 : digital, PDF file
Additional Creators:
United States. Department of Energy. Office of Science and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Here, a method for producing narrow-band THz radiation proposes passing an ultra-relativistic beam through a metallic pipe with small periodic corrugations. We present results of a measurement of such an arrangement at Brookhaven's Accelerator Test Facility (ATF). Our pipe was copper and was 5 cm long; the aperture was cylindrically symmetric, with a 1 mm (radius) bore and a corrugation depth (peak-to-peak) of 60 μm. In the experiment we measured both the effect on the beam of the structure wakefield and the spectral properties of the radiation excited by the beam. We began by injecting a relatively long beam compared to the wavelength of the radiation, but with short rise time, to excite the structure, and then used a downstream spectrometer to infer the radiation wavelength. This was followed by injecting a shorter bunch, and then using an interferometer (also downstream of the corrugated pipe) to measure the spectrum of the induced THz radiation. For the THz pulse we obtain and compare with calculations: the central frequency, the bandwidth, and the spectral power—compared to a diffraction radiation background signal.
Report Numbers:
E 1.99:slac-pub--16803
slac-pub--16803
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Note:
Published through SciTech Connect.
11/23/2016.
"slac-pub--16803"
"arXiv:1608.06337"
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 844 C ISSN 0168-9002 AM
Karl Bane; Gennady Stupakov; Sergey Antipov; Mikhail Fedurin; Karl Kusche; Christina Swinson; Dao Xiang.
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Funding Information:
AC02-76SF00515
View MARC record | catkey: 24048986