CERN Accelerating science

Published Articles
Report number CERN-ACC-2017-270
Title Experimental Activities on High Intensity Positron Sources Using Channeling
Author(s) Chaikovska, Iryna (Orsay, LAL) ; Artru, Xavier (Lyon, IPN) ; Chehab, Robert (Orsay, LAL) ; Furukawa, Kazuro (KEK, Tsukuba) ; Guler, Hayg (Orsay, LAL) ; Kamitani, Takuya (KEK, Tsukuba) ; Kubytskyi, Viacheslav (Orsay, LAL) ; Miyahara, Fusashi (KEK, Tsukuba) ; Rodin, Volodymyr (Taras Shevchenko U.) ; Satoh, Masanori (KEK, Tsukuba) ; Seimiya, Yuji (KEK, Tsukuba) ; Sievers, Peter (CERN) ; Suwada, Tsuyoshi (KEK, Tsukuba)
Publication 2017
Number of pages 4
In: 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK002
DOI 10.18429/JACoW-IPAC2017-WEPIK002
Subject category Accelerators and Storage Rings
Abstract The positron source under investigation is using channeling radiation of multi-GeV electrons in a tungsten crystal. The radiated photons are impinging on the amorphous targets creating e⁺e⁻ pairs. A dipole magnet between the crystal-radiator and the amorphous-converter allows the charged particles to be swept off and only emitted photons to generate e⁺e⁻ pairs in the converter. Granular targets of different thicknesses, made of small tungsten spheres, have been recently investigated as a target-converter. This paper is describing the experimental studies conducted at the KEKB linac with such device. After the description of the experimental set-up and beam parameters, the measurement methods and preliminary results are presented.
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 Záznam vytvorený 2017-10-14, zmenený 2018-03-28


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