Author:
Ando A.,Daté S.,Fedurin M. G.,Hara M.,Kamitsubo H.,Kiselev A. V.,Kulipanov G. N.,Kumagai N.,Mezentsev N. A.,Miyahara Y.,Nakamura T.,Ohkuma H.,Shkaruba V. A.,Skrinsky A. N.,Soutome K.,Takao M.,Tanaka H.
Abstract
A low-energy positron beam is a unique probe of materials. In high-energy electron and positron storage rings it is possible to generate intense synchrotron radiation with a photon energy of 1–3 MeV by installing a high-field (8–10 T) superconducting wiggler. High-energy photons are converted to low-energy positrons by using a suitable target–moderator system. For an 8 GeV electron storage ring at a beam current of 100 mA, final yields are estimated to be about 108–1010 slow-e+ s−1 or larger depending on the moderation efficiency, with the size of the positron source 101–102 cm2. In the present work a wiggler magnetic system of 10 T is proposed. The main parameters of the superconducting wiggler are presented.
Publisher
International Union of Crystallography (IUCr)
Subject
Instrumentation,Nuclear and High Energy Physics,Radiation
Cited by
11 articles.
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