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Two new insertion devices for the generation of elliptically polarized synchrotron radiation have been constructed to be installed in two electron storage rings, the Accumulation Ring for the TRISTAN project and the Photon Factory ring at KEK, National Laboratory for High Energy Physics. These new light sources are designed to produce (1) intense radiation with a degree of circular polarization (Pc) between 0.5 and 0.9 in hard x-ray region, and (2) quasimonochromatic radiation with Pc>0.7 in vacuum ultraviolet region.
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Yamamoto et al. (1989) studied this question.
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