Abstract
A compact SR source, AURORA, was constructed. The AURORA consists of an electron storage ring (1 m diameter) based on a single superconducting magnet, with a 150 MeV racetrack microtron as an injector. The electron is accelerated up to 150 MeV with the microtron, and is injected into the main ring. The electron energy is boosted up to 650 MeV (critical wavelength, 1.3 nm) without exciting the prepared resonance jumper. The maximum storage ring current is 45 mA with an injector microtron current of 7.5 μA. The measured lifetime at a few mA ring current is 20 hr under an vacuum pressure of 1x10−9 Torr. The observed beam size is 1.2 mm (horizontal) x 0.14 mm (vertical) at 45 mA. Contact X-ray micrographs of HeLa cells and chromosomes were taken with an exposure time of 10 s at 1.5 mA. Resolution of several hundred A was attained. Remodeling of the injector is now under progress for improving the ring current up to 300 mA.
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© 1992 Springer-Verlag Berlin Heidelberg
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Yamada, H. et al. (1992). Compact SR-Source AURORA, and Its Application to X-Ray Microscopy. In: Michette, A.G., Morrison, G.R., Buckley, C.J. (eds) X-Ray Microscopy III. Springer Series in Optical Sciences, vol 67. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-46887-5_4
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DOI: https://doi.org/10.1007/978-3-540-46887-5_4
Publisher Name: Springer, Berlin, Heidelberg
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