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Title |
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| MOPCH057 |
The Design of a 1.8 keV Compton X-ray Generator for a SC RF Linac at KAERI
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169 |
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- A.V. Bondarenko, S.V. Miginsky
BINP SB RAS, Novosibirsk
- Y.H. Han, Y.U. Jeong, B.C. Lee, S. H. Park
KAERI, Daejon
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A quasi-monochromatic X-ray source based on the KAERI SC linac system has been designed and is being manufactured now. A 10 MeV 10 mA electron beam together with a 20 W 1.06 ?m laser beam will be used for 1.8 keV Compton X-ray generation with a few percentage of energy spread and 107 photons per second. A simple straight beamline was designed to deliver the electron beam with no degradation of its emittance and energy spread and to focus it to a proper size to produce the desired X-rays. We expect the first demonstration of 1.8 keV Compton X-ray generation in autumn 2006.
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| MOPCH069 |
Lattice Design for the Fourth Generation Light Source at Daresbury Laboratory
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184 |
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- B.D. Muratori, M.A. Bowler, H.L. Owen, S.L. Smith
CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire
- S.V. Miginsky
BINP SB RAS, Novosibirsk
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The proposed Fourth Generation Light Source (4GLS) has three electron transport paths, an energy recovery loop containing the main linac, IDs and a VUV-FEL, a separate branch after the main linac for an XUV-FEL and a transport path for an IR-FEL. The first two present major challenges in lattice design. The energy recovery loop will be fed by a high average current gun, with bunches of charge of about 80 pC. High charge (1nC) bunches from a high brightness gun will be accelerated prior to the main linac and split into the XUV-FEL branch using energy separation after the main linac. We present a lattice design and results from numerical modelling of the electron bunch transport. The requirements of the machine are short bunches, a small emittance for both branches and an overall topology which gives a reasonable dimension for the building. Different transport and compression schemes were assessed to meet these requirements whilst balancing the disruptive effects of longitudinal and transverse space charge, CSR, wakefields and BBU. Investigations into all of these instabilities are summarized together with other transport issues and the resulting requirements on all IDs.
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| MOPCH073 |
A Project of a High-power FEL Driven by an SC ERL at KAERI
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196 |
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- A.V. Bondarenko, S.V. Miginsky
BINP SB RAS, Novosibirsk
- Y.H. Han, Y.U. Jeong, B.C. Lee, S. H. Park
KAERI, Daejon
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A project of a high-power FEL at Korea Atomic Energy Research Institute is described. The FEL is driven by a superconducting energy recovery linac. The future ERL will be connected to the existing machine without any modification. It consists of two 180-degree bents and two straight sections: one is for the FEL, another for a Compton X-rays source. One can choose the regime controlling the lenses. The total ERL is isochronous to avoid any problems with longitudinal beam instability. The total relative emittance degradation through the whole machine is ? 1.5. The FEL will be based on a 2 m helical in-vacuum undulator made of permanent magnets. One mirror of the optical cavity is blind and made of copper; the other one, the outcoupler, is semi-transparent and made of CVD diamond. The expected average power is a few kW and the tuning range 35…70 ?m.
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