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Townes-Andrews, E.; Seddon, E.A.
16th National Congress of the Australian Institute of Physics. Congress Proceedings Handbook and Abstracts2005
16th National Congress of the Australian Institute of Physics. Congress Proceedings Handbook and Abstracts2005
AbstractAbstract
[en] Full text: 4GLS is a suite of accelerator-based light sources planned to provide state-of-the-art radiation in the low energy photon regime. Superconducting energy recovery linac (ERL) technology will be utilised in combination with a variety of free electron lasers (IR to XUV), undulators and bending magnets. The 4GLS undulators will be optimised to generate spontaneous high flux, high brightness radiation, of variable polarisation, from 3-100 eV. However, they will also generate usable radiation (in the higher harmonics) up to around 800 eV. The ERL technology of 4GLS will allow shorter bunches and higher peak photon fluxes than possible from storage ring sources. It will also give users the added bonuses of pulse structure flexibility and effectively an infinite beam lifetime. VUV and XUV FELs will be used to generate short pulses (in the fs regime) of extreme ultraviolet light that is broadly tuneable and more than a million times more intense than the equivalent spontaneous undulator radiation. A strong feature of the scientific programme planned for 4GLS is dynamics experiments in a wide range of fields. Pump probe experiments will allow the study of chemical reactions and short-lived intermediates on the timescale of bond breaking and bond making, even for very dilute species. The high intensity of the FEL radiation will allow very high resolution in imaging applications. Funding for the first three years of the 4GLS project was announced by the UK Government in April 2003. This includes the research and development work necessary to produce a design study report, with the construction of an ERL-prototype. It is anticipated that the full facility will be available to users in 2010. Copyright (2005) Australian Institute of Physics
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Australian Institute of Physics (Australia); 268 p; 2005; p. 146; 16. National Congress of the Australian Institute of Physics. Physics for the Nation; Canberra, ACT (Australia); 30 Jan - 4 Feb 2005; Available in abstract form only, full text entered in this record. Also available at http://aipcongress2005.anu.edu.au/pdf/AIPC_Handbook_V2.pdf where the full text of some presentations could be found; Country of input: International Atomic Energy Agency (IAEA)
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