Realistic undulators for intense gamma-ray beams at future colliders

Alrashdi, Ayash and Bailey, Ian and Newton, D. (2015) Realistic undulators for intense gamma-ray beams at future colliders. In: Proceedings of IPAC2015, Richmond VA, USA. UNSPECIFIED, USA, pp. 1756-1758. ISBN 9783954501687

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Abstract

The baseline designs for the ILC and CLIC require the production of an intense flux of gamma rays in their positron sources. In the case of CLIC the gamma rays are produced by a Compton backscattering source, but in this paper we concentrate on undulator-based sources as proposed for the ILC.We present the development of a simulation to generate a magnetic field map based on a Fourier analysis of any measured field map. We have used a field map measured from the ILC helical undulator prototype to calculate the typical distribution of field errors, and used them in our calculations to produce simulated field maps. We show that a loss of gamma ray intensity of ~8% could be expected, compared to the ideal case. This leads to a similar drop in positron production which can be compensated for by increasing the undulator length.

Item Type: Contribution in Book/Report/Proceedings
Departments: Faculty of Science and Technology > Physics
ID Code: 76470
Deposited By: ep_importer_pure
Deposited On: 22 Dec 2015 13:52
Refereed?: Yes
Published?: Published
Last Modified: 24 Feb 2020 04:28
URI: https://eprints.lancs.ac.uk/id/eprint/76470

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