Design of a double dipole electron spectrometer

Maitrallain, Antoine and van der Geer, Bas and de Loos, Marieke and Manahan, Grace and Wiggins, S. Mark and Li, Wentao and Shahzad, Mohammed and Spesyvtsev, Roman and Battaglia, Giorgio and Vieux, Gregory and Brunetti, Enrico and Jaroszynski, Dino (2019) Design of a double dipole electron spectrometer. In: SPIE Optics + Optoelectronics. SPIE, Bellingham, Washington. ISBN 9781510627406

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    Abstract

    With the increase of laser power at facilities reaching petawatt-level, there is a need for accurate electron beam diagnostics of the laser wakefield accelerator (LWFA), which are becoming important tools for a wide range of applications including high field physics. Electrons in the range of several 10 0s of GeV are expected at these power levels. Precise diagnostic systems are required to enable applications such as advanced radiation sources. Accurate measurement of the energy spread of electron beams will help pave the way towards LWFA based free-electron lasers and plasma based coherent radiation sources. We propose an innovative double dipole spectrometer suitable for characterizing bunches produced using a petawatt class laser.