Time-resolved momentum and beam size diagnostics for bunch trains with very large momentum spread
2015 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 797, 234-246 p.Article in journal (Refereed) Published
We propose a novel method to measure he Lime -resolved momentum dislribulion and size of beams with very large momentum spread. To demonstrate the principle we apply the method to the beam at the end of a Compact Linear Collider decelerator, where conventional diagnostic methods are hampered by the large energy spread of the drive beam after up to 90% of its kinetic energy is converted into microwave power. Our method is based on sweeping the beam in a circular pattern to determine the momentum distribution and recording the beam size on a screen using optical transition radiation. We present an algorithm to extract the time-resolved momentum distribution. Furthermore, the beam size along the bunch train can be extracted from the image left On a screen by sweeping the beam linearly. We introduce he analysis technique and show simulation results that allow us to estimate the applicability, in addition, we present a conceptual design of the technical realization.
Place, publisher, year, edition, pages
2015. Vol. 797, 234-246 p.
Beam size measurement, Energy measurement, Spectrometry, CLIC, Electron decelerator, Time-resolved diagnostics
IdentifiersURN: urn:nbn:se:uu:diva-262942DOI: 10.1016/j.nima.2015.06.063ISI: 000360192400034OAI: oai:DiVA.org:uu-262942DiVA: diva2:858449