Construction of self-consistent longitudinal matches in multipass energy recovery linacs

Segurana, Gustavo Perez, Bailey, Ian R and Williams, Peter H ORCID: 0000-0002-8987-4999 (2022) Construction of self-consistent longitudinal matches in multipass energy recovery linacs. PHYSICAL REVIEW ACCELERATORS AND BEAMS, 25 (2). 021003-.

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Official URL: http://dx.doi.org/10.1103/PhysRevAccelBeams.25.021...

Abstract

Any proposal for an accelerator facility based upon a multipass Energy Recovery Linac (ERL) must possess a self-consistent match in longitudinal phase space, not just transverse phase space. We therefore present a semi-analytic method to determine self-consistent longitudinal matches in any multipass ERL. We apply this method in collider scenarios (embodying an energy spread minimising match) and FEL scenarios (embodying a compressive match), and discuss the consequences of each. As an example of the utility of the method, we prove that the choice of common or separate recirculation transport determines the feasibility of longitudinal matches in cases where disruption, such as synchrotron radiation loss, exists. We show that any high energy multipass ERL collider based upon common recirculation transport will require special care to produce a self-consistent longitudinal match, but that one based upon separate transport is readily available. Furthermore we show that any high energy multipass ERL FEL driver based upon common recirculation transport requires a larger resultant rf beam load than the one based on separate transport, favouring the separate transport designs.

Item Type:	Article
Additional Information:	13 pages, 18 figures
Uncontrolled Keywords:	physics.acc-ph, physics.acc-ph
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	12 Jan 2022 15:55
Last Modified:	15 Mar 2024 18:14
DOI:	10.1103/PhysRevAccelBeams.25.021003
Open Access URL:	https://journals.aps.org/prab/abstract/10.1103/Phy...
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3146159