CERN Accelerating science

Article
Title	5 MW Beam Power in the ESSnuSB Accumulator: A Way to Manage Foil Stripping Injection at 14 Hz Linac Pulse Rate
Related title	5 MW BEAM POWER IN THE ESSnuSB ACCUMULATOR: A WAY TO MANAGE FOIL STRIPPING INJECTION AT 14 Hz LINAC PULSE RATE
Author(s)	Schönauer, Horst (CERN) ; Zou, Ye (Uppsala U.)
Publication	Geneva : JACoW, 2021
Number of pages	3
In:	JACoW IPAC '21 (2021) 4072-4074
In:	12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4072-4074
DOI	10.18429/JACoW-IPAC2021-THPAB165 (publication)
Subject category	Accelerators and Storage Rings
Abstract	In the past, the scenario for foil stripping consisted of splitting a linac pulse into 4 rings, or 3 or 4 intermediate pulses, and one ring. At present, the scenario, in view of laser stripping, consists of one ring, one pulse, split into four batches. Conventional stripping geometry would lead to foil evaporation under this beam load. One way out appears to be replacing the standard corner foil by a single-edge foil rotated to about 45deg. The tilted foil allows moving the injection point together with the painting bumps along the foil edge, distributing the deposited beam power over a larger foil area. Simulation results obtained with the same tools as in the past scenarios are presented. They show peak foil temperatures, which compare with the best results obtained from the past scenarios.
Copyright/License	publication: © 2021 (License: CC-BY-3.0)

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