Open AccessRoughness Tolerance Studies for the Undulator Beam Pipe Chamber of LCLS-II
Author(s) -
K. Bane,
Gennady Stupakov
Publication year - 2014
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/1131463
Subject(s) - undulator , cathode ray , physics , flux (metallurgy) , electron , beam (structure) , optics , nuclear physics , materials science , metallurgy
We investigate the effect of wall roughness on the wakefield-induced energy variation in the undulator beam pipe of LCLS-II. We find that a wall roughness equivalent to an rms surface slope of 30 mr increases the total induced energy variation within the bunch (due to the resistive wall wake) by a modest 20%.
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