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APS storage ring vacuum chamber tests for dimensional stability after bakeout cycling while under vacuum
Author(s) -
R. B. Wehrle,
R. Nielsen
Publication year - 1990
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/90382
Subject(s) - bellows , vacuum chamber , section (typography) , cycling , materials science , storage ring , rapid cycling , nuclear physics , nuclear engineering , physics , composite material , engineering , metallurgy , optics , computer science , beam (structure) , neuroscience , bipolar disorder , biology , history , operating system , cognition , archaeology
Vacuum chamber sections No. 1 and No. 2 were used for these tests. Section No. 1, a short straight section, is representative in these tests of Sections No. 3 and No. 5 as well. Section No. 2 is the longer curved section used within the dipole bend magnets and is representative of the similar Section No. 4. The combination of Sections No. 1 and No. 2 joined by a connected bellows was mounted as presently planned for the final installation. This afforded an early testing of chamber positional stability after bakeout cycling. Tests of chamber dimensional stability were also made during vacuum cycling

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