Vacuum chamber of the injector synchrotron for the Advanced Photon Source

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The 40 chambers of the 368 m, 7-GeV injector synchrotron of the Advanced Photon Source are made from 1 mm-thick, 316LN stainless steel tubing. Tubes are cold-drawn to an elliptical shape with inside major and minor axes of 6 cm and 3.7 cm, respectively. This results in a thin metallic chamber without corrugations, which allows maximum beam space in the magnets and withstands atmospheric pressure. Sections of the chamber are bent to match the radius of curvature (33.3 m) of the beam over the entire effective length of the dipole magnets. A modified orbital welder is used to join sections ... continued below

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Pages: (3 p)

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Benaroya, R. & Dortwegt, R. January 1, 1991.

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Description

The 40 chambers of the 368 m, 7-GeV injector synchrotron of the Advanced Photon Source are made from 1 mm-thick, 316LN stainless steel tubing. Tubes are cold-drawn to an elliptical shape with inside major and minor axes of 6 cm and 3.7 cm, respectively. This results in a thin metallic chamber without corrugations, which allows maximum beam space in the magnets and withstands atmospheric pressure. Sections of the chamber are bent to match the radius of curvature (33.3 m) of the beam over the entire effective length of the dipole magnets. A modified orbital welder is used to join sections of tubing. The chambers and the pumping system required to achieve a pressure of 10{sup {minus}9} Torr are described. A straight section of chamber tubing was tested under external pressure up to 60 psig. At 15 psig, the resulting deflection at the minor half axis was 0.2mm and a maximum compressive stress of 13,500 psi was measured. Tube deformation remained in the elastic region up to {approximately}38 psig. 4 refs., 2 figs.

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Pages: (3 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991

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  • Other: DE91011859
  • Report No.: ANL/CP-73089
  • Report No.: CONF-910505--27
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5954894
  • Archival Resource Key: ark:/67531/metadc1096463

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1991

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  • Feb. 18, 2018, 3:59 p.m.

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  • April 18, 2018, 5:22 p.m.

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Benaroya, R. & Dortwegt, R. Vacuum chamber of the injector synchrotron for the Advanced Photon Source, article, January 1, 1991; Illinois. (digital.library.unt.edu/ark:/67531/metadc1096463/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.