METALLIZATION OF SNS RING INJECTION KICKER CERAMIC CHAMBERS.

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Ceramic chambers will be used in the pulsed kicker magnets for the injection of H{sup -} into the Spallation Neutron Source (SNS) accumulator ring, to avoid shielding of a fast-changing external magnetic field by metallic chamber walls and to reduce eddy current heating. The inner surfaces of the ceramic chambers will be coated with a conductive layer, possibly titanium (Ti) or copper (Cu) with a titanium nitride (TiN) overlayer, to reduce the beam coupling impedance, provide passage for beam image current and to reduce the secondary electron yields. This paper describes the development of sputtering method for the 0.83m long ... continued below

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HE,P.; HSEUH,H.C. & TODD,R.J. June 3, 2002.

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Ceramic chambers will be used in the pulsed kicker magnets for the injection of H{sup -} into the Spallation Neutron Source (SNS) accumulator ring, to avoid shielding of a fast-changing external magnetic field by metallic chamber walls and to reduce eddy current heating. The inner surfaces of the ceramic chambers will be coated with a conductive layer, possibly titanium (Ti) or copper (Cu) with a titanium nitride (TiN) overlayer, to reduce the beam coupling impedance, provide passage for beam image current and to reduce the secondary electron yields. This paper describes the development of sputtering method for the 0.83m long 16cm inner diameter (ID) ceramic chambers. Coatings of Ti, Cu and TiN with thickness up to 10 {micro}m were produced by means of DC magnetron sputtering. The difficulty of coating insulators was overcome with the introduction of an anode screen. Films with good adhesion, uniform longitudinal thickness, and conductivity were produced.

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3 pages

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  • 8TH EUROPEAN PARTICLE ACCELERATOR CONFERENCE, PARIS (FR), 06/03/2002--06/07/2002

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  • Report No.: BNL--68921
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 797131
  • Archival Resource Key: ark:/67531/metadc742977

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  • June 3, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 7, 2016, 3:45 p.m.

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HE,P.; HSEUH,H.C. & TODD,R.J. METALLIZATION OF SNS RING INJECTION KICKER CERAMIC CHAMBERS., article, June 3, 2002; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc742977/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.