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Multi Mega Watt Continuous Wave RF Window for Particle Accelerator Applications.

DE2005824080

Publication Date	2004
Page Count	22
Abstract	In the phase I project all tasks of the work plan have been completed. Stress analyses have been performed for three separate window geometries yielding overall stress distribution at the 10 Megawatt power level. The thin cylindrical shell having a characteristic impedance of 10 ohms with wave matching sections on either side demonstrated the lowest stress levels at full power. The maximum tensile stress in this geometry using TPA window material is 0.1E*8 Pa. Multipacting analysis was completed and no significant multipacting appeared at any power level up to 10 Mega Watts using a pessimistic SEY of 2.5 for the ceramic coating. A comparison of candidate materials with regard to all relevant electrical and thermal mechanical properties identified Translucent Polycrystalline Alumina (TPA) as a preferred choice. A complete set of engineering drawings along with a production plan was produced for the window assembly.
Keywords	Particle accelerators Radio frequency Continuous waves Tables (Data) Schematic diagrams Models Wavelengths Stress analysis Thermal stress RF systems Multipacting (MP) analysis Radio frequency (RF) Secondary emission yield (SEY) Translucent Polycrystalline Alumina (TPA)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200520

Multi Mega Watt Continuous Wave RF Window for Particle Accelerator Applications.

Multi Mega Watt Continuous Wave RF Window for Particle Accelerator Applications.
DE2005824080

Publication Date	2004
Page Count	22
Abstract	In the phase I project all tasks of the work plan have been completed. Stress analyses have been performed for three separate window geometries yielding overall stress distribution at the 10 Megawatt power level. The thin cylindrical shell having a characteristic impedance of 10 ohms with wave matching sections on either side demonstrated the lowest stress levels at full power. The maximum tensile stress in this geometry using TPA window material is 0.1E*8 Pa. Multipacting analysis was completed and no significant multipacting appeared at any power level up to 10 Mega Watts using a pessimistic SEY of 2.5 for the ceramic coating. A comparison of candidate materials with regard to all relevant electrical and thermal mechanical properties identified Translucent Polycrystalline Alumina (TPA) as a preferred choice. A complete set of engineering drawings along with a production plan was produced for the window assembly.
Keywords	Particle accelerators Radio frequency Continuous waves Tables (Data) Schematic diagrams Models Wavelengths Stress analysis Thermal stress RF systems Multipacting (MP) analysis Radio frequency (RF) Secondary emission yield (SEY) Translucent Polycrystalline Alumina (TPA)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200520