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MuCool Test Area RF Workshop Derun Li Center for Beam Physics Lawrence Berkeley National Laboratory November 15, 2010
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MAP RF Goals Develop a workable solution for high gradient NCRF operating in B fields between approximately 3 and 6 T. Support sub-assembly prototyping for the 6D cooling bench test. 1.Guggenheim 2.FOFO Snake 3.HCC 2 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010
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Workshop Goals Review the status of the MTA RF programs Review the status of the MTA RF programs Review proposed future RF programs Review proposed future RF programs Discuss RF R&D strategy to respond to the comments and recommendations from the MAP Review in August 2010 Discuss RF R&D strategy to respond to the comments and recommendations from the MAP Review in August 2010 – Scope of the work of MAP RF proposal – Resources – Schedule and milestones – Concerns/Risks 3 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010
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Current RF Programs Targeted R&D programs to understand the RF breakdown problems in magnetic fields Targeted R&D programs to understand the RF breakdown problems in magnetic fields a workable solution a workable solution —Physics models and numerical simulations, —Experimental programs and new techniques at 805 and 201 MHz 4 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010 The 805-MHz with RF buttons High pressure cavity ALD to eliminate field emission Be wall cavity Box cavity to study E x B effects Magnetic field insulated cavity Physics model to understand RF breakdown in magnetic fields
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Future RF Programs Magnetically insulated box cavity Magnetically insulated box cavity Beam test of HPRF cavity Beam test of HPRF cavity The 805-MHz RF button tests (Be) The 805-MHz RF button tests (Be) Update design of 805-MHz cavity Update design of 805-MHz cavity Dielectric loaded cavity Dielectric loaded cavity Design and fabrication of Be-wall cavity Design and fabrication of Be-wall cavity ALD processed buttons in pillbox cavity ALD processed buttons in pillbox cavity 201-MHz cavity test with coupling coil magnet at MTA 201-MHz cavity test with coupling coil magnet at MTA Complete MICE 201-MHz cavity Complete MICE 201-MHz cavity Single cavity vessel Single cavity vessel 5 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010
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Comments from the MAP Review 6 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010 More cavities and tests International RF Workshop
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Comments from the MAP Review 7 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010 Concerns on beryllium
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RF Recommendations from MAP Review 8 MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010
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In respond to the MAP Review Update RF proposal Update RF proposal – Revisit previous plans + this WS – Schedules and milestones – Exploring more RF tests in magnetic fields Design and build more cavities + RF tests Design and build more cavities + RF tests SLAC group: 2-T SC magnet and tests at s- or x-band frequencies SLAC group: 2-T SC magnet and tests at s- or x-band frequencies – International workshop on high-gradient RF cavities Wish we have a productive workshop Wish we have a productive workshop MTA RF Workshop, D. Li, Lawrence Berkeley National Lab, November 15, 2010 9
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