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Friday meeting

Friday meeting. Nawin Juntong Halloween-2008. ICHIRO. RE-ENTRANT. TESLA. ECHO 2D and ABCI comparison. ECHO 2D mesh= σ z /5, ABCI mesh= σ z /10,. Values from papers for TESLA structure. TTF-Style Coupler. Non identical cells. 9 cells run. 4.5 cells run. Upstream. Downstream.

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Friday meeting

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  1. Friday meeting Nawin Juntong Halloween-2008

  2. ICHIRO RE-ENTRANT TESLA ECHO 2D and ABCI comparison ECHO 2D mesh= σz /5, ABCI mesh= σz /10, Values from papers for TESLA structure

  3. TTF-Style Coupler Non identical cells 9 cells run 4.5 cells run

  4. Upstream Downstream RF Coupler kick comparison 1 ILC Workshop, DESY, May 2007. 2 Wakefest07,RF coupler kick. 3 MOPP013, EPAC08. 4 MOPP042, EPAC08.

  5. kx is constant when vary the phase Φk

  6. HOM included simulation -Extract HOM geometry from Slava’s sat file in HFSS into new separated sat file for each part. -Import new sat files into MWS. -Tested simulation run with 20 lines/wavelength meshing in eigenmode solution. TDR (Z. Li @wakefest2007) NAWIN (MWS drawing by N. Juntong)

  7. NEXT • Obtain the rf-kick results from the simulation on fundamental mode and HOM couplers with MWS. • Attend CAS2008 at Frascati, Italy on 2-14 November 2008.

  8. BACK UP Slides

  9. PEC bc. PMC bc. How to calculate kick factor (Dr. G.Burt method) 1.Combine 2 SW fields to get TW fields 2.Integrate Lorentz force to get the change of momentum 3.Transverse kick factor is a ratio of the change of transverse momentum to the change of longitudinal momentum

  10. ˆ A is the fields from MWS How to calculate kick factor (B. Buckley and G.H. Hoffstaetter method) PRST-AB 10,111002(2007),Cornell-ERL-06-02 1.Combine 2 SW fields to get TW fields 2.Integrate Lorentz force to get the change of momentum 3.Transverse kick factor is a ratio of the change of transverse momentum to the change of longitudinal momentum

  11. TESLA-TTF beam pipe cavity TESLA 2001-33

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