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HFSS Simulations of BPM’s

HFSS Simulations of BPM’s. Christopher Nantista SLAC 8/10/05. ATF2 BPM. BINP BPM. KEK BPM. KEK BPM. |E|. |H|. external. mesh 290,000 tetrahedra. perfectly matched layer. monopole. GdfidL – from Alexei HFSS – my calculations. OBSERVATIONS:

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HFSS Simulations of BPM’s

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  1. HFSS Simulations of BPM’s Christopher Nantista SLAC 8/10/05

  2. ATF2 BPM BINP BPM KEK BPM

  3. KEK BPM |E| |H| external mesh 290,000 tetrahedra perfectly matched layer monopole

  4. GdfidL – from Alexei HFSS – my calculations • OBSERVATIONS: • Q0 is 11-14% lower from GdfidL. (I used sCu = 5.8×106 mhos/m.) • Except for BINP bpm, b’s are quite different. (I used matched waveguides w/out coax feedthroughs.) • R/Q values differ by a factor of 2.6–2.7. (I used the following:

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