ILC
ATF
ATF2CavityBTM
ILCkm 500[GeV][TeV]nmnmmATFATF2ILC
KEKILCATFAccelerator Test Facility()
ILCATFILCATF
ATF2
nm
nm
ATF
CavityBTMBeam
ZTMTMZTM010TM10
ZU = U CavitybeamZ2RtanRBeam
Cavity BPM ()TM8.7[nm]
Cavity BTMKMHz[dBm][dBm]W[]
P : U : QQ=
[rad]
30mm20mm 1.6[nC][rad][dBm][rad]
1.6[nC][rad]20mm30mm60mm[rad][rad][dBm]
()