Mechanical design for the PBPM. 4 electrodes only, for simplicity. SMC connectors. Ceramic vacuum chamber with resistive coating Bellow allowing 0.3 or 1 mm misalignment (depending on length). Helicoflex vacuum seals. Titanium coating. Φ 6 mm. Resolution: 100 nm. Aperture: 4-6 mm.
Resolution: 100 nm.
Aperture: 4-6 mm.
Absolute precision: 10 mm.
Dynamic range: 15 bits (±1.5 mm).
Bandwidth: 100 kHz – 30 MHz.
Bakeout temperature: 150º C.
Vacuum: 10-9 Torr.
Simulation of beam horizontal movement using wire method in HSSS
High frequency simulations with PSPICE1)
Rcoating= 11.2 Ω
fcutoff = 226.8 MHz
1) Using the model described in M. Gasior, CERN-AB-2004-092; CLIC-Note-611