Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 24: Beschleunigerphysik V (Strahldiagnose I)
HK 24.6: Vortrag
Montag, 4. März 2013, 18:00–18:15, WIL-C205
System Design for the FAIR Proton LINAC BPMs — •Peter Forck1, Mohammed Almalki1, Gianluigi Clemente1, Lars Groening1, Wolfgang Kaufmann1, Piotr Kowina1, Claire Simon2, and Wolfgang Ackermann3 — 1GSI — 2CEA/ Saclay, IRFU — 3TU Darmstadt, TEMF
The planned Proton LINAC at the FAIR facility will provide a beam current of 70 mA accelerated to 70 MeV by novel CH-type DTLs. Four-fold button Beam Position Monitor (BPM) will be installed at 14 locations along the LINAC. The specification for position measurement is 0.1 mm spatial resolution and for time-of-flight beam velocity determination the accuracy must be 8.5 ps corresponding to 1 degree with respect to the 325 MHz acceleration frequency. Finite element and finite integration technique calculations by CST Particle Studio for non-relativistic velocities were performed to determine the signal characteristic in time- and frequency domain. Most of these BPMs are mounted only about 40 mm upstream of the CH cavities and the BPM signal strength caused by the cavity residual rf-power was estimated. The technical layout of the BPM system is discussed.