Parasitic Mode Losses versus Signal Sensitivity in Beam Position Monitors
نویسندگان
چکیده
منابع مشابه
Cavity Beam Position Monitors
Beam-based alignment and feedback systems are essential for the operation of future linear colliders and free electron lasers. A certain number of beam position monitors with a resolution in the submicron range are needed at selected locations. Most beam position monitors detect the electric or the magnetic eld excited by a beam of charged particles at di erent locations around the beam pipe. I...
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Within the FAIR SIS18 upgrade the data acquisition hardware as well as the concept for signal treatment of the Beam Position Monitoring system (BPM) were renovated. The former BPM system was based on the analog narrowband signal processing (see [1]). Since any information concerning an individual bunch is lost, observation in the turn-by-turn scale as well as tune measurement is impossible. Hen...
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The fields produced by a long beam with a given transverse charge distribution in a homogeneous vacuum chamber are studied. Signals induced by the displaced finitesize beam on electrodes of a beam position monitor (BPM) are calculated and compared to those from a pencil beam. The non-linearities and corrections to BPM signals due to a finite transverse beam size are calculated for an arbitrary ...
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The Linac Coherent Light Source (LCLS) is a freeelectron laser (FEL) at SLAC producing coherent 1.5 Å x-rays. This requires precise, stable alignment of the electron and photon beams in the undulator. We describe construction and operational experience of the beam position monitor (BPM) system which allows the required alignment to be established and maintained. Each X-band cavity BPM employs a...
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The Spallation Neutron Source (SNS) linac accelerates 52-mA peak of pulsed Hparticles to over 800 MeV. There are three types of accelerating structure in which the beam position must be measured: the drift-tube-linac (DTL); cavity-coupled-linac (CCL); and superconducting-linac (SCL)[1,2]. Beam with a 402.5-MHz structure is injected into a 402.5 MHz DTL, followed by 805-MHz CCL and SCL structure...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1985
ISSN: 0018-9499
DOI: 10.1109/tns.1985.4333794