Indirect phase locking of RF clock to the beam for BNL booster BPM system

To accelerate both protons and heavy ions, the AGS Booster requires a broadband (multi-octave) beam position monitoring system with a dynamic range spanning several orders of magnitude (2 x 10'° to 1.5 x 10" particles per pulse). System requirements include the ability to acquire single turn trajectory and average orbit information with ±0.1 mm resolution. The design goal of ± 0.5 mm corrected accuracy requires that the detectors have repeatable linear performance after periodic bakeout at 300°C. The system design and capabilities of the Booster Beam Position Monitor will be described, and initial results presented.

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The AGS booster beam position monitor system

Ciardullo

Abola

Beadle

et al.

Conference Record of the 1991 IEEE Particle Accelerator Conference

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Design of the AGS Booster beam position monitor electronics

Ciardullo

Beadle

Conference Record of the 1991 IEEE Particle Accelerator Conference

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Abstractoutputs which can be configure._ to provide either buffered The operational requirements of the AGS Booster Beam bunch signals or their sum and difference.-.These auxilliary ; Position Monitor system necessitate the use of electronics with outputs are currently being used as a commissioning aide, and wide dynamic range and broad instantaneous bandwidth, will eventually be utilized by the Tune Meter, RF radial and Bunch synchronization is provided by a remote timing phase control loops. sequencer coupled to the local ring electronics via digital fiberEach FEP input channel contains a shunt bleeder resistor optic links. The Sequencer and local ring circuitry work whose purpose is to prevent excessive charge accumulation on together to provide single turn trajectory or average orbit and the electrode and signal cable [3]. This resistor, together with intensity information, integrated over I to 255 bunches. Test the electrode and cable capacitances defines the low end of the capabilities are built in for the purpose of enhancing BPM FEP frequency response, as woll as the amplitude of the bunch system accuracy. This paper describes the design of the signals. The cables are matched to their characteristic impedBooster Beam Position Monitor electronics, and presents ance at high frequencies via series RC to prevent VSWR performance details of the front end processing, acquisition ripple. A series 200 ohm ivsistor at the detector end of the

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Indirect phase locking of RF clock to the beam for BNL booster BPM system

Cited by 2 publications

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The AGS booster beam position monitor system

The AGS booster beam position monitor system

Design of the AGS Booster beam position monitor electronics

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