Title :
The average orbit system upgrade for the Brookhaven AGS
Author :
Ciardullo, D.J. ; Brennan, J.M.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The flexibility of the AGS: to accelerate protons, polarized protons and heavy ions requires average orbit instrumentation capable of performing over a wide range of beam intensity (109 to 6×1013 charges) and accelerating frequency (1.7 MHz to 4.5 MHz). In addition, the system must be tolerant of dramatic changes in bunch shape, such as those occurring near transition. Reliability and maintenance issues preclude the use of active electronics within the high radiation environment of the AGS tunnel, prompting the use of remote bunch signal processing. Recently renovated electrostatic beam position detectors will be used to provide both radial and vertical bunch signals from 72 locations around the AGS. The high dynamic range requirement is addressed by using a narrowband implicit normalization scheme to provide a linear output with beam position. This paper will describe the basic objectives and design concepts for the AGS Average Orbit system upgrade
Keywords :
beam handling equipment; ion accelerators; particle beam diagnostics; proton accelerators; synchrotrons; 1.7 to 4.5 MHz; AGS tunnel; Brookhaven AGS; accelerating frequency; active electronics; average orbit instrumentation; average orbit system upgrade; beam intensity; beam position; bunch shape; electrostatic beam position detectors; heavy ions; high radiation environment; linear output; maintenance; narrowband implicit normalization; polarized protons; radial bunch signals; remote bunch signal processing; transition; vertical bunch signals; Acceleration; Electrostatics; Frequency; Instruments; Maintenance; Particle beams; Polarization; Protons; Shape; Signal processing;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505603
