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Accelerator Control and Diagnostics


Grant applications are sought to develop (1) advanced beam diagnostics concepts and devices that provide high speed computer-compatible measurement and monitoring of particle beam intensity, position, emittance, polarization, luminosity, momentum profile, time of arrival, and energy (including such advanced methods as neural networks or expert systems, and techniques that are nondestructive to the beams being monitored); (2) beam diagnostic devices that have increased sensitivities through the use of superconducting components (for example, filters based on high Tc superconducting technology or Superconducting Quantum Interference Devices); (3) measurement devices-systems for cw beam currents in the range 0.1 to 100 A, with very high precision (<10-4) and short integration times; (4) beam diagnostics for ion beams with intensities less than 107 nuclei-second; (5) non-destructive beam diagnostics for stored proton-ion beams, such as at the RHIC, and-or for 100 mA class electron beams; (6) devices-systems that measure the emittance of intense (>100kW) cw ion beams, such as those expected at a future rare isotope beam facility; (7) beam halo monitor systems for ion beams; and (8) instrumentation for electron cloud effect diagnostics and suppression. Grant applications are sought for the development of triggerable, high speed optical and-or IR cameras, with associated MByte-scale digital frame grabbers for investigating time dependent phenomena in accelerator beams. Image capture equipment needs to operate in a high-radiation environment and have a frame capture rate of up to 1 MHz. Imaging system needs to have memory capacity at the level of 1000 frames (10 GByte or higher total memory capacity). The cameras will be used for high-speed analysis of optical transition or optical diffraction radiation data. Grant applications are sought for developing point of delivery beam bunch length monitors for the Jefferson Lab CEBAF accelerator. Beam energies are from 6-12 GeV and bending magnetics are available to produce synchrotron radiation. Non-invasive monitoring is preferred. 500 MHz beam currents are typically above 5 uA and bunch lengths are typically below 30 microns rms. Grant applications also are sought for intelligent software and hardware to facilitate the improved control and optimization of charged particle accelerators and associated components for nuclear physics research. Areas of interest include the development of (1) generic solutions to problems with respect to the initial choice of operation parameters and the optimization of selected beam parameters with automatic tuning; (2) systems for predicting insipient failure of accelerator components, through the monitoring-cataloging-scanning of real-time or logged signals; and (3) devices that can perform direct 12-14 bit digitization of signals at 0.5-2 GHz and that have bandwidths of 100+ kHz.
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