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  • K. E. Breymayer, Kevin Crook, +7 authors D. D. Reagan
  • 2006
Early in the history of SLAC, it was decided that the injector, the alignment system, and the beam switchyard should be developed as independent units. As a result, they are but weakly integrated with the instrumentation and control systems for the rest of the machine. They are discussed in detail in other chapters. Instrumentation and control (I & C)(More)
The Binary Pulse Compression system installed at SLAC was tested using two klystrons, one with 10 MW and the other with 34 MW output. By compressing 56@ ns klystron pulses into 70 ns, the measured BPC output wss 175 MW, limited by the available power from the two klystrons. This output was used to provide 10GMW input to a 36cell X-band structure in which a(More)
In the last few decades many papers have written about the analysis of the infant cry. The acoustic analysis has a shorter history than emotional, physiological, etc. investigations [1, 2, 3, 4, 5]. This paper deals with classical and new methods of acoustic analysis of the infant cry. The final goal is to detect hearing disorders according to the crying at(More)
This paper reports continuing work on high-gradient ac--celerator structures for future TeV linear colliders. A prerequisite of these structures is that they heavily damp wakefield modes which can be induced by e* bunch trains. Disk-loaded waveguide structures under investigation have radial slots in the disks and/or radial rectangular waveguides in the(More)
The next generation of linear colliders requires peak power sourcesof-over 200 MW per meter at frequencies above 10 GHz at pulse widths of less than 100 nsec. Several power sources are under active development, including a conventional klystron with RF pulse compression, a relativistic klystron (RK) and a crossed-field amplifier. Power from one of these has(More)
The tangential motion at the contact of two solid objects is studied. It consists of a sliding and a spinning degree of freedom (no rolling). We show that the friction force and torque are inherently coupled. As a simple test system, a sliding and spinning disk on a horizontal flat surface is considered. We calculate, and also measure, how the disk slows(More)
The next linear collider will require 200 MW of RF power per meter of linac structure at relatively high frequency to produce an acc.elerating gradient of about 100 MV/m. The higher frequencies result in a higher breakdown threshold in the accelerating structure hence permit. higher a.ccelerating gradients per meter of linac. The lower frequencies have the(More)
In order to obtain high luminosity and energy efficiency in future linear colliders, it is desirable to accelerate a train of closely spaced bunches on each rf pulse of the machine. There can be severe multibunch beam break-up in such a collider unless some means of strongly suppressing the transverse wakefield is incorporated into the design of the(More)
ABSTRACT We define three basic, calculable and measurable parameters. With these parameters we derive expressions for the radio frequency induced, beam induced, and loaded section voltages and average section gradients. Unlike the present well known expressions these alternate expressions are valid for continuous wave, pulsed, and single bunch beams, for.(More)