7 research outputs found
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Numerical simulation of the SLAC X-100 klystron using RKTW2D
We have performed numerical simulations of the X-100 klystron being developed at Stanford Linear Accelerator Center. The X-100 is being developed as a possible source for the next generation of linear collider, and will be required to produce {approx}100 MW of power for a duration of {approx}800 ns. Our simulations were performed using the simulation programs RKTW1D and RKTW2D, developed at Lawrence Livermore National Laboratory. The codes were used to investigate the operation of the klystron over a wide range of operating conditions. We will present comparisons of the simulation results with experimental results. 3 refs., 5 figs
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High gradient electron guns
Experiments have been conducted to determine peak operating gradients attainable in thermionic electron guns. These tests are part of a study of high-current-density, long-life cathodes suitable for use in high power klystrons. We also investigated the use of chromium oxide coating as a means of inhibiting electronic breakdown across the focus electrode anode gap. Field gradients in excess of 280 kV/cm have been achieved for a gun operating at 240 kV with a beam current of 228 A, at pulse widths of the order of 1 {mu}s. 3 refs., 5 figs
Studies on excitation functions of alpha-induced reactions on natFe from threshold to 45 MeV
Excitation functions of the natFe(, x)57Ni, natFe(, x)55, 56, 57, 58m, gCo and natFe(, x)52, 54Mn reactions were measured using the stacked-foil activation technique. The induced radioactivities in both the target and monitor foils were measured using an off-line -ray spectrometric technique. The cross sections for the above reactions were also calculated theoretically using the TALYS-1.8 code. The measured results were compared with the other experimental data and theoretical values. The theoretically calculated values are described well by our experimental data. It is observed that the rate of proton emission is larger than the neutron one. The measured results for the formation of few radionuclides are new and the other measured data strengthen the database. The experimental and theoretical studies on the investigated reactions should lead to a useful insight into the mechanisms of those reactions
Physicotechnical properties of wurtzitic AlN-based ceramics and composites with ceramic matrix
Physics and technology of the Next Linear Collider: a report submitted to Snowmass '96
We present the current expectations for the design and physics program of an e+e- linear collider of center of mass energy 500 GeV -- 1 TeV. We review the experiments that would be carried out at this facility and demonstrate its key role in exploring physics beyond the Standard Model over the full range of theoretical possibilities. We then show the feasibility of constructing this machine, by reviewing the current status of linear collider technology and by presenting a precis of our `zeroth-order' design