Study of Rf Components for Jlc 2×2 Dlds
نویسندگان
چکیده
We have studied a multi-mode Delay Line Distribution System (DLDS)[1][2] as the RF power distribution system from klystrons to RF structures for linear colliders. In particular, a 2×2 DLDS has been proposed and studied at KEK for Japan Linear Collider(JLC). It has been proved that the 2×2 DLDS is simple, bus has good transmission efficiency. We have designed RF components of a basic unit of a DLDS using the High Frequency Structure Simulator (HFSS) code[3]. They include the TE01 extractor, the TE11 to TE01 converter, and the TE11 to TE12 converter for TE12 mode. HFSS calculation of the system, which consists of TE01 extractor and TE11 to TE01 converter, shows that the transmission efficiency of each mode is better than 95%. The components, as well as the system are being studied experimentally. A low power test model for the mode stability experiment in 55m long wave guide in DLDS is also being developed..
منابع مشابه
Design of 2×2 Dlds Rf Components for Jlc
We have studied a multi-mode Delay Line Distribution System (DLDS)[1][2] as the RF power distribution system from klystrons to RF structures for linear colliders. In particular, a 2×2 DLDS has been proposed and studied at KEK for Japan Linear Collider(JLC). It has been proved that the 2×2 DLDS is simple, bus has good transmission efficiency. We have designed RF components of a basic unit of a D...
متن کاملThe JLC/NLC Baseline Design
The JLC/NLC is a normal conducting linear collider based on X-band RF technology. The collider is designed to cover the center-of-mass energy range from 90 GeV to 1.3 TeV with a luminosity of 2 to 3 ×1034 cm−2s−1 between 500 GeV and 1 TeV. The X-band RF system, which is based on the operating NLC Test Accelerator X-band RF system, was recently modified in a way that will ensure a less expensive...
متن کاملTransverse Impedance Bench Measurements in Nlc/jlc Accelerating Structures*
The wire method is a more rapid and less costly method to measure impedances of RF components compared to methods using a beam. A setup using a single displaced wire to excite and measure transverse resonant modes in accelerating structures for the Next Linear Collider/ Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into and out of the structure using two matching s...
متن کاملOptimization of the X-band Structure for the Jlc/nlc
∗ Work supported by the U.S. DOE Contract No. DE-AC02-76SF00515. Abstract In this paper, we present design considerations to address the high gradient, wakefields, and RF efficiency issues for the JLC/NLC structures. We will present the rationale for the choices of phase advance, structure length, structure aperture, and other design aspects in the optimization of the structure. We will study t...
متن کاملOvermoded Waveguide Components for High-Power RF
High-power applications of rf often require the use of overmoded waveguide to reduce the probability of rf breakdown by lowering surface fields, as well as to reduce the attenuation due to ohmic losses in transporting the power from the point of generation to the point of use. This is particularly true in the development of warm linear collider designs, such as NLC, JLC, and CLIC, especially th...
متن کامل