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Title: Development of dielectric-based high gradient accelerating structures.

Abstract

High gradient accelerating structures using dielectric-lined circular waveguides have been developed for a number of years at Argonne National Laboratory. In this article, we first report the experimental results of high power rf testing on the quartz based Dielectric-Loaded Accelerating (DLA) structure carried out on Feb. 2006 at the Naval Research Laboratory. The motivation for this experiment is to test the multipactor effect on different materials under high power and high vacuum condition. Up to 12 MW pulsed rf went through the tube without breakdown. Multipactor appeared during the experiment but with different features compared to other materials like alumina. Photomultiplier Tube (PMT) measurements were introduced into the experiment for the first time to observe the light emission time and intensity. In the second part of this paper, ways to achieve higher gradient for DLA structures are proposed: (1) smaller ID and longitudinal gap free DLA structures to reduce multipactor and obtain higher gradient; (2) new coaxial type coupler to avoid dielectric gap and improve impedance matching; (3) double layered DLA structure to reduce rf loss and enhance shunt impedance as well.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOD
OSTI Identifier:
973764
Report Number(s):
ANL-HEP-CP-06-67
TRN: US1002029
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 12th Advanced Accelerator Concepts Workshop; Jul. 10, 2006 - Jul. 15, 2006; Lake Geneva, WI
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; ACCELERATORS; ANL; BREAKDOWN; BYPASSES; DIELECTRIC MATERIALS; IMPEDANCE; NAVAL RESEARCH LABORATORY; PHOTOMULTIPLIERS; QUARTZ; TESTING; WAVEGUIDES

Citation Formats

Jing, C., Gai, W., Konecny, R., Power, J., Liu, w., Gold, S. H., Kinkead, A. K., Kanareykin, A., Kazakov, S., High Energy Physics, Euclid Techlabs, LLC, Naval Research Lab., LET Corp., and KEK. Development of dielectric-based high gradient accelerating structures.. United States: N. p., 2006. Web. doi:10.1063/1.2409150.
Jing, C., Gai, W., Konecny, R., Power, J., Liu, w., Gold, S. H., Kinkead, A. K., Kanareykin, A., Kazakov, S., High Energy Physics, Euclid Techlabs, LLC, Naval Research Lab., LET Corp., & KEK. Development of dielectric-based high gradient accelerating structures.. United States. doi:10.1063/1.2409150.
Jing, C., Gai, W., Konecny, R., Power, J., Liu, w., Gold, S. H., Kinkead, A. K., Kanareykin, A., Kazakov, S., High Energy Physics, Euclid Techlabs, LLC, Naval Research Lab., LET Corp., and KEK. Sun . "Development of dielectric-based high gradient accelerating structures.". United States. doi:10.1063/1.2409150.
@article{osti_973764,
title = {Development of dielectric-based high gradient accelerating structures.},
author = {Jing, C. and Gai, W. and Konecny, R. and Power, J. and Liu, w. and Gold, S. H. and Kinkead, A. K. and Kanareykin, A. and Kazakov, S. and High Energy Physics and Euclid Techlabs, LLC and Naval Research Lab. and LET Corp. and KEK},
abstractNote = {High gradient accelerating structures using dielectric-lined circular waveguides have been developed for a number of years at Argonne National Laboratory. In this article, we first report the experimental results of high power rf testing on the quartz based Dielectric-Loaded Accelerating (DLA) structure carried out on Feb. 2006 at the Naval Research Laboratory. The motivation for this experiment is to test the multipactor effect on different materials under high power and high vacuum condition. Up to 12 MW pulsed rf went through the tube without breakdown. Multipactor appeared during the experiment but with different features compared to other materials like alumina. Photomultiplier Tube (PMT) measurements were introduced into the experiment for the first time to observe the light emission time and intensity. In the second part of this paper, ways to achieve higher gradient for DLA structures are proposed: (1) smaller ID and longitudinal gap free DLA structures to reduce multipactor and obtain higher gradient; (2) new coaxial type coupler to avoid dielectric gap and improve impedance matching; (3) double layered DLA structure to reduce rf loss and enhance shunt impedance as well.},
doi = {10.1063/1.2409150},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

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