کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1830446 | 1027480 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multipacting-free transitions between cavities and beam-pipes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Recently multipacting (MP) has been experimentally found in two superconducting cavities to the surprise of experimenters. Computer simulation showed that the MP has occurred in transition regions between a cavity and a beam-pipe, [R.L. Geng, et al., Fabrication and performance of superconducting RF cavities for the Cornell ERL injector, in: Proceedings of the PAC 2007, Albuquerque, NM, 2007; Y. Morozumi. RF structure design and analysis XXXIII, ãhttp://lcdev.kek.jp/ILC-AsiaWG/WG5notes/ã, 18 May 2007]. Our analysis offers an insight into which electromagnetic field configuration is necessary to support MP in such geometries. Namely, a minimum of the electric field along the cavity profile line, associated with the RF potential well, attracts electrons and thus creates conditions favorable for multipactor. Choosing geometries without a minimum of the electric field allows MP-free beam-pipe transitions. Simulation results confirming this conclusion are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 595, Issue 2, 1 October 2008, Pages 293-298
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 595, Issue 2, 1 October 2008, Pages 293-298
نویسندگان
Sergey Belomestnykh, Valery Shemelin,