Journal ArticleDOI
Voltage Breakdown in S-Band Linear Accelerator Cavities
TLDR
In this paper, a multiple-use cavity test system was developed to establish the criteria for voltage breakdown in S-band pulsed electron linear accelerator cavities, in terms of cavity geometry, accelerating gradient, RF pulse shape and repetition rate, surface finish, temperature and external magnetic field.Abstract:
Voltage breakdown is one of the major limiting factors in the design of a high accelerating gradient linear accelerator structure. A multiple-use cavity test system was developed to establish the criteria for voltage breakdown in S-band pulsed electron linear accelerator cavities, in terms of cavity geometry, accelerating gradient, RF pulse shape and repetition rate, surface finish, temperature and external magnetic field. The experimental set-up and test procedure, as well as the experimental results, are presented.read more
Citations
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Journal ArticleDOI
Development of an ultrasmall C-band linear accelerator guide for a four-dimensional image-guided radiotherapy system with a gimbaled x-ray head
Yuichiro Kamino,Sadao Miura,Masaki Kokubo,Ichiro Yamashita,Etsuro Hirai,Masahiro Hiraoka,Junzo Ishikawa +6 more
TL;DR: A four-dimensional image-guided radiotherapy system with a gimbaled x-ray head capable of pursuing irradiation and delivering irradiation precisely with the help of an agile moving x-rays head on the gimbals is developing.
Journal ArticleDOI
Measurements of Ultimate Accelerating Gradients in the SLAC Disk-Loaded Structure
Jinghui Wang,G. A. Loew +1 more
TL;DR: In this article, the authors present a status report on an on-going program at SLAC to study accelerator structures under high-gradient electric field conditions, which is a part of a much broader program dealing with future linear colliders.
Journal ArticleDOI
Vacuum breakdown and surface coating of rf cavities
TL;DR: In this paper, the use of the surface coating is not to reduce secondary emission but to isolate electrode whiskers from the cavity chamber and to serve as a trap for slow electrons.
Journal ArticleDOI
The Two-Beam Accelerator: Structure Studies and 35 GHz Experiments
D. B. Hopkins,R. W. Kuenning +1 more
TL;DR: The Two-Beam Accelerator (TBA) shows great promise for achieving high accelerating gradients, perhaps >250 MV/m, for such machines as electron linear colliders as mentioned in this paper.
References
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Journal ArticleDOI
Criterion for Vacuum Sparking Designed to Include Both rf and dc
TL;DR: In this article, an empirical relation is presented that describes a boundary between no vacuum sparking and possible vacuum sparking, which applies to a range of surface gradient, voltage, gap, and frequency that extends over several orders of magnitude.
Journal ArticleDOI
Standing Wave High Gradient Accelerator Structure
TL;DR: In this article, a standing wave linear accelerator was developed at Varian Associates, Inc. This accelerator is an interlaced combination of two side cavity coupled standing wave substructures.
Journal ArticleDOI
Standing wave high gradient accelerator structure
TL;DR: In this article, a standing wave linear accelerator was developed at Varian Associates, Inc. This accelerator is an interlaced combination of two side-cavity-coupled standing wave substructures.
Voltage breakdown testing for the radio-frequency quadrupole accelerator
TL;DR: In this article, a cavity was designed using SUPERFISH to test the validity of Kilpatrick's Criterion and to determine operating limits for the radio-frequency quadrupole (RFQ) accelerators.