34.3 GHz accelerating structure for high gradient tests

Nezhevenko, O.A.; Yakovlev, V.P.; Hirshfield, J. L.; Serdobintsev, G. V.; Schelkunoff, S. V.; Persov, B.Z.

doi:10.1109/pac.2001.988274

Cited by 6 publications

(3 citation statements)

References 3 publications

(5 reference statements)

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“…For example, increasing the group velocity in the coupler and adjacent cells, and shaping of the coupler cell to reduce maximum surface electric fields below the fields in the structure. Less attention was paid to enhancement of the magnetic field in the couplers although the possibility of copper surface damage due to pulse heating was suggested in [22].…”

Section: Breakdown and Rf Magnetic Fieldsmentioning

confidence: 99%

Effect of RF Parameters on Breakdown Limits in High-Vacuum X-Band Structures

Dolgashev¹,

Tantawi²

2003

AIP Conference Proceedings

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RF breakdown is one of the major factors determining performance of high power rf components and rf sources. RF breakdown limits working power and produces irreversible surface damage. The breakdown limit depends on the rf circuit, structure geometry, and rf frequency. It is also a function of the input power, pulse width, and surface electric and magnetic fields. In this paper we discuss multi-megawatt operation of Xband rf structures at pulse width on the order of one microsecond. These structures are used in rf systems of high gradient accelerators. Recent experiments at Stanford Linear Accelerator Center (SLAC) have explored the functional dependence of breakdown limit on input power and pulse width. The experimental data covered accelerating structures and waveguides. Another breakdown limit of accelerating structures was associated with high magnetic fields found in waveguide-to-structure couplers. To understand and quantify these limits we simulated 3D structures with the electrodynamics code Ansoft HFSS and the Particle-In-Cell code MAGIC3D. Results of these simulations together with experimental data will be discussed in this paper.

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Section: Breakdown and Rf Magnetic Fieldsmentioning

confidence: 99%

Effect of RF Parameters on Breakdown Limits in High-Vacuum X-Band Structures

Dolgashev¹,

Tantawi²

2003

AIP Conference Proceedings

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“…The determination of the magnetic field of a solenoid is crucial in physics and engineering. For example, in linear accelerators such as high brilliance photoinjectors and in high gradient accelerating structures [1][2][3][4][5], in presence of the space charge, the effect of beam blow-up has to be thwarted with a solenoid. Moreover solenoid are used in magnetic correctors and steering devices for beam alignment [6].…”

Section: §1 Introductionmentioning

confidence: 99%

A Novel method to calculate the magnetic field of a Solenoid generated by a surface current element

Behtouei¹,

Spataro²,

Faillace³

et al. 2021

Preprint

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“…T HE evaluation of the magnetic field in a solenoid is important in many fields of applied physics. For example, it is used in particle accelerators to counteract the effect of beam blow-up, due to space charge, in high brilliance photoinjectors [1], [2] as well as for high gradient accelerating structures [3], [4], [5]. Moreover the use of magnetic correctors and steering devices are largely used in linear accelerators to align the trajectory of the charged beam [6].…”

Section: Introductionmentioning

confidence: 99%

A Novel Exact Analytical Expression for the Magnetic Field of a Solenoid

Behtouei¹,

Faillace²,

Spataro³

et al. 2020

Preprint

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In this paper we present the analytical calculations to derive the magnetic field of a solenoid by solving exactly a fractional integral with the use of a novel method. Starting from the Biot-Savart law, we consider a coil of negligible thickness with a stationary electric current. We derive the expressions of the on and off-axes magnetic field components. The results have been compared to some simplified and known analytical formulae as well as to a commercial numerical code showing a good agreement.

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34.3 GHz accelerating structure for high gradient tests

Cited by 6 publications

References 3 publications

Effect of RF Parameters on Breakdown Limits in High-Vacuum X-Band Structures

Effect of RF Parameters on Breakdown Limits in High-Vacuum X-Band Structures

A Novel method to calculate the magnetic field of a Solenoid generated by a surface current element

A Novel Exact Analytical Expression for the Magnetic Field of a Solenoid

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