arXiv subjects

Frank Gerigk

Publications and source records attributed to Frank Gerigk.

4 recordsLinked to original sources

arXiv2026

RF Basics I & II

This lecture starts with a brief historical introduction and an explanation how to get from Maxwell's Equations to a simple cavity. After simplifying and adapting the equations for their application to Radio Frequency problems, the most important formulae and characteristics for cavities and wave-guides are derived. The most common figures of merit are explained and some of the different cavity types are introduced. The alternative description of cavities as a lumped circuit model is then introduced, which is often used to characterise the cavity-coupler-generator interplay.

physics.acc-ph↗

arXiv2015

Multipacting Simulations of Tuner-adjustable waveguide coupler (TaCo) with CST

Tuner-adjustable waveguide couplers (TaCo) are used to feed microwave power to different RF structures of LINAC4. This paper studies the multipacting phenomenon for TaCo using PIC solver of CST PS. Simulations are performed for complete field sweeps and results are analysed.

physics.acc-ph↗

arXiv2013

RF Basics I and II

Maxwell's equations are introduced in their general form, together with a basic set of mathematical operations needed to work with them. After simplifying and adapting the equations for application to radio frequency problems, we derive the most important formulae and characteristic quantities for cavities and waveguides. Several practical examples are given to demonstrate the use of the derived equations and to explain the importance of the most common figures of merit.

physics.acc-ph↗

arXiv2011

Cavity types

In the field of particle accelerators the most common use of RF cavities is to increase the particle velocity of traversing particles. This feature makes them one of the core ingredients of every accelerator, and in the case of linear accelerators they are even the dominant machine component. Since there are many different types of accelerator, RF cavities have been optimized for different purposes and with different abilities, e.g., cavities with fixed or variable RF frequency, cavities for short or long pulses/CW operation, superconducting and normal-conducting cavities. This lecture starts with a brief historical introduction and an explanation on how to get from Maxwell's equations to a simple cavity. Then, cavities will be classified by the type of mode that is employed for acceleration, and an explanation is given as to why certain modes are used in particular cavity types. The lecture will close with a comparison of normal versus superconducting cavities and a few words on the actual power consumption of superconducting cavities.

physics.acc-ph↗