Injection and extraction magnets: kicker magnets

Barnes, Michael; Fowler, T.; Senaj,; Sermeus, L.; Ducimetière, L.

doi:10.48550/arxiv.1103.1583

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…The stations would introduce the curvature as well as accelerate the particles and maintain the cohesiveness of particle bunches. (This is similar to the action of the particle "kickers" in terrestrial particle accelerator facilities [76]. )…”

Section: Plasma Torussupporting

confidence: 52%

How to create an artificial magnetosphere for Mars

Bamford

Kellett

Green³

et al. 2022

Acta Astronautica

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Section: Plasma Torussupporting

confidence: 52%

How to create an artificial magnetosphere for Mars

Bamford

Kellett

Green³

et al. 2022

Acta Astronautica

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“…Due to time consumption (minutes to tens of minutes for calculation of one point), we have chosen lower density of numerically calculated points than calculated by Eq. (1). A good agreement between two methods of calculation is presented.…”

Section: Resultsmentioning

confidence: 59%

“…This method is most popular due to a very simple mathematical model, hardware and calibration. The mathematical model is a simple equation (1) where complex magnetic permeability is expressed directly [9]:…”

Section: Magnetic Spectroscopymentioning

confidence: 99%

“…The main objective of injection and extraction systems is to direct newly injected or extracted particles onto the correct trajectory. The most important components of these systems are fast kicker magnets that consist of multiple cells to approximate a transmission line, where C-shape yokes of magnetic material (typically Ni-Zn ferrites) are embedded between high voltage capacitance plates [1]. The essential parameter of ferrite is permeability, which affects the strength and homogeneity of the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of dielectric and magnetic properties of AL-800 ferrite

Rudys¹,

Balčiu̅nas²,

Vollinger³

et al. 2022

physics

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Ferrites are usually used in accelerators for tuning radiofrequency (RF) cavities and in nonreciprocal devices controlling the power flow in RF accelerating systems. The conventional parallel‐biased Ni Zn ferrites employed for varying the frequency of accelerating cavities have the disadvantage of high saturation magnetization (4πMs). Application of the transversely biased yttrium iron garnet (YIG) material in RF tuners promises a significant reduction of power loss compared with systems that use the longitudinal bias. To inject the beam and extract the beam out of the CERN accelerator rings the fast kicker magnets made from ferrite materials must be used. Power deposition in the kicker magnets can be a limitation: if the temperature of the ferrite yoke exceeds the Curie temperature, the beam will not be properly deflected. Investigation of the ferrite electromagnetic properties of materials up to the GHz frequency range is essential for a correct impedance evaluation. This report summarizes an approach for deriving electromagnetic properties as a function of both frequency and temperature of the AL-800 garnet material. This information will be useful for simulating ferrite behaviour under realistic operating conditions.

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