Multipactor in 4 rod crab cavities : 46th European Microwave Conference, EuMC 2016

Burt, G. and Constable, D. and Hall, B. (2017) Multipactor in 4 rod crab cavities : 46th European Microwave Conference, EuMC 2016. In: 46th European Microwave Conference (EuMC), 2016, 2016-10-04 - 2016-10-06, ExCel Conference Centre.

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Abstract

Multipactor is a limiting factor in many SRF cavities due to the additional heat load and power absorption. In this paper we study multipactor in 4 rod crab cavities, which have deflecting rather than accelerating fields. The particles are tracked in CST Particle Studio for three different secondary emission yields (SEY) to differentiate between hard and soft multipacting barriers. It is shown that multipacting barriers exist at a transverse voltage of 2 MV for high SEY materials but that these trajectories do not appear with lower SEY materials suggesting that they will process away. © 2016 EuMA.

Item Type:

Contribution to Conference (Other)

Journal or Publication Title:

46th European Microwave Conference (EuMC), 2016

Additional Information:

Conference code: 126027 Export Date: 28 July 2017 References: Palmer, R.B., (1988) Report no SLAC-PUB-4707; Hall, B., (2012) Designing the Four Rod Crab Cavity for the High-Luminosity LHC Upgrade, , PhD Thesis, Lancaster University, Sept; Yla-Oijala, P., (1999) Part. Accel., 63, p. 105; http://www.cst.com/; Burt, G., Dexter, A.C., (2012) Prediction of Multipactor in the Iris Region of Deflecting Mode Cavities, , PRST-AB, Jan

Subjects:

?? componentsecondary emissionaccelerating fieldsmultipactingpower absorptionsecondary emission yieldmicrowaves ??

Departments:

Faculty of Science and Technology > Engineering

ID Code:

87210

Deposited By:

ep_importer_pure

Deposited On:

31 Jul 2017 08:28

Refereed?:

Yes

Published?:

Published

Last Modified:

15 Jul 2024 08:32

URI:

https://eprints.lancs.ac.uk/id/eprint/87210