Picture of smart phone

Open Access research that is better understanding human-computer interaction...

Strathprints makes available scholarly Open Access content by researchers in the Department of Computer & Information Sciences, including those researching information retrieval, information behaviour, user behaviour and ubiquitous computing.

The Department of Computer & Information Sciences hosts The Mobiquitous Lab, which investigates user behaviour on mobile devices and emerging ubiquitous computing paradigms. The Strathclyde iSchool Research Group specialises in understanding how people search for information and explores interactive search tools that support their information seeking and retrieval tasks, this also includes research into information behaviour and engagement.

Explore the Open Access research of The Mobiquitous Lab and the iSchool, or theDepartment of Computer & Information Sciences more generally. Or explore all of Strathclyde's Open Access research...

Hot spots and dark current in advanced plasma wakefield accelerators

Manahan, G. G. and Deng, A. and Karger, O. and Xi, Y. and Knetsch, A. and Litos, M. and Wittig, G. and Heinemann, T. and Smith, J. and Sheng, Z. M. and Jaroszynski, D. A. and Andonian, G. and Bruhwiler, D. L. and Rosenzweig, J. B. and Hidding, B. (2016) Hot spots and dark current in advanced plasma wakefield accelerators. Physical Review Special Topics: Accelerators and Beams, 19 (1). ISSN 1098-4402

[img]
Preview
Text (Manahan-etal-PRAB-2016-Hot-spots-and-dark-current-in-advanced-plasma)
Manahan_etal_PRAB_2016_Hot_spots_and_dark_current_in_advanced_plasma.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo

Download (5MB) | Preview

Abstract

Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionization threshold levels in the plasma media. These electrons may be trapped inside the plasma wake and will then accumulate dark current, which is generally detrimental for a clear and unspoiled plasma acceleration process. Strategies for generating clean and robust, dark current free plasma wake cavities are devised and analyzed, and crucial aspects for experimental realization of such optimized scenarios are discussed.