Plasma-based multistage virtual cathode radiation

Dong, Su; Changjian, Tang

doi:10.1063/1.3672059

Home/Archive/DOE OSTI

DOE OSTI · 22047141

Plasma-based multistage virtual cathode radiation

Dong, Su·Changjian, Tang

View original source ↗Export metadata ↓

Abstract

A plasma-based multistage virtual cathode radiation is proposed. Multistage virtual cathode can be formed as an electron beam passes through a high dense ion background. The reflected electrons can be coupled with transverse magnetic wave, and electromagnetic radiation is detected. Unlike the traditional virtual cathode devices, the beam current can be decreased greatly due to the effect of ions, and single mode operation can be achieved by adjusting the beam density. Besides, the radiation frequency, which is proportional to the beam density, covers from 10 to 100 GHz. The output power flux density reaches a magnitude of GWm{sup -2}.

Explore related subjects

43 PARTICLE ACCELERATORS 70 PLASMA PHYSICS AND FUSION TECHNOLOGY BEAM CURRENTS BEAM-PLASMA SYSTEMS CATHODES ELECTRON BEAMS ELECTRONS FLUX DENSITY GHZ RANGE ION DENSITY IONS MICROWAVE RADIATION PLASMA PLASMA DENSITY

Keep this discovery

Explore connections, maps & timelines

BibTeX RIS

Dong, Su, Changjian, Tang. 2011-12-15. Plasma-based multistage virtual cathode radiation. https://doi.org/10.1063/1.3672059

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

DOE OSTI2027

Design and Integration of High Precision Superconducting Magnet Power Supply Systems

This paper reviews the design and integration approach being taken to power more than 400 superconducting magnets in Electron Ion Collider (EIC) by power supplies ranging from 20V to 400V and 100A to 18kA. A major challenge is to integrate existing legacy power supplies with new high current systems and maximize performance and reduce costs. Successful implementation requires coordinated integration of power convertors, current regulation, quench protection, energy extraction, machine protection, controls and existing accelerator infrastructure.

43 PARTICLE ACCELERATORS↗

DOE OSTI2026

Parameters of double-RF system for cooling EIC protons at injection energy

Explore the source record for details and available documents.

43 PARTICLE ACCELERATORS↗

DOE OSTI2026

Searching for the Most Harmful Field Errors in the HSR IR Superconducting Magnets

In this project, we improve beam stability for the Electron-Ion Collider. Magnetic field errors can reduce beam stability, making it essential to identify the field errors that have the greatest impact on accelerator performance. However, this is particularly challenging because beam stability depends on the complex interactions of many magnetic field errors, resulting in a high-dimensional and nonlinear optimization problem. We determine which field errors are the most influential for the large physical aperture superconducting magnet B2PF, a critical magnet in the Interaction Region (IR) in the Hadron Storage Ring (HSR). We complete and analyze nearly 30,000 simulations on the Brookhaven National Laboratory Linux Cluster by varying 18 nonlinear magnetic field errors. We evaluate beam stability using the dynamic aperture and the tune diffusion. We identify the field errors that most strongly influence beam stability and establish quantitative field error tolerances that improve accelerator performance.

43 PARTICLE ACCELERATORS↗