High Brightness Photo Injectors for Brilliant Light Sources

Stephan, F.; Krasilnikov, M.

doi:10.1007/978-3-319-04507-8_15-1

Synchrotron Light Sources and Free-Electron Lasers 2014

DOI: 10.1007/978-3-319-04507-8_15-1

|View full text |Cite

High Brightness Photo Injectors for Brilliant Light Sources

F. Stephan

M. Krasilnikov

Abstract: The large variety of existing and planned light sources sets specific demands on the performance of the corresponding electron injectors which requires specific solutions. In the introductory part of this chapter, a general injector layout and three types of photo emission-based electron sources will be described. In subsequent sections, different designs of electron sources providing a wide range of average electron currents from nA to 100 mA will be discussed. Basics of the experimental optimization of moder… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2015

2023

Publication Types

Select...

Article5

Relationship

Self Cite1

Independent4

Authors

Journals

Cited by 7 publications

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Preliminary study for the laboratory experiment of cosmic-rays driven magnetic field amplification

Jao

Vafin

Chen

et al. 2019

High Energy Density Physics

Self Cite

View full text Add to dashboard Cite

To understand astrophysical magnetic-field amplification, we conducted a feasibility study for a laboratory experiment of a nonresonant streaming instability at the Photo Injector Test Facility at DESY, Zeuthen site (PITZ). This non-resonant streaming instability, also known as Bell's instability, is generally regarded as a candidate for the amplification of interstellar magnetic field in the upstream region of supernova-remnant shocks, which is crucial for the efficiency of diffusive shock acceleration. In the beam-plasma system composed of a radio-frequency electron gun and a gas-discharge plasma cell, the goal of our experiment is to demonstrate the development of the non-resonant streaming instability and to find its saturation level in the laboratory environment. Since we find that the electron beam will be significantly decelerated on account of an electrostatic streaming instability, which will decrease the growth rate of desired non-resonant streaming instability, we discuss possible ways to suppress the electrostatic streaming instability by considering the characteristics of a field-emission-based quasi continuous-wave electron beam.

show abstract

Preliminary study for the laboratory experiment of cosmic-rays driven magnetic field amplification

Jao

Vafin

Chen

et al. 2019

High Energy Density Physics

Self Cite

View full text Add to dashboard Cite

show abstract

Generation of quasi continuous-wave electron beams in an L-band normal conducting pulsed RF injector for laboratory astrophysics experiments

Chen

Loisch

Groß

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

We report on an approach to produce quasi continuous-wave (cw) electron beams with an average beam current of milliamperes and a mean beam energy of a few MeV in a pulsed RF injector. Potential applications are in the planned laboratory astrophysics programs at DESY. The beam generation is based on field emission from a specially designed metallic field emitter. A quasi cw beam profile is formed over subsequent RF cycles at the resonance frequency of the gun cavity. This is realized by debunching in a cut disk structure accelerating cavity (booster) downstream of the gun. The peak and average beam currents can be tuned in beam dynamics simulations by adjusting operation conditions of the booster cavity. Optimization of the transverse beam size at specific positions (e.g., entrance of the plasma experiment) is performed by applying magnetic focusing fields provided by solenoids along the beam line. In this paper, the design of a microtip field emitter is introduced and characterized in electromagnetic field simulations in the gun cavity. A series of particle tracking simulations are conducted for multi-parametric optimization of the parameters of the produced quasi cw electron beams. The obtained results will be presented and discussed.In addition, measurements of the parasitic field emission (PFE) current (dark 1 ye.lining.chen@desy.de. current) in the PITZ gun will be exemplarily shown to distinguish its order of magnitude from the produced beam current by the designed field emitter.

show abstract

Photocathodes for High Brightness Photo Injectors

Xiang

Teichert

2015

Physics Procedia

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

High Brightness Photo Injectors for Brilliant Light Sources

Cited by 7 publications

References 52 publications

Preliminary study for the laboratory experiment of cosmic-rays driven magnetic field amplification

Preliminary study for the laboratory experiment of cosmic-rays driven magnetic field amplification

Generation of quasi continuous-wave electron beams in an L-band normal conducting pulsed RF injector for laboratory astrophysics experiments

Photocathodes for High Brightness Photo Injectors

Contact Info

Product

Resources

About