Design and comparison of superconducting rf gun cavities and beam dynamics for linear electron accelerators

Yildiz, H. Duran; Porsuk, D.; Cakir, R.; Tugay, Halime

doi:10.1016/j.nima.2019.05.053

Cited by 3 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2) There are at least three important mechanisms that would lead to the collapse of the beam. Firstly, the collapse of the envelope will happen quickly if the inherent parameters of the PBS could not satisfy focusing equation (9). Secondly, the beam envelope must be constrained within the boundary of the PBS system, otherwise, it will bring about complex particle interaction and the collapse of the electron beam.…”

Section: Discussionmentioning

confidence: 99%

“…The beam that satisfies this criteria has gain application in many fields, such as free-electron lasers [1][2][3], THz sources [4,5], silicon nanocrystal [6], radiotherapy [7] and so on. Until now, many meaningful methods that have been developed in recent years such as permanent magnet [8], superconductor magnetic [9], solenoid coil [10], and plasma-based system [11] have been implemented to further improve the beam quality [12,13]. Besides, plasmabased system is considered as more promising for its compact, tunable and affordable device with high (GV m -1 ) accelerating electric fields [14,15], which first drew attention from the low voltage beam propagating in residual gas tube in 1934 [16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Focusing characteristics of the relativistic electron beam transmitting in ion channel

Xia

Yang

Chen

et al. 2020

Plasma Sci. Technol.

View full text Add to dashboard Cite

Based on the beam-plasma system model established in this paper, the trajectory of the electron beam in the ion channel is studied quantitatively through the envelope equation. Under different initial system parameters, the focusing transmission conditions of the beam in the ion channel are discussed. Then, a series of particle-in-cell simulations are performed, which generally versifies the theoretical results and shows some further details of the focusing behavior of the beam. It is found that the deceleration of some electrons around the focusing point or the beam-plasma interaction at the ion channel boundary will result in the generation of the residual electrons, which forms the electron return current that leads to the new instabilities influencing the focusing characteristics of the beam.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Focusing characteristics of the relativistic electron beam transmitting in ion channel

Xia

Yang

Chen

et al. 2020

Plasma Sci. Technol.

View full text Add to dashboard Cite

show abstract

Beam dynamic studies at accelerator system of gun for a self-amplified spontaneous emission free electron laser project

Yildiz¹,

Porsuk²,

Yıldız³

et al. 2022

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

Current reflux from an electron beam transmitted in a plasma ion channel

et al. 2021

View full text Add to dashboard Cite

In this paper, the mechanism by which current reflux forms from a plasma-focused electron beam is studied theoretically and numerically by considering nonlinear interactions between the beam and plasma. We demonstrate that a moving virtual cathode can be generated at the end of a plasma ion channel due to the influence of the boundary plasma electrons on the beam, and that this accounts for reflux formation. In addition, the reflux formation condition is derived and analyzed via the beam envelope and space-charge-limited current theories. The results indicate that the virtual cathode tends to form at defocusing positions of the beam. Particle-in-cell simulations are used to verify the theoretical results and to show that the beam divergence and energy spread increase during current reflux formation.

show abstract

Design and comparison of superconducting rf gun cavities and beam dynamics for linear electron accelerators

Cited by 3 publications

References 3 publications

Focusing characteristics of the relativistic electron beam transmitting in ion channel

Focusing characteristics of the relativistic electron beam transmitting in ion channel

Beam dynamic studies at accelerator system of gun for a self-amplified spontaneous emission free electron laser project

Current reflux from an electron beam transmitted in a plasma ion channel

Contact Info

Product

Resources

About