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Preserving beam quality during the transportation of high-brightness electron beams is a significant and widespread challenge in the design of modern accelerators. The importance of this issue stems from the fact that the quality of the…

Accelerator Physics · Physics 2024-05-27 Xiuji Chen , Si Chen , Dong Wang

An understanding of collective effects is of fundamental importance for the design and optimisation of the performance of modern accelerators. In particular, the design of an accelerator with strict requirements on the beam quality, such as…

Particle accelerators support a wide array of scientific, industrial, and medical applications. To meet the needs of these applications, accelerator physicists rely heavily on detailed simulations of the complicated particle beam dynamics…

Accelerator Physics · Physics 2022-03-16 Auralee Edelen , Christopher Mayes

The coherent synchrotron radiation (CSR) of a high brightness electron beam traversing a series of dipoles, such as transport or recirculation arcs, may result in the microbunching instability ({\mu}BI). To accurately quantify the direct…

Accelerator Physics · Physics 2015-05-08 Cheng-Ying Tsai , David Douglas , Rui Li , Chris Tennant

Coherent Synchrotron Radiation can severely limit the performance of accelerators designed for high brightness and short bunch length. Examples include light sources based on ERLs or FELs, and bunch compressors for linear colliders. In…

Accelerator Physics · Physics 2015-05-13 David Sagan , Georg Hoffstaetter , Christopher Mayes , Udom Sae-Ueng

Coherent Synchrotron Radiation (CSR) can play an important role by not only increasing the energy spread and emittance of a beam, but also leading to a potential instability. Previous studies of the CSR induced longitudinal instability were…

Accelerator Physics · Physics 2009-11-10 Juhao Wu , G. V. Stupakov , T. O. Raubenheimer , Zhirong Huang

Coherent synchrotron radiations (CSR) emitted by a high-brightness electron beam during transport in a bending magnet is a double-edged sword in electron accelerators. While CSR contributes to a stronger radiation field than the incoherent…

Accelerator Physics · Physics 2024-04-01 Bingxi Liu , Cheng-Ying Tsai , Yi Jiao , Weihang Liu , Fancong Zeng , Weilun Qin

A new model is presented for simulating coherent synchrotron radiation (CSR) in one dimension. The method is based on convolving an integrated Green function (IGF) with the longitudinal charge density. Since it is based on an IGF, the…

Accelerator Physics · Physics 2012-02-27 Robert D. Ryne , Bruce Carlsten , Ji Qiang , Nikolai Yampolsky

The electromagnetic radiation of a rotating relativistic electron layers is studied numerically using particle-in-cell simulation. The results of the simulation confirm all relevant scaling properties predicted by theoretical models. These…

Astrophysics · Physics 2007-05-23 Bjoern S. Schmekel

The self-consistent nonlinear dynamics of a relativistic charged particle beam interacting with its complete self-fields is a fundamental problem underpinning many of the accelerator design issues in high brightness beam applications, as…

Accelerator Physics · Physics 2022-06-01 C. -K. Huang , F. -Y. Li , H. N. Rakotoarivelo , B. Shen , J. Domine , B. Carlsten , G. Dilts , R. Garimella , T. Kwan , R. Robey

Emission of light by a single electron moving on a curved trajectory (synchrotron radiation) is one of the most well-known fundamental radiation phenomena. However experimental situations are more complex as they involve many electrons,…

Longitudinal impedances at high frequencies, which extend far beyond the width of the beam spectrum, can pose a threat to the performance of modern low-emittance electron storage rings, as they can establish a relatively low threshold for…

Accelerator Physics · Physics 2024-05-30 Sara Dastan , Demin Zhou , Takuya Ishibashi , Emanuel Karantzoulis , Simone Di Mitri , Ryan Lindberg

The proposed High-Energy LHC project presents an unusual combination of strong synchrotron radiation (SR) damping and intrabeam scattering (IBS), which is not seen in present-day hadron colliders. The subject of investigation reported in…

Accelerator Physics · Physics 2011-08-09 A. Valishev

Beam quality preservation during transport of high-brightness electron beams is of general concern in the design of modern accelerators. Methods to manage incoherent synchrotron radiation (ISR) have been in place for decades; as beam…

Accelerator Physics · Physics 2014-03-11 D. R. Douglas , S. V. Benson , A. Hutton , G. A. Krafft , R. Li , G. R. Neil , Y. Roblin , C. D. Tennant , C. -Y. Tsai

The coherent synchrotron radiation (CSR) effect in a bending path plays an important role in transverse emittance dilution in high-brightness light sources and linear colliders, where the electron beams are of short bunch length and high…

Accelerator Physics · Physics 2015-06-11 Xiyang Huang , Yi Jiao , Gang Xu , Xiaohao Cui

We study coherent synchrotron radiation (CSR) in a perfectly conducting vacuum chamber of rectangular cross section, in a formalism allowing an arbitrary sequence of bends and straight sections. We apply the paraxial method in the frequency…

Accelerator Physics · Physics 2016-06-09 Robert L. Warnock , David A. Bizzozero

Recent measurements of the coherent synchrotron radiation (CSR) effects indicated that the observed beam emittance growth and energy modulation are often bigger than previous predictions based on Gaussian longitudinal charge distributions.…

Accelerator Physics · Physics 2007-05-23 R. Li

The most significant advances in the accelerator-based light sources (i.e., x-ray free electron lasers) are driven by the production of the high final peak current in the last several decades. As a prerequisite to attain the proposed high…

Accelerator Physics · Physics 2024-03-19 Fancong Zeng , Yi Jiao , Weihang Liu , Cheng-Ying Tsai

Coherent synchrotron radiation (CSR) is crucial for the development of powerful ultrashort light sources. We present a mechanism for generating CSR in the form of generalised superradiance, based on surface plasmon polaritons (SPPs), which…

We develop a general model of coherent synchrotron radiation (CSR) impedance with shielding provided by two parallel conducting plates. This model allows us to easily reproduce all previously known analytical CSR wakes and to expand the…

Accelerator Physics · Physics 2016-05-04 Gennady Stupakov , Demin Zhou
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