Speaker
Description
Microbunching - or short-wavelength – instabilities are well-known for drastic reduction of the beam quality, its filamentation and strong amplification of the noise in a beam. Space charge and coherent synchrotron radiation (CSR) are the leading causes for such instability. I will present rigorous 3D theory of such instabilities driven by the space-charge forces and define the condition when our theory is applicable for an arbitrary accelerator system with 3D coupling. Finally, I will derive a linear integral equation describing such instability and identify conditions it can be reduced to an ordinary second order differential equation. I will illustrate this theory with a few examples of computer simulations. This work is extension of the theory developed in [1].
Footnotes
[1] 3D Theory of Microscopic Instabilities Driven by Space-Charge Forces, Vladimir N Litvinenko, Yichao Jing, Jun Ma, Irina Petrushina, Kai Shih, Gang Wang, Physical Review Accelerators and Beams 26, No.5, 054402, 2022
Funding Agency
This work is supported by the US DOE HEP Award DESC0020375
