31 citations · 71 across the 7 of their papers we have counts for
7 papers
Measurement of undulator section wakefield at the SXFEL test facility
He Liu, Hanxiang Yang, Nanshun Huang +5
In free electron laser facilities, almost every kind of device will generate wakefield when an electron beam passes through it. Most of the wakefields are undesired and have a nega…
Numerical Study on Beam-based Alignment of SXFEL Undulator Lattice
Liang Xu, Nanshun Huang, Qingmin Zhang +2
The undulator line of the Shanghai soft X-ray Free-electron Laser facility (SXFEL) has very tight tolerances on the straightness of the electron beam trajectory. However, the beam…
Direct evidence of the gradient drift instability being the origin of a rotating spoke in a crossed field plasma
Liang Xu, Denis Eremin, Ralf Peter Brinkmann
A plasma rotating spoke in a crossed field discharge is studied using 2D radial-azimuthal fully kinetic Particle-In-Cell Monte Carlo Collision (PIC/MCC) simulations. The kinetic mo…
Self-acceleration and energy channeling in the saturation of the ion-sound instability in a bounded plasma
Liang Xu, Andrei Smolyakov, Salomon Janhunen +1
A novel regime of the saturation of the Pierce-type ion-sound instability in bounded ion-beam-plasma system is revealed in 1D PIC simulations. It is found that the saturation of th…
Three-dimensional modeling magneto-optical trapping of MgF molecule with multilevel rate equations
Supeng Xu, Meng Xia, Ruoxi Gu +4
We present a theoretical study of magneto-optical trapping (MOT) force exerted on magnesium monofluoride (MgF) with 3D rate equations, in which we have considered the complex vibra…
Theoretical investigation of the HgF radical towards laser cooling and eEDM measurement
Zhenghai Yang, Jing Li, Qinning Lin +4
In order to realize more sensitive eEDM measurement, it would be worthwhile to find some new laser-cooled molecules with larger internal effective electric field (E), highe…
Analytical model of three regimes of cold cathode breakdown in helium
Liang Xu, Alexander V. Khrabrov, Igor D. Kaganovich +1
An analytical model has been developed to map out the low-pressure (left-hand) branch of the Paschen curve at very high voltage when electrons are in the runaway regime and charge…