Supported by National Natural Science Foundation of China(10675116);Major State Basic Research Development Programme of China(2011CB808301)
In PASER (particle acceleration by stimulated emission of radiation), in the presence of an active medium incorporated in a Penning trap, moving electrons can become bunched, and as they get enough energy, they esca...
Supported by National Natural Science Foundation of China(10675116);Major State Basic Research Development Programme of China(2011CB808301)
In particle acceleration by stimulated emission of radiation(PASER), efficient interaction occurs when a train of micro-bunches has periodicity identical to the resonance frequency of the medium. Previous theoretica...
Supported by National Nature Science Foundation of China(10675116);Major State Basic Research Development Programme of China(2011CB808301)
Using the Hefei Light Source phase Ⅱ project (HLS- Ⅱ) as an example, a theoretical analysis of shortening the bunch lengths using a higher harmonic cavity (HHC) is given. The threshold voltage of an active HHC a...
Supported by National Natural Science Foundation of China(10675116);Major State Basic Research Development Programme of China(2011CB808301)
A simulation code that executes the tracking of longitudinal oscillations of the bunches for the double rf system of the Hefei Light Source Ⅱ Project (HLS-Ⅱ) is presented to estimate the mean beam lifetime and the...
Supported by National Natural Science Foundation of China (10675116);Major State Basic Research Development Programme of China(2011CB808301)
A higher-harmonic cavity will be used to increase the beam lifetime and suppress coupled-bunch instabilities for Hefei Light Source-II. In this paper, results simulated by the particle-tracking model confirm that tuni...
Supported by National Natural Science Foundation of China (10675116);Major State Basic Research Development Programme of China (2011CB808301)
A passive higher harmonic cavity (HHC) will be used in the Hefei Light Source II Project (HLS- II) to lengthen the bunch and consequently increase the beam lifetime dominated by Touschek scattering. The effects of...
supported by the National Natural Science Foundation of China (Grant No. 10675116);the Major State Basic Research Development Programme of China (Grant No. 2011CB808301)
The band gap of a photonic crystal (PhC) cavity intrinsically avoids HOM problems. In this paper, we present a new PBG structure based on the possible advantage of using hybrid structures and aperiodic lattices. This ...