| Paper | Title | Page |
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WEPMH4 |
Recent Progress on High Quality Electron Beam Generation through Plasma Based Acceleration at Tsinghua University | |
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| Recent progress on plasma based acceleration at Tsinghua University will be presented. On the theory and simulation part, several ideas on how to obtain high quality electron beams with extremely high brightness through wakefield acceleration will be discussed in details,including two recently published works based on ionization injection method(PRL 111,015003,2013; PRL 112,035003,2014); On the experiment part, our recent results of high quality 20-30MeV electron beams with very low energy spread, with minimal absolute energy spread of 0.18MeV RMS and relative energy spread 0.8% RMS, will be presented. The latest results on the generation of 300-430MeV high quality electron beams (2-5% energy spread) using a 50TW laser at NCU will also be discussed. | ||
WEPH29 |
Recent Progress on Plasma-based Acceleration at Tsinghua University | |
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| A unique facility for laser plasma physics and advanced accelerator research has been built recently at Tsinghua Universtiy. This system is based on Tsinghua Thomson scattering X-ray source (TTX), which combining an ultrafast TW laser with a synchronized 45MeVhigh brightness linac. In our recent laser wakeeld acceleration experiments, we have obtained 10~40MeV high quality monoenergetic electron beams by running the laser at 5TW peak power. Under certain conditions, very low relative energy spreads of a few percent can be achieved, which closes to the best published results. Absolute charge calibration for three dierent scintillating screens has also been performed using our linac system, and the typical charge of accelerated electron beams is in the picocoulomb range. | ||
THAMH1 |
Recently Progress of Tsinghua Thomson Scattering X-ray Source | |
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| In the last three years, we have successfully generated high quality hard X-ray pulse at Tsinghua Thomson scattering X-ray source. The X-ray parameters, such as flux, beam profile, energy and spectrum, were measured successfully. One of the most interesting applications, x-ray phase contrast imaging, has also demonstrated on this facility. In this paper, we will show the recent progress of this facility in detail. | ||