Proposal of a femtosecond megahertz repetition-rate electron diffraction instrument based on the Chinese Academy of Engineering Physics terahertz free electron laser beamline.
Zheng ZhouDai WuHan ChenYingChao DuWenhui HuangMing LiPublished in: The Review of scientific instruments (2018)
We report the design and optimization of a femtosecond electron diffraction instrument with megahertz repetition-rate. The proposed instrument is mainly based on the photoinjector of the Chinese Academy of Engineering Physics Terahertz free electron laser facility, which merges a 320 kV DC photocathode gun with two 4-cell super-conducting linac operating at 1.3 GHz. Simulations show that high quality electron probes with fC charge, ultralow emittance, and femtosecond scale bunch duration can be generated. Together with the capability of operating at continuous wave mode, this instrument is well matched with the demand of future electron diffraction.
Keyphrases
- electron microscopy
- solar cells
- electron transfer
- patient reported outcomes
- small molecule
- single cell
- high speed
- molecular dynamics
- cell therapy
- magnetic resonance
- bone marrow
- mesenchymal stem cells
- current status
- immune response
- photodynamic therapy
- fluorescence imaging
- high resolution
- image quality
- dual energy
- long term care