High-throughput injection-acceleration of electron bunches from a linear accelerator to a laser wakefield accelerator [electronic resource]
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Full Text (via OSTI) |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Argonne, Ill. : Oak Ridge, Tenn. :
United States. Department of Energy. Chicago Operations Office ; Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2021.
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| Subjects: |
| Abstract: | Plasma-based accelerators (PBAs) driven by either intense lasers (laser wakefield accelerators, LWFAs) or particle beams (plasma wakefield accelerators, PWFAs), can accelerate charged particles at extremely high gradients compared to conventional radio-frequency (RF) accelerators. In the past two decades, great strides have been made in this field, making PBA a candidate for next-generation light sources and colliders. However, these challenging applications necessarily require beams with good stability, high quality, controllable polarization and excellent reproducibility. To date, such beams are generated only by conventional RF accelerators. As such, it is important to demonstrate the injection and acceleration of beams first produced using a conventional RF accelerator, by a PBA. In some recent studies on LWFA staging and external injection-acceleration in PWFA only a very small fraction (from below 0.1% to few percent) of the injected charge (the coupling efficiency) was accelerated. For future colliders where beam energy will need to be boosted using multiple stages, the coupling efficiency per stage must approach 100%. Here we report the first demonstration of external injection from a photocathode-RF-gun-based conventional linear accelerator (LINAC) into a LWFA and subsequent acceleration without any significant loss of charge or degradation of quality, which is achieved by properly shaping and matching the beam into the plasma structure. Furthermore, this is an important step towards realizing a high-throughput, multi-stage, high-energy, hybrid conventional-plasma accelerator. |
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| Item Description: | Published through Scitech Connect. 03/18/2021. "Journal ID: ISSN 1745-2473." ": US2205299." Wu, Yipeng ; Hua, Jianfei ; Zhou, Zheng ; Zhang, Jie ; Li, Shuang ; Peng, Bo ; Fang, Yu ; Fang, Xiaonan ; Nie, Zan ; Li, Fei ; et al. Univ. of California, Los Angeles, CA (United States) USDOE. Chinese Academy of Sciences (CAS) |
| Physical Description: | Size: p. 801-806 : digital, PDF file. |