Development of wakefield accelerating structures at ultra-high frequencies (Final Report)
The development of a multi-TeV e+e- linear collider is a key priority set by the P5 panel, which established the long-term strategy of the U.S. HEP program. A TeV linear collider could help answer critical physics questions beyond the standard model. Among the various accelerator technologies that have been investigated over the years for such a collider, the AAC Roadmap identified three of the most promising approaches: laser wakefield acceleration (LWFA), plasma wakefield acceleration (PWFA), and structure wakefield acceleration (SWFA). A type of SWFA, known as the Two-Beam Acceleration (TBA), uses a high-charge low-energy drive beam to generate a wakefield in an rf decelerator to accelerate a low-charge high-energy main beam in a parallel structure. The TBA is one of the most promising candidates due to its potential for achieving high efficiency by structure optimization and the ability to accelerate particles with positive and negative charges. While most previous and ongoing work focuses on the microwave frequency range (under 30 GHz) there is great interest in pushing the structure beyond 100 GHz as both the generated wakefield and the accelerating gradient are proportional to frequency. In addition, there is also an urgent need to use short drive bunches to generate 100 ps to ~ ns rf pulses to mitigate rf breakdown so as to further increase the accelerating gradient.
- Research Organization:
- radiabeam technologies
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0020935
- OSTI ID:
- 1843434
- Type / Phase:
- SBIR (Phase I)
- Report Number(s):
- DOE-RBT-1AMW
- Country of Publication:
- United States
- Language:
- English
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