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Energy recovery in an optical linear collider
1Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Summary
Recovering electromagnetic energy in acceleration structures boosts efficiency. Splitting electron bunches into microbunches increases the number of accelerated electrons and suppresses unwanted modes.
Area of Science:
- Physics
- Particle Accelerators
- Electromagnetism
Background:
- Electromagnetic energy recovery is crucial for enhancing accelerator efficiency.
- Single electron bunches limit the number of accelerated particles in some configurations.
- High-order modes can negatively impact acceleration performance.
Purpose of the Study:
- To investigate the impact of electromagnetic energy recovery on acceleration structure efficiency.
- To explore methods for increasing the number of accelerated electrons.
- To analyze the effect of bunch splitting on high-order modes.
Main Methods:
- Implementing a feedback loop for electromagnetic energy recovery.
- Utilizing single electron bunch acceleration.
- Splitting a single bunch into a train of microbunches.
Main Results:
- Electromagnetic energy recovery of the fundamental mode significantly enhances efficiency.
- Using a single bunch results in a minimal increase in accelerated electrons compared to no feedback.
- Splitting the bunch into microbunches increases the number of accelerated electrons and suppresses high-order modes.
Conclusions:
- Electromagnetic energy recovery is a key factor in improving accelerator efficiency.
- Bunch splitting into microbunches is essential for maximizing particle acceleration and mitigating unwanted modes.