Speaker
Description
To build a compact injector for free-electron lasers, colliders or storage rings, we require beam metrics that are difficult to realize together in laser wakefield accelerators. Experiments have demonstrated high charge and emittance control independently, but none so far has demonstrated sub-percent energy spread at high charge or efficiency. Although gas jets and shock injection have provided very low energy spread in the past, they are disfavored by high repetition rate operation. For this reason, we compare engineering the current profile using density ramp steepness and contrast at injection, and controlling emittance and longitudinal phase space at the exit ramp. Our goal is to sketch laser, plasma and accelerator design requirements and tensions in delivering high bunch charge (100s of pC), sub-percent energy spread, and normalized transverse emittance below 0.1 mm mrad.
| Working group | WG1 |
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