Fig. 6 | Nature Communications

Fig. 6

From: Demonstration of a beam loaded nanocoulomb-class laser wakefield accelerator

Fig. 6

Scaling of charge within FWHM with laser power. Circles represent measured data points taken with a nitrogen doping of 1% at a plasma density of 3.1 × 1018 cm−3. The error bars represent the s.e.m. The red curve represents a fit following the expected \({{Q}} \propto \sqrt {\rm{P}} \) dependency. The relative energy spread measured to be 15% for all measurement points

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