Figure 1: Conceptual design of the laser-plasma SR source.
From: An ultracompact X-ray source based on a laser-plasma undulator
(a) An intense laser pulse (yellow) is focused in a gas jet. (b) The laser pulse propagates through the gas jet, trapping and accelerating an electron bunch in its wake. (c) The laser pulse ionizes the nanowires, heats their electrons and creates an electrostatic field (in blue). The trailing electron bunch wiggles in this field (red trajectories).
