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The physics basis for an electron-beam based Compton scattering (ECOS) x-raysource is investigated for single-shot experiments at major high energy densityfacilities such as the Omega Laser Facility, National Ignition Facility, and Zpulsed power facility. A source of monoenergetic ($\delta\epsilon/\epsilon <5\%$) 10- to 50-keV x rays can be produced by scattering of a short-pulseoptical laser by a 23- to 53-MeV electron beam and collimating the scatteredphotons. The number and spectrum of scattered photons is calculated as afunction of electron packet charge, electron and laser pulse duration, laserintensity, and collision geometry. A source with greater than 10$^{10}$ photonsin a 1-mm radius spot at the OMEGA target chamber center and 100-ps timeresolution is plausible with the available electron gun and laser technology.Design requirements for diffraction, inelastic scattering and imagingexperiments as well as opportunities for improved performance are discussed.

An electron-beam based Compton scattering x-ray source for probing high-energy-density physics