Abstract
The peaks in the spectrum of coherent bremsstrahlung from MeV-GeV electrons in crystalline targets are split into components if the target is a strained-layer superlattice (SLS). We have studied this effect theoretically for an illustrative example; it also entails that when the crystal is rocked, a contrary motion of the split components takes place. Due to their strong dependence on beam orientation relative to a channel axis, these new predicted phenomena should provide a sensitive measure of the strains in SLS layers; but because of the broadening of the photon peaks in thin layers, good observability will be restricted to superlattice layers with a thickness of several hundred Å or more.
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