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We report an ultrafast piezoelectric switch for synchrotron x rays. A thin epitaxial film of piezoelectric Pb(Zr,Ti)O3 works as a diffractive optical switch at frequencies from dc to >1GHz. The broad frequency range allows single bunches of synchrotron x rays to be selected in an arbitrary sequence. The piezoelectric effect introduces mechanical strains of a fraction of 1% in the Pb(Zr,Ti)O3 film, which can be used for blocking or passing diffracted x rays.
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Grigoriev et al. (2006) studied this question.
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