25 January 2001 X-ray FEL: an experimenter's dilemma
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The specifications of presently proposed x-ray free electron lasers (FELs) are for machines that will provide x-ray pulses as short as 100 fs with a photon energy as high as 12.3keV. Since the pulse will contain as much as 13 mJ of energy, these devices will present the experimenter with an opportunity to expose matter to an unprecedented x-ray energy density. This high concentration of energetic x-rays presents both a promising frontier in energy-matter interaction, as well as a technological crevasse to be crossed by the experimenter attempting to use the FEL beam. We shall look at three possible problems confronting the experimenter: (1) synchronization of a detector, laser pulse, etc., to the FEL pulse; (2) radiation damage to the target sample; and (3) the presence of an electromagnetic pulse that could damage sensitive electronics located in the experimental area.
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Armon McPherson, Armon McPherson, } "X-ray FEL: an experimenter's dilemma", Proc. SPIE 4143, X-Ray FEL Optics and Instrumentation, (25 January 2001); doi: 10.1117/12.413689; https://doi.org/10.1117/12.413689

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