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Олег Давыдов (Редактор отдела «Интернет и СМИ»)
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What he was soon to discover was that the clue to the 12-year-old's location was hidden in plain sight.
Current X-ray lasers require facilities that are kilometres long. A cavity-based set-up about 66 metres in length has been developed that uses highly reflective mirrors to enable the generation of high-intensity pulses of narrow-band X-ray radiation. This promises to overcome the limitations of current X-ray lasers.