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	<title>hard X-rays &#8211; BIOENGINEER.ORG</title>
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		<title>Record-Breaking Attosecond Hard X-Ray Flashes Bring Electron Motion Into Focus</title>
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		<pubDate>Sat, 17 Oct 2026 14:26:12 +0000</pubDate>
				<category><![CDATA[Chemistry]]></category>
		<category><![CDATA[amplified spontaneous emission]]></category>
		<category><![CDATA[attosecond pulses]]></category>
		<category><![CDATA[electron dynamics]]></category>
		<category><![CDATA[European XFEL]]></category>
		<category><![CDATA[fluence]]></category>
		<category><![CDATA[hard X-rays]]></category>
		<category><![CDATA[Kirkpatrick–Baez optics]]></category>
		<category><![CDATA[nonlinear X-ray interactions]]></category>
		<category><![CDATA[Optica]]></category>
		<category><![CDATA[peak intensity]]></category>
		<category><![CDATA[ultrafast science]]></category>
		<category><![CDATA[X-ray free-electron laser]]></category>
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					<description><![CDATA[Researchers at the European XFEL have produced hard X-ray attosecond pulses with record intensity and fluence, focused to a spot 100,000 times smaller than a human hair, enabling new studies of electron dynamics in atoms and molecules.]]></description>
		
		
		
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