Observation of New Rydberg Series and Resonances in Doubly Excited Helium at Ultrahigh Resolution

We report on a striking improvement in spectral resolution in the soft x-ray range to 1.0meV at 64.1eV, measured via the {mu}eV-wide 2,{minus}1{sub 3} double-excitation resonance of helium. This ultrahigh resolution combined with the high photon flux at undulator beam line 9.0.1 of the Advanced Ligh...

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Veröffentlicht in:	Physical Review Letters 1996-10, Vol.77 (15), p.3086-3089
Hauptverfasser:	Schulz, K, Kaindl, G, Domke, M, Bozek, JD, Heimann, PA, Schlachter, AS, Rost, JM
Format:	Artikel
Sprache:	eng
Schlagworte:	ADVANCED LIGHT SOURCE EXCITED STATES HELIUM PHYSICS RESOLUTION RESONANCE RYDBERG STATES
Online-Zugang:	Volltext
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