dorsal/arxiv
View SchemaLow-Energy X-Ray Standards from Hydrogenlike Pionic Atoms
| Authors | Paul Indelicato, Leopold Simons, Detlev Gotta, Dimitri Anagnostopoulos |
|---|---|
| Categories | |
| ArXiv ID | physics/0312090 |
| URL | https://arxiv.org/abs/physics/0312090 |
| Journal | Phys.Rev.Lett. 91 (2003) 240801 |
Abstract
We demonstrate the first step of a complete program, which consists in establishing an x-ray energy standard scale with the use of few-body atoms, in the few keV range. Light pionic and muonic atoms as well as one and two-electron ions from electron-cyclotron ion sources are used. The transition energies are calculable from quantum-electrodynamics, meaning that only a very limited subset need be measured and compared with theory, while providing a large number of standard lines. Here we show that circular transitions in pionic neon atoms, completely stripped from their electrons, reveal spectral lines which are narrow, symmetric, and well reproducible. We use these lines for the energy determination of transition energies in complex electronic systems, like the K1,2 transitions in metallic Ti, which may serve as secondary standard.
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"abstract": "We demonstrate the first step of a complete program, which consists in\nestablishing an x-ray energy standard scale with the use of few-body atoms, in\nthe few keV range. Light pionic and muonic atoms as well as one and\ntwo-electron ions from electron-cyclotron ion sources are used. The transition\nenergies are calculable from quantum-electrodynamics, meaning that only a very\nlimited subset need be measured and compared with theory, while providing a\nlarge number of standard lines. Here we show that circular transitions in\npionic neon atoms, completely stripped from their electrons, reveal spectral\nlines which are narrow, symmetric, and well reproducible. We use these lines\nfor the energy determination of transition energies in complex electronic\nsystems, like the K1,2 transitions in metallic Ti, which may serve as secondary\nstandard.",
"arxiv_id": "physics/0312090",
"authors": [
"Paul Indelicato",
"Leopold Simons",
"Detlev Gotta",
"Dimitri Anagnostopoulos"
],
"categories": [
"physics.atom-ph"
],
"journal_ref": "Phys.Rev.Lett. 91 (2003) 240801",
"title": "Low-Energy X-Ray Standards from Hydrogenlike Pionic Atoms",
"url": "https://arxiv.org/abs/physics/0312090"
},
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