dorsal/arxiv
View SchemaPrecision Spectroscopy at Heavy Ion Ring Accelerator SIS300
| Authors | H. Backe |
|---|---|
| Categories | |
| ArXiv ID | physics/0701056 |
| URL | https://arxiv.org/abs/physics/0701056 |
| DOI | 10.1007/978-3-540-71113-1_6 |
Abstract
Unique spectroscopic possibilities open up if a laser beam interacts with relativistic lithium-like ions stored in the heavy ion ring accelerator SIS300 at the future Facility for Antiproton and Ion Research FAIR in Darmstadt, Germany. At a relativistic factor gamma = 36 the 2P 1/2 level can be excited from the 2S 1/2 ground state for any element with frequency doubled dye-lasers in collinear geometry. Precise transition energy measurements can be performed if the fluorescence photons, boosted in forward direction into the X-ray region, are energetically analyzed with a single crystal monochromator. The hyperfine structure can be investigated at the 2P 1/2 - 2S 1/2 transition for all elements and at the 2P 3/2 - 2S 1/2 transition for elements with Z < 50. Isotope shifts and nuclear moments can be measured with unprecedented precision, in principle even for only a few stored radioactive species with known nuclear spin. A superior relative line width in the order of 5E-7 may be feasible after laser cooling, and even polarized external beams may be prepared by optical pumping.
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"abstract": "Unique spectroscopic possibilities open up if a laser beam interacts with\nrelativistic lithium-like ions stored in the heavy ion ring accelerator SIS300\nat the future Facility for Antiproton and Ion Research FAIR in Darmstadt,\nGermany. At a relativistic factor gamma = 36 the 2P 1/2 level can be excited\nfrom the 2S 1/2 ground state for any element with frequency doubled dye-lasers\nin collinear geometry. Precise transition energy measurements can be performed\nif the fluorescence photons, boosted in forward direction into the X-ray\nregion, are energetically analyzed with a single crystal monochromator. The\nhyperfine structure can be investigated at the 2P 1/2 - 2S 1/2 transition for\nall elements and at the 2P 3/2 - 2S 1/2 transition for elements with Z \u003c 50.\nIsotope shifts and nuclear moments can be measured with unprecedented\nprecision, in principle even for only a few stored radioactive species with\nknown nuclear spin. A superior relative line width in the order of 5E-7 may be\nfeasible after laser cooling, and even polarized external beams may be prepared\nby optical pumping.",
"arxiv_id": "physics/0701056",
"authors": [
"H. Backe"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1007/978-3-540-71113-1_6",
"title": "Precision Spectroscopy at Heavy Ion Ring Accelerator SIS300",
"url": "https://arxiv.org/abs/physics/0701056"
},
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