dorsal/arxiv
View SchemaPhotodetachment of cold OH- in a multipole ion trap
| Authors | S. Trippel, J. Mikosch, R. Berhane, R. Otto, M. Weidemüller, R. Wester |
|---|---|
| Categories | |
| ArXiv ID | physics/0607248 |
| URL | https://arxiv.org/abs/physics/0607248 |
| DOI | 10.1103/PhysRevLett.97.193003 |
Abstract
The absolute photodetachment cross section of OH- anions at a rotational and translational temperature of 170K is determined by measuring the detachment-induced decay rate of the anions in a multipole radio-frequency ion trap. In comparison with previous results, the obtained cross section shows the importance of the initial rotational state distribution. Using a tomography scan of the photodetachment laser through the trapped ion cloud, the derived cross section is model-independent and thus features a small systematic uncertainty. The tomography also yields the column density of the OH- anions in the 22-pole ion trap in good agreement with the expected trapping potential of a large field free region bound by steep potential walls.
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"abstract": "The absolute photodetachment cross section of OH- anions at a rotational and\ntranslational temperature of 170K is determined by measuring the\ndetachment-induced decay rate of the anions in a multipole radio-frequency ion\ntrap. In comparison with previous results, the obtained cross section shows the\nimportance of the initial rotational state distribution. Using a tomography\nscan of the photodetachment laser through the trapped ion cloud, the derived\ncross section is model-independent and thus features a small systematic\nuncertainty. The tomography also yields the column density of the OH- anions in\nthe 22-pole ion trap in good agreement with the expected trapping potential of\na large field free region bound by steep potential walls.",
"arxiv_id": "physics/0607248",
"authors": [
"S. Trippel",
"J. Mikosch",
"R. Berhane",
"R. Otto",
"M. Weidem\u00fcller",
"R. Wester"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.97.193003",
"title": "Photodetachment of cold OH- in a multipole ion trap",
"url": "https://arxiv.org/abs/physics/0607248"
},
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