dorsal/arxiv
View SchemaRadiative recombination of bare Bi83+: Experiment versus theory
| Authors | A. Hoffknecht, C. Brandau, T. Bartsch, C. Boehme, H. Knopp, S. Schippers, A. Mueller, C. Kozhuharov, K. Beckert, F. Bosch, B. Franzke, A. Kraemer, P. H. Mokler, F. Nolden, M. Steck, Th. Stoehlker, Z. Stachura |
|---|---|
| Categories | |
| ArXiv ID | physics/0003088 |
| URL | https://arxiv.org/abs/physics/0003088 |
| DOI | 10.1103/PhysRevA.63.012702 |
| Journal | Phys.Rev. A63 (2000) 012702 |
Abstract
Electron-ion recombination of completely stripped Bi83+ was investigated at the Experimental Storage Ring (ESR) of the GSI in Darmstadt. It was the first experiment of this kind with a bare ion heavier than argon. Absolute recombination rate coefficients have been measured for relative energies between ions and electrons from 0 up to about 125 eV. In the energy range from 15 meV to 125 eV a very good agreement is found between the experimental result and theory for radiative recombination (RR). However, below 15 meV the experimental rate increasingly exceeds the RR calculation and at Erel = 0 eV it is a factor of 5.2 above the expected value. For further investigation of this enhancement phenomenon the electron density in the interaction region was set to 1.6E6/cm3, 3.2E6/cm3 and 4.7E6/cm3. This variation had no significant influence on the recombination rate. An additional variation of the magnetic guiding field of the electrons from 70 mT to 150 mT in steps of 1 mT resulted in periodic oscillations of the rate which are accompanied by considerable changes of the transverse electron temperature.
{
"annotation_id": "a083795e-f945-4fa4-b913-89b7d6427631",
"date_created": "2026-03-02T18:00:29.323000Z",
"date_modified": "2026-03-02T18:00:29.323000Z",
"file_hash": "d8219921f90ad214d8be7c1e9a3f6b79b3b0947ae53705997a62eb4b4f1cb339",
"private": false,
"record": {
"abstract": "Electron-ion recombination of completely stripped Bi83+ was investigated at\nthe Experimental Storage Ring (ESR) of the GSI in Darmstadt. It was the first\nexperiment of this kind with a bare ion heavier than argon. Absolute\nrecombination rate coefficients have been measured for relative energies\nbetween ions and electrons from 0 up to about 125 eV. In the energy range from\n15 meV to 125 eV a very good agreement is found between the experimental result\nand theory for radiative recombination (RR). However, below 15 meV the\nexperimental rate increasingly exceeds the RR calculation and at Erel = 0 eV it\nis a factor of 5.2 above the expected value. For further investigation of this\nenhancement phenomenon the electron density in the interaction region was set\nto 1.6E6/cm3, 3.2E6/cm3 and 4.7E6/cm3. This variation had no significant\ninfluence on the recombination rate. An additional variation of the magnetic\nguiding field of the electrons from 70 mT to 150 mT in steps of 1 mT resulted\nin periodic oscillations of the rate which are accompanied by considerable\nchanges of the transverse electron temperature.",
"arxiv_id": "physics/0003088",
"authors": [
"A. Hoffknecht",
"C. Brandau",
"T. Bartsch",
"C. Boehme",
"H. Knopp",
"S. Schippers",
"A. Mueller",
"C. Kozhuharov",
"K. Beckert",
"F. Bosch",
"B. Franzke",
"A. Kraemer",
"P. H. Mokler",
"F. Nolden",
"M. Steck",
"Th. Stoehlker",
"Z. Stachura"
],
"categories": [
"physics.atom-ph",
"physics.acc-ph"
],
"doi": "10.1103/PhysRevA.63.012702",
"journal_ref": "Phys.Rev. A63 (2000) 012702",
"title": "Radiative recombination of bare Bi83+: Experiment versus theory",
"url": "https://arxiv.org/abs/physics/0003088"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "4f0f2014-1ac9-47f7-a16e-229203e35373",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}