The Heidelberg compact electron beam ion traps
| Autor: | Alexander Egl, A. Cieluch, Robert Wolf, Lisa Buchauer, R. X. Schüssler, Sven Bernitt, Sandro Kraemer, Piet O. Schmidt, Klaus Blaum, Th. Stöhlker, S. Sturm, P. Micke, Thomas Pfeifer, Ch. Schweiger, Steffen Kühn, J. R. Harries, Daniel Hollain, Thore M. Bücking, J. R. Crespo López-Urrutia |
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| Rok vydání: | 2018 |
| Předmět: |
Accelerator Physics (physics.acc-ph)
Physics - Instrumentation and Detectors Photon Atomic Physics (physics.atom-ph) Electron beam ion traps FOS: Physical sciences Synchrotron radiation Electron 01 natural sciences Physics - Atomic Physics 010305 fluids & plasmas law.invention Ion Highly charged ions law 0103 physical sciences quantum electrodynamics ddc:530 Physics::Atomic Physics 010306 general physics Instrumentation and Methods for Astrophysics (astro-ph.IM) Instrumentation Physics Instrumentation and Detectors (physics.ins-det) Laser Physics - Plasma Physics Synchrotron Plasma Physics (physics.plasm-ph) Photoexcitation Cathode ray Physics::Accelerator Physics Physics - Accelerator Physics Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik Präzisionsexperimente - Abteilung Blaum Atomic physics Astrophysics - Instrumentation and Methods for Astrophysics |
| Zdroj: | Review of Scientific Instruments 89 (2018), Nr. 6 Review of Scientific Instruments |
| ISSN: | 1089-7623 0034-6748 |
| Popis: | Electron beam ion traps (EBIT) are ideal tools for both production and study of highly charged ions (HCI). In order to reduce their construction, maintenance, and operation costs we have developed a novel, compact, room-temperature design, the Heidelberg Compact EBIT (HC-EBIT). Four already commissioned devices operate at the strongest fields (up to 0.86 T) reported for such EBITs using permanent magnets, run electron beam currents up to 80 mA and energies up to 10 keV. They demonstrate HCI production, trapping, and extraction of pulsed Ar$^{16+}$ bunches and continuous 100 pA ion beams of highly charged Xe up to charge state 29+, already with a 4 mA, 2 keV electron beam. Moreover, HC-EBITs offer large solid-angle ports and thus high photon count rates, e. g., in x-ray spectroscopy of dielectronic recombination in HCIs up to Fe$^{24+}$, achieving an electron-energy resolving power of $E/\Delta E > 1500$ at 5 keV. Besides traditional on-axis electron guns, we have also implemented a novel off-axis gun for laser, synchrotron, and free-electron laser applications, offering clear optical access along the trap axis. We report on its first operation at a synchrotron radiation facility demonstrating resonant photoexcitation of highly charged oxygen. Comment: 20 pages, 18 figures, 1 table |
| Databáze: | OpenAIRE |
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