The Dresden EBIT: a novel source of x‐rays from highly charged ions

Abstract

The Dresden EBIT, a source of highly charged ions, is based on electron impact ionization of primarily neutral atoms in a high‐density electron beam. Inside the source x‐radiation originates from direct excitation, radiative recombination and dielectronic recombination processes. Since the energy of the exciting electrons is tunable, specific atomic states can be prepared for particular investigations. The intensity of the x‐ray flux allows the realization of energy‐ and wavelength‐dispersive x‐ray spectrometry of highly charged ions. Spectra of helium‐ and hydrogen‐like titanium and zinc ions are shown as examples. Copyright © 2004 John Wiley & Sons, Ltd.

Atomic spectrometry update. X-ray fluorescence spectrometry

“…A novel X-ray source from highly charged ions (HCIs), generated by electron impact ionisation of primary neutron atoms in a high density electron beam, was constructed in Dresden. 7 The intensity of the X-ray flux enabled ED and WD X-ray spectrometry of HCIs and built upon the electron beam ion traps (EBITs) developed at the Lawrence Livermore National Laboratory (LLNL) some 15 years ago. When compared with other systems, the Dresden EBIT, which operated at room temperature, offered lower costs for those interested in X-ray spectrometric investigations on HCIs and may also find use as a laboratory reference source for photometric applications.…”

Time-resolved investigation of ionization processes in the Dresden Electron Beam Ion Source

“…1 and 2͒ is a room-temperature electron beam ion source ͑EBIS͒ that can produce a wide range of highly charged ions as demonstrated in earlier publications. [3][4][5][6][7][8] In order to understand the operation principle of the EBIS in detail, information on the evolution of individual ion charge states inside the highdensity electron beam is of importance. Therefore, we briefly report on a technique to study the ion charge state distribution at different ionization ͑confinement͒ times.…”