ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
The reflex mode of electron beam ion source (EBIS) operation can provide repeated use of electrons, emitted by the gun cathode both for sequential ionization of positive ions and for creation of negative space charge to keep ions in an electrostatic ion trap of the source. This mode of operation provides as well a corresponding decrease of a consumed electric power compared to the electron beam power in the normal mode of EBIS operation. The studies of the reflex mode resulted in an observation of a transition to the so-called electron string state. Electron energy distributions in the strings differ from those in electron beams. Electron strings are used for production of highly charged ions. The sequence of the ion production in a string is the same as in an electron beam. The first review of experimental methods and experimental results, including the latest ones and of the first attempts to give a theoretical description of the reflex mode, is presented. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1150301
