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  • Title: Investigations of the emittance and brightness of ion beams from an electron beam ion source of the Dresden EBIS type.
    Author: Silze A, Ritter E, Zschornack G, Schwan A, Ullmann F.
    Journal: Rev Sci Instrum; 2010 Feb; 81(2):023303. PubMed ID: 20192488.
    Abstract:
    We have characterized ion beams extracted from the Dresden EBIS-A, a compact room-temperature electron beam ion source (EBIS) with a permanent magnet system for electron beam compression, using a pepper-pot emittance meter. The EBIS-A is the precursor to the Dresden EBIS-SC in which the permanent magnets have been replaced by superconducting solenoids for the use of the source in high-ion-current applications such as heavy-ion cancer therapy. Beam emittance and brightness values were calculated from data sets acquired for a variety of source parameters, in leaky as well as pulsed ion extraction mode. With box shaped pulses of C(4+) ions at an energy of 39 keV root mean square emittances of 1-4 mm mrad and a brightness of 10 nA mm(-2) mrad(-2) were achieved. The results meet the expectations for high quality ion beams generated by an electron beam ion source.
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