Investigations of the emittance and brightness of ion beams from an electron beam ion source of the Dresden EBIS type

被引：8

作者：

Silze, Alexandra ^{[1
]}

Ritter, Erik ^{[1
]}

Zschornack, Guenter ^{[1
]}

Schwan, Andreas ^{[2
]}

Ullmann, Falk ^{[2
]}

机构：

[1] Tech Univ Dresden, Inst Angew Phys, D-01062 Dresden, Germany

[2] DREEBIT GmbH, D-01109 Dresden, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2010年 / 81卷 / 02期

关键词：

electron sources; ion sources; permanent magnets; radiation therapy; solenoids; EXTRACTION;

D O I：

10.1063/1.3284512

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 The EBIS-A is the precursor to the Dresden EBIS-SC in which the permanent magnets have been replaced by superconducting solenoids for the use of the source in high-ion-current applications such as heavy-ion cancer therapy.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 C4+ 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.

引用

页数：5

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