Plasma diagnosis in a miniature penning ion source by a mass-energy analyer

Author

Fei Yan ; Dazhi Jin ; Lei Chen ; Xiang Wan

Author_Institution

Inst. of Electron. Eng., Mianyang, China

fYear

2015

fDate

27-29 April 2015

Firstpage

1

Lastpage

2

Abstract

Penning-type ion source performance for neutron generator applications is characterized partly by the atomic ion fraction. A miniature Penning ion source has been fabricated to investigate the atomic ion fraction of the deuterium plasma by a mass-energy analyer. The energy for the mass settings of 2 and 4, corresponding to D⁺ and D₂⁺ ions respectively, show Guass distributions. The results show that the atomic ion fraction could vary from 2.26% to 5.63% by changing the pressure, the anode voltage and the discharge current. The results can provide useful information for the choosing of the discharge conditions.

Keywords

Penning discharges; deuterium; ion sources; mass spectrometer accessories; plasma diagnostics; Guass distributions; Penning-type ion source performance; anode voltage; atomic ion fraction; deuterium plasma diagnosis; discharge current; mass-energy analyer; neutron generator applications; Deuterium; Ionization; Vacuum arcs; Valves; Penning ion source; atomic ion fraction; deuterium plasma;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Conference_Location

Beijing

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7223900

Filename

7223900