Simulation and analysis of solenoidal ion sources

被引：25

作者：

Alderwick, A. R. ^{[1
]}

Jardine, A. P. ^{[1
]}

Hedgeland, H. ^{[1
]}

MacLaren, D. A. ^{[1
]}

Allison, W. ^{[1
]}

Ellis, J. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 12期

关键词：

finite element analysis; ion sources; plasma sources;

D O I：

10.1063/1.3030858

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present a detailed analysis and simulation of solenoidal, magnetically confined electron bombardment ion sources, aimed at molecular beam detection. The aim is to achieve high efficiency for singly ionized species while minimizing multiple ionization. Electron space charge plays a major role and we apply combined ray tracing and finite element simulations to determine the properties of a realistic geometry. The factors controlling electron injection and ion extraction are discussed. The results from simulations are benchmarked against experimental measurements on a prototype source.

引用

页数：9

共 19 条

[11] Tubular electron beam ion source [J].

Donets, ED ;

Donets, EE ;

Donets, DE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (02) :696-698

[12] Thermal energy 3He spin-echo spectrometer for ultrahigh resolution surface dynamics measurements -: art. no. 053109 [J].

Fouquet, P ;

Jardine, AP ;

Dworski, S ;

Alexandrowicz, G ;

Allison, W ;

Ellis, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2005, 76 (05)

[13] Ion source with longitudinal ionization of a molecular beam by an electron beam in a magnetic field [J].

Kalinin, A. V. ;

Rusin, L. Yu. ;

Toennies, J. P. .

INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2006, 49 (05) :709-713

[14]

MacLaren DA, 2004, INST PHYS CONF SER, P383

[15] A mass spectrometer for routine isotope abundance measurements [J].

Nier, AO .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1940, 11 (07) :212-216

[16] Effect of magnetic field in electron-impact ion sources and simulation of electron trajectories [J].

Park, Chang J. ;

Ahn, Jong R. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2006, 77 (08)

[17] MOLECULAR BEAM ELECTRON BOMBARDMENT DETECTOR [J].

WEISS, R .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1961, 32 (04) :397-&

[18] Superimposition of a magnetic field around an ion guide for electron ionization time-of-flight mass spectrometry [J].

Yue, BF ;

Lee, ED ;

Rockwood, AL ;

Lee, ML .

ANALYTICAL CHEMISTRY, 2005, 77 (13) :4167-4175

[19] Electron ionization in superimposed magnetic and radio frequency quadrupolar electric fields [J].

Yue, BF ;

Lee, ED ;

Rockwood, AL ;

Lee, ML .

ANALYTICAL CHEMISTRY, 2005, 77 (13) :4160-4166

← 1 2 →