✦ LIBER ✦

Design and calculation of an electron impact storage ion source for time-of-flight mass spectrometers

✍ Scribed by Jiye Ximen; Zhenlin Xu; Zhixiong Liu; Hermann Wollnik

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 508 KB
Volume: 161
Category: Article
ISSN: 0168-1176
DOI: 10.1016/s0168-1176(96)04470-9

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✦ Synopsis

A new type of electron impact storage ion source has been designed for time-of-flight mass spectrometers with high mass resolving power and high sensitivity. We have worked out a set of computer programs to compute electrostatic potentials and ion trajectories. The dispersion of the flight time is about 2-3 nanoseconds, the most valuable result for the ion source. Both two-dimensional and quasi-three-dimensional maps for the configuration of the electrodes, equipotential lines and ion trajectories have been plotted. It is to be expected that the present research may be useful in designing high-performance ion sources for time-of-flight mass spectrometers.

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