Molecular fragmentation by electron impact investigated using a time delayed spectroscopic technique

被引：18

作者：

Ferreira, Natalia ^{[1
]}

Sigaud, L. ^{[1
]}

Montenegro, E. C. ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Fs, BR-21941 Rio De Janeiro, Brazil

来源：

XXVIII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC) | 2014年 / 488卷

关键词：

D O I：

10.1088/1742-6596/488/1/012042

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new technique based on time-of-flight mass spectrometry with delayed extraction, in which it is possible to determine the amount of ions with a given energy distribution, is presented. Unlike most techniques designed to measure the energy distribution of molecular fragments, its sensitivity is higher in the low range of the energy distribution, for ions with kinetic energy from thermal energy up to 3 eV. In this progress report we show that this technique is able to open new perspectives for mass spectrometry based on the well established TOF technique, presenting some selected results for collisions of electrons with energy between 15 eV and 400 eV with N-2, O-2 and CHClF2, which have interesting features involving their low energy fragments.

引用

页数：7

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