| 摘要 |
<p>A mass spectrometer (50) which includes an ionizing source (62), a sample holder (60) arranged in a beam path of the ionizing source (62), an ion detector (54) disposed to receive ions extracted from a sample (61) when held by the sample holder (60) and irradiated by the ionizing source (62). The mass spectrometer (50) also includes an extraction electrode (56) arranged proximate the sample holder (60), and a drift tube (58) arranged between the extraction electrode (56) and the ion detector (54). In the mass spectrometer (50), the extraction electrode (56) and the drift tube (58) are movable together relative to the sample holder (60), which is held at a fixed position.</p> |
