包括离子源，质量过滤器和至少一个离子检测器，所述质量过滤器和离子检测器的质谱仪不设置在对准横向偏移到彼此。 如图1中所示，是设置在细长的静电基本上圆柱形的径向引导场的质量过滤器（10）和离子检测器（12），该离子之间（具有一个轴向对中围绕其轴线（16）的椭圆状的螺旋路径导向箱速度分量到检测器的输入 12）。

Mass spectrometer with an ion source, a mass filter and at least one ion detector, said mass filter and ion detector are not aligned to each other laterally displaced. As Fig. 1 shows, between mass filter (10) and ion detector (12) is arranged an elongated electrostatic, substantially cylindrical radial guide field, the ions with the leadership field axial velocity component in elliptical helical paths around its axis (16) to the input of the detector ( 12).