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首页> 外文会议>INMM annual meeting >Seven Channel Multi-collector Isotope Ratio Mass Spectrometer
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Seven Channel Multi-collector Isotope Ratio Mass Spectrometer

机译：七通道多收集器同位素比率质谱仪

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A new magnetic sector mass spectrometer that utilizes seven full-sized discrete dynode electron multipliers operating simultaneously has been designed, constructed and is in preliminary testing. The instrument utilizes a newly developed ion dispersion lens that enables the mass dispersed individual isotope beams to be separated sufficiently (35 mm) to allow a full-sized discrete dynode pulse counting multiplier to be used for each beam. The ion dispersion lens is a two element electrostatic 90 degree sector device that causes the beam-to-beam dispersion to increase faster than the intra-beam dispersion. Each multiplier is contained in an isolated case with a deflector/condenser lens at the entrance. A 9-sample filament cartridge is mounted on a micro-manipulator two-axis stage that enables adjustment of the filament position with 10 micron resolution within the ion lens. Results of initial testing with actinides will be presented.
机译：已经设计，构造了一种新的磁扇区质谱仪，该质谱仪利用七个同时运行的全尺寸离散倍增极电子倍增器，目前正在初步测试中。该仪器采用了最新开发的离子分散透镜，该离子分散透镜能够将质量分散的单个同位素束充分分离（35毫米），以允许对每个束使用全尺寸的离散打拿极脉冲计数倍增器。离子分散透镜是两元素静电90度扇形器件，它使束对束的色散比束内的色散快。每个乘法器都装在隔离的外壳中，入口处有一个偏转器/聚光镜。 9个样品的灯丝盒安装在微操纵器的两轴位移台上，该位移台能够以10微米的分辨率调节离子透镜内灯丝的位置。将显示使用initial系元素的初始测试结果。

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