提高小型化四极杆质谱仪的灵敏度

IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243) Pub Date : 2001-11-29 DOI:10.1109/IECON.2001.976470

B. Wilamowski, D. Bell, S. Legowski, Y. Abdelkader

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引用次数: 1

摘要

提出了一种新型的两级质量滤波器，其中第一级工作在DC/RF模式，第二级工作在RF模式。这种设计可以具有非常高的质量分辨率，并且可能不需要高精度的机械和电子设计。介绍了一种集成了超大规模集成电路芯片和法拉第杯的离子探测器。极低偏置电流、差分和窄频带工作使信噪比显著提高。

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Enhancing the sensitivity of miniaturized quadrupole mass spectrometers

A novel two stage mass filter where the first stage operates in DC/RF mode and second in RF only mode is proposed. This design can be characterized by very high mass resolution and may not require high precision mechanical and electronic design. An ion detector by integrating a VLSI chip with a Faraday cup is described. Extremely low biasing currents, differential and narrow frequency band operation resulted in significant improvement of the signal to noise ratio.

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IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)

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