INTEGRATED CAPACITOR TRANSIMPEDANCE AMPLIFIER

摘要

Spectrometers including integrated capacitive detectors are described. An integrated capacitive detector integrates ion current from the collector (220) into a changing voltage. The detector includes a collector configured to receive ions in the spectrometer, a dielectric (228), and a plate (232) arranged in an overlapping configuration with collector on an opposite side of the dielectric. The detector also includes an amplifier (226).

主权项

1. A spectrometer comprising:
a detector including:
a collector having a first side and a second side, the first side being configured to detect ions that drifted toward the collector;a dielectric element proximate the second side;an amplifier having an input and an output; anda capacitive plate element proximate the dielectric element and opposite the collector, the capacitive plate element being coupled with the output of the amplifier.