Evaluation of a fourth-generation focal plane camera for use in plasma-source mass spectrometry

Abstract

A fourth-generation focal plane camera containing 1696 Faraday-strip detectors was fitted to a Mattauch-Herzog mass spectrograph and characterized for its performance with inductively coupled plasma ionization. The camera provides limits of detection in the single to tens of ng L À1 range for most elements and has a linear dynamic range of at least nine orders of magnitude. Isotope-ratio precision better than 0.02% has also been achieved with this device, and this fourth-generation system features the broadest simultaneous mass range obtainable to date with this family of focal plane camera detectors.

Order of Magnitude Signal Gain in Magnetic Sector Mass Spectrometry Via Aperture Coding

“…The current work using 1D apertures shows increased throughput compared with the 2D apertures because of elimination of aperture fabrication constraints discussed in the 2D coding demonstration. Furthermore, while the 2D system requires 2D detection capability (such as provided by an MCP, phosphor screen, and digital camera combination), the 1D coding scheme is compatible with recently developed 1D ion detector arrays [11,12]. This will allow for easier implementation in eventual fieldable units.…”

Distance-of-Flight Mass Spectrometry: A New Paradigm for Mass Separation and Detection

“…It was originally designed to operate on the focal plane of a Mattauch-Herzog mass spectrograph (16). The FPC-512 is the third in a series of increasingly sophisticated detector arrays built for simultaneous, wide-spectrum mass-spectral detection (17)(18)(19)(20)(21), but it serves very well in the DOFMS instrument, demonstrating the superior performance of this type of detector and the practicality of using such detectors in commercial DOFMS systems. The 512 detector strips make a detector array that is only 6.4 mm long.…”

Extension of the focusable mass range in distance‐of‐flight mass spectrometry with multiple detectors

“…The two detectors used were a focal‐plane camera with 512 channels (FPC‐512) and a microchannel‐plate (MCP)/phosphor detector assembly. The FPC‐512 is the third in a series of four generations of solid‐state ion detector arrays developed for use with a Mattauch‐Herzog mass spectrograph . The design and performance characteristics of the FPC‐512 array have been discussed elsewhere .…”