Publications [#357675] of Michael E. Gehm

Papers Published

1. Amsden, JJ; Herr, PJ; Vyas, R; Horvath, K; Kirley, MP; Li, X; Parker, CB; Keil, AD; Carlson, JB; Edwards, SJ; Sperline, RP; Denton, MB; Stoner, BR; Gehm, ME; Glass, JT, Prototype coded aperture miniature mass spectrometer for environmental sensing, AQM 2019 - Air Quality Measurement Methods and Technology Conference 2019 (January, 2019)
   (last updated on 2024/12/31)

   Abstract:
   © 2019 Air and Waste Management Association. All rights reserved. In summary, this paper shows the design and initial performance characterization of a coded aperture miniature mass spectrometer for environmental sensing (CAMMS-ES). CAMMS-ES incorporates spatial aperture coding to break the throughput vs. resolution tradeoff in mass spectrometer miniaturization, and is designed to detect molecules in the mass range of 12-120 amu. Results indicate that the detection limits for methane and toluene using a membrane inlet sample introduction system are 14 ppm and 80 ppb respectively.