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Title: A fast integrated mobility spectrometer for rapid measurement of sub-micrometer aerosol size distribution, Part I: Design and model evaluation

Abstract

This study discusses, a fast integrated mobility spectrometer (FIMS) was previously developed to characterize submicron aerosol size distributions at a frequency of 1 Hz and with high size resolution and counting statistics. However, the dynamic size range of the FIMS was limited to one decade in particle electrical mobility. It was proposed that the FIMS dynamic size range can be greatly increased by using a spatially varying electric field. This electric field creates regions with drastically different field strengths in the separator, such that particles of a wide diameter range can be simultaneously classified and subsequently measured. A FIMS incorporating this spatially varying electric field is developed. This paper describes the theoretical frame work and numerical simulations of the FIMS with extended dynamic size range, including the spatially varying electric field, particle trajectories, activation of separated particles in the condenser, and the transfer function, transmission efficiency, and mobility resolution. The influences of the particle Brownian motion on FIMS transfer function and mobility resolution are examined. The simulation results indicate that the FIMS incorporating the spatially varying electric field is capable of measuring aerosol size distribution from 8 to 600 nm with high time resolution. As a result, the experimental characterizationmore » of the FIMS is presented in an accompanying paper.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1347372
Alternate Identifier(s):
OSTI ID: 1415307
Report Number(s):
BNL-113653-2017-JA
Journal ID: ISSN 0021-8502; R&D Project: 2016-BNL-EE630EECA-Budg; KP1701000
Grant/Contract Number:  
SC00112704; SC0006312; AC02-98CH10886
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Aerosol Science
Additional Journal Information:
Journal Volume: 108; Journal Issue: C; Journal ID: ISSN 0021-8502
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; fast integrated mobility spectrometer; aerosol size distribution; high time resolution; dynamic size range; electrical mobility; mobility resolution

Citation Formats

Wang, Jian, Pikridas, Michael, Spielman, Steven R., and Pinterich, Tamara. A fast integrated mobility spectrometer for rapid measurement of sub-micrometer aerosol size distribution, Part I: Design and model evaluation. United States: N. p., 2017. Web. doi:10.1016/j.jaerosci.2017.02.012.
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Wang, Jian, Pikridas, Michael, Spielman, Steven R., & Pinterich, Tamara. A fast integrated mobility spectrometer for rapid measurement of sub-micrometer aerosol size distribution, Part I: Design and model evaluation. United States. https://doi.org/10.1016/j.jaerosci.2017.02.012
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Wang, Jian, Pikridas, Michael, Spielman, Steven R., and Pinterich, Tamara. Thu . "A fast integrated mobility spectrometer for rapid measurement of sub-micrometer aerosol size distribution, Part I: Design and model evaluation". United States. https://doi.org/10.1016/j.jaerosci.2017.02.012. https://www.osti.gov/servlets/purl/1347372.
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@article{osti_1347372,
title = {A fast integrated mobility spectrometer for rapid measurement of sub-micrometer aerosol size distribution, Part I: Design and model evaluation},
author = {Wang, Jian and Pikridas, Michael and Spielman, Steven R. and Pinterich, Tamara},
abstractNote = {This study discusses, a fast integrated mobility spectrometer (FIMS) was previously developed to characterize submicron aerosol size distributions at a frequency of 1 Hz and with high size resolution and counting statistics. However, the dynamic size range of the FIMS was limited to one decade in particle electrical mobility. It was proposed that the FIMS dynamic size range can be greatly increased by using a spatially varying electric field. This electric field creates regions with drastically different field strengths in the separator, such that particles of a wide diameter range can be simultaneously classified and subsequently measured. A FIMS incorporating this spatially varying electric field is developed. This paper describes the theoretical frame work and numerical simulations of the FIMS with extended dynamic size range, including the spatially varying electric field, particle trajectories, activation of separated particles in the condenser, and the transfer function, transmission efficiency, and mobility resolution. The influences of the particle Brownian motion on FIMS transfer function and mobility resolution are examined. The simulation results indicate that the FIMS incorporating the spatially varying electric field is capable of measuring aerosol size distribution from 8 to 600 nm with high time resolution. As a result, the experimental characterization of the FIMS is presented in an accompanying paper.},
doi = {10.1016/j.jaerosci.2017.02.012},
journal = {Journal of Aerosol Science},
number = C,
volume = 108,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}
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Publisher's Version of Record
https://doi.org/10.1016/j.jaerosci.2017.02.012
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Works referenced in this record:

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    Works referencing / citing this record:

    Fast time response measurements of particle size distributions in the 3–60 nm size range with the nucleation mode aerosol size spectrometer
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    • Williamson, Christina; Kupc, Agnieszka; Wilson, James
    • Atmospheric Measurement Techniques, Vol. 11, Issue 6
    • DOI: 10.5194/amt-11-3491-2018

    Substantial convection and precipitation enhancements by ultrafine aerosol particles
    journal, January 2018

    Retrieval of high time resolution growth factor probability density function from a humidity-controlled fast integrated mobility spectrometer
    journal, June 2019

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