Test plan for engineering scale electrostatic enclosure demonstration Page: 26 of 46
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4.4.2 Scanning Electron Microscope
Filter and ESC samples will be examined with an SEM to determine the composition, size
distribution, and shape of the particles. Particles collected on ESC devices will also be scanned with
the SEM to determine if they are of the same size distribution as that of the aerosol.
The SEM is a JEOL, model JXA-840, and has the following capabilities:
" Magnification from 10 to 300,000x
" Acceleration voltage from 500 to 30,000 V
" Image modes are secondary electron imaging mode, compositional mode using back
scattered electrons, and dot mapping using x-ray emissions
. Has an energy dispersive spectrometer
" Has a wave length dispersive spectrometer.
4.5 Soil
The experiments will be run with poly dispersed PuO2 blended with INEL soil so that the
mixture has less than 2 nCi/g activity. In preparation of the blend, the soil is dried to a low moisture
condition (less than 10% moisture content by weight) that maximizes resuspension of the soil. The
poly dispersed PuO2 will provide a range of particle sizes for use in evaluating efficiency of the ESC
separation process. The PuO2 blended INEL soil will be prepared by the Inhalation Toxicology
Research Institute at Albuquerque, New Mexico.15
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Meyer, L. C. Test plan for engineering scale electrostatic enclosure demonstration, report, February 1, 1993; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc1317964/m1/26/?rotate=270: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.