A Real-Time Fallout Monitor for 5–250 Micrometer Particles

  • Peter G. Borden
  • Jon Munson
  • Donald W. Bartelson


In many assembly and clean room applications it is desirable to continuously monitor fallout or sedimentation of large particles, typically greater than 5 microns in diameter. The accepted technique for monitoring sedimentation today is to collect particles on a witness plate and count them at periodic intervals. In many cases, however, it is important to observe sedimentation in real-time. For example, in a location where machinery operates, real-time monitoring can provide immediate warning of a problem.


Critical Surface Overhead Crane Collection Plate Kennedy Space Saturday Afternoon 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Peter G. Borden
    • 1
  • Jon Munson
    • 1
  • Donald W. Bartelson
    • 2
  1. 1.High Yield TechnologyMountain ViewUSA
  2. 2.Lockheed Space Operations CompanyKennedy Space CenterUSA

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