Description

This one-day course provides a comprehensive introduction to the subject of contamination control, with specific applications to the aerospace industry.

It is intended to provide insight on methods to

(a) quantify the cleanliness level required by various contamination sensitive surfaces,

(b) predict the end-of-life contamination level seen by those surfaces, and

(c) identify the contamination control techniques required to ensure mission success.

Course Outline:

Molecular Contamination

• Effects of Molecular Films
  • Effects on Reflecting or Radiating Surfaces
  • Effects on Transmitting Surfaces
  • Quantifying Molecular Contamination Levels
  • Generation, Transportation, and Deposition of Molecular Contaminants
  • Synergistic Effects
    • Photochemically Enhanced Deposition
    • Estimating End of Life Molecular Cleanliness Requirements
      • Examples: Optical Sensors; Solar Arrays; Thermal Control Surfaces
      • Predicting End of Life Molecular Cleanliness Levels
        • Mass Loss; Mass Exitance; View Factors; Deposition; Comparison to Requirements
        • Design Guidelines for Controlling Molecular Contamination

Particulate Contamination

• Effects of Particulates
  • Surface Obscuration-Effects on Reflecting Surfaces
  • Surface Obscuration-Effects on Transmitting Surfaces
  • Scattering

Particulate Contamination, continued

• Quantifying Particulate Contamination Levels
  • Percent Area Coverage
  • Bidirectional Reflectance Distribution Function (BRDF)
  • Generation, Transportation, and Deposition
    • Air Quality
    • Particle Redistribution during Launch and On-Orbit Operations
    • Estimating End of Life Particle Cleanliness Requirements
      • Example: Optical Surfaces; Solar Arrays; Thermal Control Surfaces
      • Predicting End of Life Particulate Cleanliness Levels
      • Design Guidelines for Controlling Particulate Contamination

Contamination Control

• Preventing Contamination
  • Spacecraft Design
  • Optical Payload Accommodation
  • Ground Equipment
  • Manufacturing, Assembly, and Test
  • Monitoring Contamination
    • Molecular Contamination
    • Air Quality
    • Particulate Contamination
    • Cleaning Contaminated Surfaces
      • Removing Molecular Films
      • Removing Particulates
      • Maintaining Surface Cleanliness
        • Storage
        • Transportation
        • Accident Recovery

Launch and Orbital Operations

Who Should Attend:

Engineers with responsibility for the design and development of contamination sensitive systems or the facilities where they are assembled and tested.

Instructor(s):

Dr. Alan C. Tribble has provided space environments effects analysis to more than one dozen NASA, DoD, and commercial programs, including the International Space Station, the Global Positioning System (GPS) satellites, and several surveillance spacecraft. He holds a Ph.D. in Physics from the University of Iowa and has been twice a Principal Investigator for the NASA Space Environments and Effects Program. He is the author of four books, including the course text: Fundamentals of Contamination Control (Society of Photo-Optical Instrumentation Engineers Tutorial Text) and over 50 additional technical publications. He has served as an Associate Editor of the Journal of Spacecraft and Rockets and is an Associate Fellow of the AIAA and a Senior Member of the IEEE. Dr. Tribble also won the 2008 AIAA James A. Van Allen Space Environments Award. He has taught a variety of classes at the University of Southern California, California State University Long Beach, the University of Iowa, and has been teaching courses on space environments and effects since 1992.