Prompt radiation-induced conductivity in polyurethane foam and glass microballoons

Technical Report · Sun Jun 01 00:00:00 EDT 2014

DOI:https://doi.org/10.2172/1200673· OSTI ID:1200673

Hartman, E. Frederick ^[1]; Zarick, Thomas Andrew ^[1]; Sheridan, Timothy J. ^[1]; Preston, Eric F. ^[2]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
2. ITT Exelis Mission Systems, Colorado Springs, CO (United States)

We performed measurements and analyses of the prompt radiation-induced conductivity (RIC) in thin samples of polyurethane foam and glass microballoon foam at the Little Mountain Medusa LINAC facility in Ogden, UT. The RIC coefficient was non-linear with dose rate for polyurethane foam; however, typical values at 1E11 rad(si)/s dose rate was measured as 0.8E-11 mho/m/rad/s for 5 lb./cu ft. foam and 0.3E-11 mho/m/rad/s for 10 lb./cu ft. density polyurethane foam. For encapsulated glass microballoons (GMB) the RIC coefficient was approximately 1E-15 mho/m/rad/s and was not a strong function of dose rate.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); ITT Exelis Mission Systems,, Colorado Springs, CO
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1200673
• Report Number(s): SAND2014-4308; 520336
• Resource Relation: Conference: Naples (Italy), 3-5 Jun 2014
• Country of Publication: United States
• Language: English