Irradiation Qualification Testing of SNAP 10A components

Technical Report · Mon Feb 03 23:00:00 EST 1964

DOI:https://doi.org/10.2172/982037· OSTI ID:982037

Chesavage, A. J. ^[1]

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1. North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.

Selected SNAP 10^A components were irradiated to about 10¹⁴NVT and 5 x 10⁷ R at an average temperature of 136°F in a nominal vacuum of 2 x 10^-5TORR. The components were operated periodically and the electrical characteristics recorded. Pre-irradiation and post-irradiation tests were conducted. Catastrophic degradation occurred only in the low-level neutron detection system and about 1.5 x 10¹³NVT and in the high-level neutron power supply at about 6 x10¹²NVT. Marginal degradation occurred in the fusistors and in the silicone rubber insert material in connectors. The relays, low-voltage trip devices, expansion compensator position demodulator, resistance thermometer sensor and bridge, and the gamma detection system operated within their respective specifications during and after irradiation. The insulation resistance of all components was adequate during and after irradiation.

• Research Organization: North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: AT(11-1)-GEN-8
• OSTI ID: 982037
• Report Number(s): NAA-SR--MEMO-9746; NAA-SR-TDR-9746
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NESDPS
Office of Nuclear Energy Space and Defense Power Systems