Shield Optimization Program: Part 4. Effects of Neutron and gamma-Ray Radiations from Nuclear Weapons on SBI (Space Based Interceptor) Weapon Platforms

摘要

Initial studies have been completed to estimate the radiation induced damage in silicon based electronic components onboard a representative Space Based Interceptor (SBI) weapon platform. The SBI weapon platform model used in the studies represents the author's concept of such a system. The analysis was completed for neutrons and gamma rays emanating from a nuclear weapon detonation in space. Results indicate dose levels to the sensitive components within the SBI weapon platform may exceed design limits if the weapon is detonated within a critical radius. For example, a 1962 Starfish detonation at a distance of 91.4 km from the SBI weapon platform generates a total dose in the central instrument bay of 964 rads(Si). The dose rate, /dot /gamma//, assuming a 40 nsec deposition time, is 1 /times/ 10 sup 10 rads(Si)/sec. All of the calculations were carried out for an unshielded SBI weapon platform to determine the radiation levels for which shielding must be designed to ensure survivability of the electronic systems. 10 refs., 7 figs., 13 tabs. (ERA citation 14:018156)