Scaling LawA mathematical relationship, which permits the effects of a nuclear (or atomic) explosion of given energy yield to be determined as a function of distance…
scanA picture of structures inside the body. Scans often used in diagnosing, staging, and monitoring disease include liver scans, bone scans, and computed…
Scan TypeThe path made in space by a point on the radar beam; for example, circular, helical, conical, spiral, or sector.
SCARLETSolar Concentrator Arrays with Refractive Linear Element Technology.
ScatteringThe process in which a beam of light is diffused or deflected by collisions with particles suspended in the atmosphere.
SCUDSmall, ragged, low cloud fragments that are unattached to a larger cloud base and often seen with and behind cold fronts and thunderstorm gust fronts.
SDS ElementA stand-alone system (e.g., a weapon or satellite), which is the smallest entity capable of performing a designated function with, specified results…
Second Strike CapabilityThe ability to survive a first strike with sufficient resources to deliver an affective counterblow (generally associated with nuclear weapons).
Secondary StationA station that has been selected to receive a transmission from the primary station.
Security ArchitectureThe portion of the baseline SDS architecture that is responsible for preserving the confidentiality, integrity, and assured service of any of the…
Security CriteriaThe set of requirements that should be met so the security system can provide a maximum degree of effective deterrence at the lowest cost.
Security LevelThe combination of hierarchical classification and a set of non-hierarchical categories that represents the sensitivity of information.
Security PolicyThe set of laws, rules, and practices that regulate how an organization manages, protects, and distributes sensitive information.
Security ProgramThe implementation of formal security policies and procedures established by DoD and other departmental publications to secure vital components of weapon…
Security Relevant EventAny event that attempts to change the security state of the system. Also, any event that attempts to violate the security policy of the system.
Security SubsystemThat part of a weapon or defense system, which is added specifically for the performance of security, functions and not categorized as components of other…
Security SystemThe aggregate of all mechanical and electronic equipment countermeasures in a system which contributes to its security from intelligence gathering and…
Security TestingA process used to determine that the security features of a system are implemented as designed and that they are adequate for a proposed application…