Technical Issues Related to the Comprehensive Nuclear Test by National Academy of Sciences, Policy and Global Affairs,

By National Academy of Sciences, Policy and Global Affairs, Committee on International Security and Arms Control, Committee on Technical Issues Related to Ratification of the Comprehensive Nuclear Test Ban Treaty

Drawing upon the enormous current physique of technical fabric concerning the excellent try out Ban Treaty, the nationwide Academy of Sciences reviewed and assessed the most important technical concerns that arose in the course of the Senate debate over treaty ratification. specifically, those comprise: the capability of the us to take care of self assurance within the safeguard and reliability of its nuclear stockpile within the absence of nuclear trying out; the nuclear-test detection functions of the foreign tracking process (with and with out augmentation through nationwide platforms and instrumentation in use for medical reasons, and considering the probabilities for decoupling nuclear explosions from surrounding geologic media); and the additions to their nuclear-weapons features that different international locations may in attaining via nuclear trying out at yield degrees that would break out detection, and the impression of such additions at the protection of the USA.

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Additional info for Technical Issues Related to the Comprehensive Nuclear Test Ban Treaty

Example text

Nuclear weapons with their thousands of individual components are complex both in function and design. Failure of a critical component can lead to total system failure. This has led to assertions that, in the absence of nuclear testing, the safety and reliability of the STOCKPILE STEWARDSHIP CONSIDERATIONS: SAFETY AND RELIABILITY UNDER A CTBT 23 weapon cannot be guaranteed. This belief is erroneous on several counts. Most importantly, the vast majority of weapon components are not integral to the nuclear subsystem and can therefore be tested under a CTBT.

As a result of these efforts the current stockpile is believed to meet the vulnerability requirements established at the height of the Cold War. Laboratory simulation and analysis as new technologies are introduced into future non-nuclear component designs can provide verification of these radiation hardness levels under a CTBT. The previous discussion allows two important conclusions to be drawn regarding existing weapon reliability: (1) Weapon reliability is dominated by the non-nuclear system elements, which are testable under a CTBT; and (2) Confidence in the continued reliability of the nuclear subsystem can be maintained by ensuring that in any future rebuilds, especially of the primary, the original specifications are adhered to closely.

Several stockpile weapons, as well as a nuclear-test-validated alternate weapon system, feature so-called “fire-resistant” pit designs that provide containment of molten plutonium in fuel-fire environments. Nonetheless, it is clear that the most effective way to prevent plutonium dispersal is to minimize the likelihood of energetic accidents that would cause plutonium to be spread beyond the accident site. The exposure to such accidents is greatest during weapon transport, and the potential consequences are much greater for air shipments than for road or rail shipments in protective transporters.

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Technical Issues Related to the Comprehensive Nuclear Test by National Academy of Sciences, Policy and Global Affairs,
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