"Physics package" is a euphemism for the portion of a nuclear weapon that includes the actual explosive portion of the weapon: the detonator explosives, the fissile material, and (for fusion weapons) fusion fuel.
Many nuclear weapons are built in a modular fashion, with the same physics package being used for several different warhead applications. For example, the physics package of the B61 nuclear bomb is also used in the W80ALCM warhead, W81 for the cancelled nuclear Standard SM-2 SAM, W84GLCM warhead, and W85Pershing II missile.
In the package as recited in claim 9 wherein the magnetic field is a non-uniform magnetic bias field generated by a direct current carried by windings within the cavity resonator.
The physicspackage of an atomic frequency standard of the non-atomicbeam optically-pumped type cqmmonly includes a microwave cavity resonator, an isotopic filter cell, an absorption cell, a light source, a photodetector, temperature control means, and at least one magnetic shield surrounding these components.
A further object of the subject invention is to provide a physicspackage having means for defining a microwave cavity resonator for shielding from magnetic fields produced outside the cavity resonator, the atoms therein undergoing a hyperfine transition that serves as an atomic frequency reference.
The physicspackage is the portion of a nuclear weapon that includes the actual explosive portion of the weapon: the detonator explosives, the fissile material, and (for fusion weapons) fusion fuel.
Many nuclear weapons are built in a modular fashion, with the same physicspackage being used for several different warhead applications.
For example, the physicspackage of the B61 nuclear bomb is also used in the W80 ALCM warhead, W81 for the cancelled nuclear Standard SM-2 SAM, W84 GLCM warhead, and W85 Pershing II missile.
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