primary secondary and tertiary stages of gold BINQ Mining
Apr 24, 20130183;32;Thermonuclear Weapon Designs and Later Subsections. The casing was hemispherical at one end, where the primary sphere was located . The secondary stage consisted of the exterior pusher/tamper, a standoff gap, and a . In a three stage weapon the radiation cases for the secondary and tertiary might be . produced by a nuclear explosion tantalum, cobalt, zinc, and gold.