- e. The relative amounts of the Plutonium isotopes 238, 239, 240 and 241 will differ slenificantly from that produced by a fission type weapon. f,. Tritiumwill be present in detectable amounts and wili indicate that it was either an original constituent of tne bomb or was generated in the explosion. ge. Carbon 14 and Argon 37 will be formed in detectable quantities in both Mike and King shots. The interpretation of any differences between the two bombs, based on these measurements, is questicnable at this time. Le Le) In this case all results will indicate a composite fission type weapon with certain exceptions of which the following two are expected to be most significant: a. Detectable amounts of tritium. bv. Abnormal amounts of natural uranium. r . Lamos“personne he Uranium 239 fissioning to any ‘appreciable extent is low, and in any event doubted that this reaction would proceed to an extent sufficient to materially alter the criteria clted in Case IT and Case IT.