I was looking into a old method of decay antimatter synthesis I hadn't looked into for many years which is Sodium 22 Transmutation and Beta positive Decay synthesis of Antimatter. The Idea is in a particle accelerator you could transmute Aluminum 27 into Sodium 22 by accelerating protons into solid Aluminum targets using a particle accelerator at 32 Mev which would produce the Isotope Sodium 22 from nuclear transmutation much like bombarding Solid Uranium 238 with fast neutrons making Plutonium 239. The formula for Aluminum 27 proton bombardment is (P+) + Al27 --> Na22 + He4 + 2(P+). The Harvard Manual on Na22 Synthesis = http://adsabs.harvard.edu/abs/1954PhRv...93..280B Now from Sodium 22 we can generate antimatter when it decays in the form of Positrons as Sodium 22 goes through Beta Positive Decay. 47-P3h-VQTke-O8d-Bz-Oetab-beta-plus-deca.jpg Next would be the construction of separator to separate the Antimatter from the Sodium 22 which would be a set of magnets since the sodium 22 is heavier than the positrons the positrons would be more quickly attracted to the magnets which would be the entry way for a trap to hold the antimatter particles which could be made of Superconductors in a coiled donut shape to hold the Antimatter like which is used to hold superheated plasma in a fusion reactor. Antimatter trap Chamber pct-figure-03.gif anapole-field.jpg All of the parts dealing with Antimatter needing to be done in a vacuum chamber as otherwise the antimatter would annihilate with the electrons in the air. acrylic-chamber-500x500.jpg CERN is using this method of making positrons, Link = https://home.cern/news/news/physics/alpha-experiment-takes-antimatter-new-level Which the patent for making Na22 from Al27 is expired, link = (https://patents.google.com/patent/US5487880A/en) This is going to detail a device that can be made with modern technology with the proper rigging, The Antimatter Bomb. First off we must go into a little detail about the synthesis of Na22 from Al27 which is described in the (http://www.scienceforums.com/topic/35270-na22-synthesis-of-antimatter) thread but basically is requires the bombardment of Al27 targets with protons to nuclear transmute the Al27 into Na22. 201900-web.jpg Next the Na22 must be turned into a plasma with at least a temperature of 4560 kJ per mole, this is very important as this causes the second electron ionization of Na22 giving the Na22 atom a charge of +2, when it decays into Ne22 it will be on its second electron ionization too with a energy of at least 3952.32 kJ per mole for neon. This is very important that the temperature per mole stays above 4560 kJ per Mole or 306,832 K. download.png The positrons have a charge of +1 as the Na22 decays it will begin to generate positrons while this happens it needs to be contained with a magnetic confinement trap, the Sodium and Neon have a charge of +2 and the positrons having a charge of +1 within the confinement trap at 4560 kJ per Mole. pct-figure-03.gif The positrons and Sodium/Neon will repulse each other, the positrons have a lesser charge of only +1 will be closer together then the positrons and Sodium/Neon with a +2 charge within the trap, thus no electrons from the Sodium/Neon will annihilate with the positrons allowing for storage. The Na22 will give off positrons, if you had 907.185 kg or 1 ton of Na22 , it would give off 0.011 kg of antimatter positrons in 2.6 years which is the half life of Na22 having a yield of EAnnihilation = 2Manti-matterC^2 , where EAnnihilation= 2.007 PJ or 0.47968451 MT, The positrons will not annihilate with electrons until the temperature drops below 496 KJ per mol or 33,308 K, the energy of yield will gradually build as more positrons decay from the Na22 every 2.6 years the mass of positrons will increase by a rate of 1/2, then 1/4, then 1/8, then 1/16, then 1/32... of the original amount of mass of Positrons for half-life. So, it would gradually grow into a 0.95936902 MT device over a several decades as Na22 decays. 47-P3h-VQTke-O8d-Bz-Oetab-beta-plus-deca.jpg For a 5 Gigaton, which would gradually grow to 10 Gigaton, device it would require 10,423.517 tons of Na22 which is the antimatter device described in the thread, costing 400 Billion dollars.