USES

Scientists have researched antimatter and tried to make it usable in our lives. From medical uses to alternative energy uses. Right now antimatter is the most expensive substance on earth, costing 62.5 trillion dollars per gram and about 1.75 quadrillion an ounce.

Medical

A medical use for antimatter so far is Positron Emission Tomography (PET). PET scanners reveal the workings of the brain from low energy electron-positron annihilations. How the PET scanner work is that the patient is injected with radioactive nuclei, which emits positron as it decays. Then, when the positron comes in contact with an electron, it releases two high-gamma photons that are able to go through the brain tissue and the skull of the patient. Then doctors measure it by sensors and determine where the tumor or damage might be in that person's brain.

Energy

1kg of antimatter reacting with 1kg of matter releases equal amount of energy as 43 million tons of TNT detonating simultaneously. Problem with using antimatter as energy source is that, it takes more energy to produce antimatter than energy getting it back by annihilating with matter. So the idea for energy uses seems unlikely at this point.

Weapon

In theory, this can be a possible scenario, but the chances are that it will never happen. Producing antimatter in scale for warheads would take a lot of time and money, considering that it is the most expensive substance on earth.