How much matter and antimatter must be annihilated to fuel the superlaser pulse?

Approximately 2,500,000 metric tons

The energy required to destroy a planet, calculated as its gravitational binding energy, demands an immense power source. In theoretical terms, matter-antimatter annihilation is the only known process capable of yielding the necessary energy density because it converts nearly 100% of the mass into energy. To achieve the required energy release of $2.24 \times 10^{32}$ Joules, the calculation shows that the total mass of matter and antimatter that must be annihilated is approximately 2,500,000 metric tons. This highlights the extreme difficulty not just in creating this energy, but in safely containing and delivering that mass within the structure of the weapon platform itself.