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Isoton

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An isoton was a measure of both mass and explosive yield used by at least Federation, Dominion, Borg and Malon science during the 24th century and Kyrian in the 31st century.

Comparative list of measure

Isogram = 1 one-millionth of an isoton

  • Approximately 10 isograms of antimatter eminating cellular matter could be extracted from the body of a nucleogenic lifeform. Captain Ransom had calculated that 63 lifeforms would have still been required to power his Template:ShipClass starship to cross the remaining distance of 35 thousand light years to Earth. The enhanced warp drive allowed a speed of 10 thousand light years per less than two weeks. (VOY: "Equinox")

Isoton

  • 200 isotons was the explosive yield of a photon torpedo with a class-6 warhead. (VOY: "Scorpion, Part II")
  • 6 billion isotons of antimatter waste was produced daily, in 2375, by the Malon civilization as an industrial byproduct. (VOY: "Night")

Appendices

Background

According to the Star Trek: Deep Space Nine Technical Manual, 25 isotons is the maximum theoretical yield of a matter-antimatter reaction in photon torpedoes and that quantum torpedoes have at least twice the yield at 50+ isotons. (pg. 85) These figures are not compatible with the canonical statement in "Scorpion, Part II" of 200 isotons as the yield of a class-6 photon torpedo warhead.

As with most other units of measure used in Star Trek: Voyager, isotons came to be used with unrealistic magnitudes such as four trillion isotons for the large Malon export vessel. As with most other measures used in Star Trek there are no direct conversions to real world measures given.

In Star Trek: The Next Generation Technical Manual a figure of 1,5kg of antimatter is given as the maximum warhead material of a photon torpedo. (pg. 129) Using standard physics calculations a direct 1:1 explosion would equal to about 64.4 megatons. Warhead materials are however premixed to achieves the level of destructive force of an antimatter pod rupture containing 100 cubic meters of antideuterium. (pg. 69) Antimatter is stored as liquid or slush on starships. (pg. 68) Density of mere liquid antideuterium is around 160 kg per cubic meter. According to this comparison the high annihilation rate energy release would be comparable to about 690 gigatons. Furthermore it is not clear if the 1,5 kg should be compared to the 200 isoton figure given in "Scorpion, Part II" on-screen, or the 25 isoton figure given in the Star Trek: Deep Space Nine Technical Manual.

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