With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Taylor Sheridan acted in a crime drama television series.
text_B: The hydrogen fluoride laser is an infrared chemical laser .. infrared. infrared. chemical laser. chemical laser. hydrogen. hydrogen. It is capable of delivering continuous output power in the megawatt range .. megawatt. megawatt. Hydrogen fluoride lasers operate at the wavelength of 2.7-2 .9 µm .. Hydrogen fluoride. Hydrogen fluoride. wavelength. wavelength. This wavelength is absorbed by the atmosphere , effectively attenuating the beam and reducing its reach , unless used in a vacuum environment .. wavelength. wavelength. However , when deuterium is used instead of hydrogen , the deuterium fluoride lases at the wavelength of about 3.8 µm .. wavelength. wavelength. deuterium. deuterium. hydrogen. hydrogen. This makes the deuterium fluoride laser usable for terrestrial operations .. deuterium. deuterium. The deuterium fluoride laser constructionally resembles a rocket engine .. deuterium. deuterium. In the combustion chamber , ethylene is burned in nitrogen trifluoride .. ethylene. ethylene. nitrogen trifluoride. nitrogen trifluoride. This reaction produces free excited fluorine radicals .. fluorine. fluorine. radicals. radical ( chemistry ). Just after the nozzle , the mixture of helium and hydrogen or deuterium gas is injected to the exhaust stream ; the hydrogen or deuterium reacts with the fluorine radicals , producing excited molecules of deuterium or hydrogen fluoride .. deuterium. deuterium. fluorine. fluorine. radicals. radical ( chemistry ). helium. helium. hydrogen. hydrogen. The excited molecules then undergo stimulated emission in the optical resonator region of the laser .. stimulated emission. stimulated emission. optical resonator. optical resonator. Deuterium fluoride lasers have found military applications  : the MIRACL laser , the Pulsed Energy Projectile and the Tactical High Energy Lasers are of the deuterium fluoride type .. deuterium. deuterium. MIRACL. MIRACL. Pulsed Energy Projectile. Pulsed Energy Projectile. An Argentine-American physicist and accused spy , Leonardo Mascheroni , has proposed the idea of using hydrogen fluoride lasers to produce nuclear fusion .. hydrogen. hydrogen. Leonardo Mascheroni. Leonardo Mascheroni. nuclear fusion. nuclear fusion. Category  : Chemical lasers
not_related.