The cold helium gas also helps take thermal stealth to a whole new level. Exhaust plumes cooled by 1,327 degrees Celsius (2,420 Fahrenheit) can technically evade detection by almost any infrared ...
ALTHOUGH the most common high-sensitivity detectors now in use for gas ... This was done by substituting ordinary commercial helium for argon as the carrier gas. The ionization chamber was a ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback