Tritium cylindrical vials at maximum pressure.
Tritium is a radioactive isotope of Hydrogen. Tritium light sources are radioluminescent and can be best described as a strong glow. They are self-powered and do not need to be charged via exposure to light, suchas standard glow pellet. Tritium does not in itself emit light but excites phosphors, thereby generating light. It is therefore most often encountered in glass capsules with an internal phosphor coating of various colors. Green is usually the brightest based on the phosphors and the sensitivity of the human eye. The half life of tritium is 12.32 years which means that a tritium based light source will be half as bright after 12.32years.
Tritium light sources are illuminated by means of borosylicate glass tubes covered on the inside with phosphor powder and filled with gaseous tritium. The gaseous tritium emits electrons, which activate the phosphor powder producing light for 15 years (131000 hours).
Size: 11mm x 3mm
Ideal for Tec Accessories Isotope Mini and Isotope Tandem
Quest over - John - 19/05/2015
I had heard about these back in 1988. I always wanted one for my survival kit. I never could find one even when I was in Germany. Now here we are in 2015 and I find a place that sells these things. So now I have the equivalent of a chemlight that operated for at least 15 years in my kit. My quest for the beta light is over. I'm going camping soon. I plan to use it to mark the entrance of my tent. Then if I need to find it in the dark I can do it with little problem. Just walk towards the light. It don't matter if it is cold or hot, raining or clear moonless night. And I'll always know for at least the next 15 years I have a light when I need one.