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Lightnin
4
Aug 26, 2016
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New Isobrite watch advertised as illuminated with "T100 tritium illumination, which is four times brighter than the T25 variety used in most standard tritium watches." Does anyone know a source for 23mm T100 vials for this fob?
Desastor
336
Aug 27, 2016
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LightninI don't think T100 refers to greater light; I think it refers to the amount of radiation of the watch (the more Tritium, the more light, hence more radiation). If you look at T100 watches, they have longer tubes or just more tubes as compared to the T25. Since we are dealing w/radioactivity here, more may not be the merrier. All of the Tritium, as far as I know, comes out of one factory in Switzerland and manufacturing is highly regulated. I am fairly certain that a small amount of Tritium is not hazardous to your health, although I would not want to lay in a swimming full of the tubes.
Addendum: Just learned that I am not completely right. There is T100 although it does refer to the amount of radioactivity released, although T100 is more potent compared to T25 in terms of light intensity. T100 is apparently the highest intensity allowed for a watch and I am totally clueless if T100 vials are actually available for other uses. The rest is just beyond what I am willing to absorb right now. ...
Addendum: Just learned that I am not completely right. There is T100 although it does refer to the amount of radioactivity released, although T100 is more potent compared to T25 in terms of light intensity. T100 is apparently the highest intensity allowed for a watch and I am totally clueless if T100 vials are actually available for other uses. The rest is just beyond what I am willing to absorb right now. ...
Lightnin
4
Aug 27, 2016
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DesastorIt was my understanding that the tubes are lined with a phosphorescent substance that gives off the actual light in response to the radiation. If T100s are brighter, then my guess is that it's a more efficient phosphorescent substance. Perhaps there's a physical chemist in the group who might be able to give us the real skinny. Every country that manufactures thermonuclear weapons must have its own tritium refinery. They can't all be buying it from the Swiss.
expontherise
161
Aug 29, 2016
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LightninThough Switzerland being the longest standing neutral country on international conflict, would be a good country to be the only one to offer goods of radioactive nature.
Mocifer
4
Aug 30, 2016
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LightninThe T25 or T100 stands for the millicurie amount of H3 gas within the tube. Yes, the H3 isotope reacts with a phosphorus coating which differs in thickness and which isotope of phosphorus needed to produce the desired photon given off through beta decay. Swiss makes the best quality T100 vials for their watches. 99% of tritium vials bought online come from the Far East and are personal "made to order" batches. That said they are coming out with T100 green and deep blue but the process is amazing difficult. I have some T100 vials in a couple fobs but unless I'm paying several grand for a watch, T25 serves its purpose finding my keys. deebluewatches.com
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