leakage from sealed tritium: how much?

[Mauro Campoleoni <trentino@iol.it>]

Hi friends,

I'm performing some leak tests on sealed sources, and I have a few doubts

about a couple of tritium sealed sources, (where 3H is incorporated

into a titanium layer on the surface of a molybdenum plate of

0,1 mm thickness and sealed with silicon dioxide)



How much is it allowed to leak? which suitable test?



I suppose the right info is in ISO 9978, which I don't have at hand.



I'm looking for info/suggestions fron you.



Best regards.



Mauro Campoleoni



Fisica Sanitaria

Istituti Clinici di Perfezionamento

Via della Commenda, 12 20122 - Milano

tel.: 02-57992166   fax: 02-57992168

trentino@iol.it