Steven Krivit wrote:
http://newenergytimes.com/v2/news/2010/SRI-Case-Repl/SRI-Case.shtml
Has anybody ever noticed that 2 out of 3 runs that show 4He growth
in the SRI Case replication show a peak and then a decrease in 4He?
Yes. Many people have noted this. At ICCF-15 Tom Passell distributed
a paper about this, which McKubre and Storms disagreed with. As I
recall he said the helium was there all along and it was freed up and
then sequestered again.
This is a helium leak-tight chamber.
Nothing is perfectly leak-tight, and helium is the most difficult
element to contain, according to Morrison. The steel cylinders used
by Miles contained the stuff for months with remarkably little
leaking, but they were less complicated than a working cell. For Run
SC4.2, they drew 9 samples. Anything you can draw a sample out of 9
times is bound to leak.
Where does the 4He go?
I do not know. I think that is unclear to the researchers. I think it
is either sequestered or leaked. I do not think it is lost to the
sampling technique, per Jones Beene, but I could be wrong about that.
Since the concentration is above atmosphere (5 ppm), any leaks would
be out, not in.
No doubt there is some freeing up followed by sequestering going on
here, as you see from SC1, in which the helium level fluctuates
slightly below 1 ppm. It can't be leaking out, since this is so far
below atmospheric concentration. It can only leak in.
This is the first question regarding helium that you have raised that
is not answered, or at least addressed to my satisfaction, in the literature.
- Jed
