I mean what was the concentration of He-4 in the vessel before the start of the experiment?
Harry On Fri, Jan 26, 2018 at 1:42 PM, H LV <[email protected]> wrote: > > > On Fri, Jan 26, 2018 at 9:58 AM, Jed Rothwell <[email protected]> > wrote: > >> Brian Ahern <[email protected]> wrote: >> >>> >> >>> >>> >> >> 3. The background He-4 was ~ 5pm >>> >> >> Yes. That is actually a strength. It is so low that anything like a leak >> would be far above the amounts Miles measured. >> >> > > What was the concentration of He-4 before the start of experiment? > > > >> >> >>> 4. The measured He-4 was only 5 ppB ! >>> >> >> As I said, a leak would be hundreds of times higher. >> >> >> 5. The diffusion rates of He-4 through the walls was simply dismissed. >>> >> >> No, it was measured repeatedly, over the course of a few years. >> >> >> > Harry >
