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Re: D2 measurements
Dear Claude,
I hope now you are in good health. Without you we can not do anything ....
1. We do not need additional pressure sensors. We have all nesessary detectors.
2. For the calibration we can use standard empty hydrogen bottle 50 l. We can make adapters ourself in Gatchina. These are small things. Do not warry about new StSt volums. It will be necessary to order more or less clean natural hydrogen in 2 bottles (50l 200bar).
We will clean this hydrogen from deuterium and will use for the next callibrations.
With best regards Sasha.
On 11/29/06, Claude Petitjean
<claude.petitjean@psi.ch> wrote:
Dear Sasha,
unfortunately I was sick one week, that's why I answer only today to
your proposal of residual D2
concentration measurement. About additional equipment which you need, I
see no problem conc.
a precise pressure sensor and some additional valves. They can be
organized with moderate
money within a few weeks.
However, your inquiry to order 4 more 10 liter pressure bottles is
difficult because I hardly
can get them produced by our local people. This means huge time delays
and large costs.
Perhaps we can use the dummy TPC as additional 30 liter volume? What is
the maximum
pressure you need for the D2 measurements?
As you may have noticed in my last mail, the period from mid April to
mid June 2006 is most
suitable for me, since I could support your group 100%.
With best regards
Claude
Alexander Vasilyev wrote:
> Dear Colleagues,
>
> in the attachment You can find the "model" for the D2 concentration
> measurements in the "working" TPC hydrogen.
> There are error calculations (main aim) and manpower(time) planning.
>
> Humidity part coming soon.
>
> With best regards Sasha.
>
>
> --
> Vasilyev Alexander
>
> Petersburg Nuclear Physics Institute,
> Laboratory of Cryogenic and Superconductive Technique.
--
Vasilyev Alexander
Petersburg Nuclear Physics Institute,
Laboratory of Cryogenic and Superconductive Technique.