Re: exhalo drawings

[Claude Petitjean <claude.petitjean@psi.ch>]

Dear Peter,

I called this morning Mr. Bugmann. The Problem is, that Mr. Bacher
(who is assigned to mashine scintillators) is in vacation until
Wednesday next week. But Mr. Bugmann promised me to find another
more quick solution and to deliver the 2 scintillators by next
Monday at the latest.

Conc. the "West" job (vacuum through-puts), I will contact Mr.
Ruettimann tomorrow to get these sealing rings and bring it
to Mr. Max Mueller (West-workshop) who is basically waiting to do
then the metal parts.

Regards, Claude

Peter Kammel wrote:

> Dear Claude,
> 
> Many thanks for getting involved in this project while Peter is gone.
> I have documented it on
> http://twiki.npl.uiuc.edu/twiki/bin/view/Main/SystematicIssues
> 
> Based on Peter's info about the PSI workshop schedule we suggest the
> following:
> 
> i) The whole light pipe (with Alu pipes), light guide and assembly of the
>    pieces will be done at UIUC. The 2 weeks estimated by Mr Bugmann,
>    unfortunately, are not compatible with the required schedule.
> 
> ii) But we would still ask Mr Bugmann (Mr Pracher) for the two
>     scintillator pieces. As this is a much smaller job, we hope
>     they could be ready early next week, when the other pieces
>     arrive.
> 
> iii) For the new feedthrough design and sealing rings we rely on
>      Mr Ruettimann and the PSI workshop. If that can be constructed
>      within a week, we could have put everything together end
>      of next week.
> 
> Please discuss the changed plans with Mr Bugmann.
> 
> With best regards
> 
> Peter
> 
> 
> On Mon, 11 Sep 2006, Winter Peter wrote:
> 
>> Hi,
>>
>> I'm adding Claude and Volodya to this email since they are now 
>> informed and involved to this design.
>> Unfortunately, I was informed this morning by Urs Heidelberger from 
>> the vacuum group that Mr Ruettimann
> 
> is ill today and tomorrow. He had promised to finish the drawings by 
> today but that won't happen. Now, we
> hope that he's going to return on Wednesday and then Claude receives the 
> drawings for the feedthrough.
> He then will bring that to the workshop west since I already 
> investigated that they should have the
> capacity to finish the two feedthroughs within ~1 week.
> 
>> Then, together with Volodya I went to talk to Mr Bugmann. I gave him 
>> the order for the 1mm scintillators
> 
> plus the ligh guides and aluminium tubes. For technical reasons they 
> will probably mill the light guide.
> Now he also asked if we want to wrap the light guide with aluminium 
> foil. If so, the .2mm gap isn't sufficient.
> He said that there might be a standard pipe with OD=25mm and ID=21mm. If 
> we take that and the 200mm light guid,
> we'd have some more space for the wrapping. He did not have a better 
> solution other than glueing things together.
> Should I instruct him to go for this solution with the wrapping?
> 
>> Last but not least, we were talking about the time for production. For 
>> the scintillators and the
> 
> final polishing of the light guide, Mr Bugmann need Mr Bracher (the 
> expert for that). Unluckily, Mr
> Bracher is in holidays now until middle of next week. Therefore, we 
> cannot expect these parts to
> be ready before end of next week!!! And even that is not sure. Claude 
> will call Mr Bugmann on
> Thursday, 21 or Friday, 22. to check the status. However, I expect that 
> we'll have these parts only in the week when I'm back.
> 
>> That's the latest news.
>> Peter
>>
>