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Re: Tagger Spec




Elke,
you are right: let's get the PO out! Details can be provided later!

Franz

On Fri, 30 Nov 2007, Elke-Caroline Aschenauer wrote:

> On Fri, 30 Nov 2007, Tim Whitlatch wrote:
>
> Dear Tim and Franz,
>
> okay, I think we should leave things as they are now and try to really get
> the contract bid. I can create final versions with the latest remarks
> included and submit the PO so the process can start.
>
> I think we should not put the 31st of may in but leave things as Tim
> suggest and we discussed on one of the meetings. As the Tagger final
> procurement is relatively late we are good with a 80% design foloowing the
> PED guidance we got at the Lehmann review. I think we want high quality,
> so better don't rush it to much.
>
> Cheers elke
>
>
>
> > Date: Fri, 30 Nov 2007 07:21:27 -0500
> > From: Tim Whitlatch <whitey@jlab.org>
> > To: Franz Klein <fklein@jlab.org>
> > Cc: Elke-Caroline Aschenauer <elke@jlab.org>,
> >      Richard Jones <richard.t.jones@uconn.edu>,
> >      Guangliang Yang <y.guangliang@physics.gla.ac.uk>,
> >      Ken Livingston <k.livingston@physics.gla.ac.uk>,
> >      Elton Smith <elton@jlab.org>, Chuck Hutton <huttonc@jlab.org>,
> >      halld-tagger@jlab.org
> > Subject: Re: Tagger Spec
> >
> > Thanks Franz. These are very good comments. I will interject my replies
> > after each below in /italics/.
> > Jay had some good comments also. Parker recommends 22-28% for larger
> > orings in a vacuum configuration. Also, I believe he is correct in
> > specifying the inlet temperature of the LCW.
> >
> > Thanks
> >
> >        Tim
> >
> > Franz Klein wrote:
> > > Tim,
> > >
> > > thanks for looking very closely into the documents.
> > > They are getting to look very official!
> > >
> > > I have a few comments to your changes:
> > >
> > > 1) SoW
> > > a) Do we include the design of the focal plane window?
> > > After the last discussion I would say: yes (though we don't have any newer
> > > detailed drawing from vacuum chamber and window flange: do we have to
> > > provide something? If so, we can make a layout drawing from these 2
> > > layers in Yang's ACAD model).
> > >
> > /We can make a drawing showing the window size, material and thickness
> > or we can specify this and have the bidder add the window to the design
> > they provide. That may be better./
> > > b) I agree with providing deadlines relative to the approval of previous
> > > stages, however I'd like to keep the completion for stage 2 fixed: May 31,
> > > 2008, is really a deadline - due to the Lehmann review.
> > >
> > /I agree that the May 31 is very important. If we are to specify May 31,
> > there may need to be some corollary that it can slip if the contract is
> > late being signed, we are late reviewing the initial phase etc. /
> > > c) Stage 1: good to specify: updates of these drawings or new drawings
> > > are acceptable!
> > > We should add (after 6.): Individual drawings of the focal plane face and
> > > down stream face of the vacuum chamber showing the flanges for the thin
> > > windows.
> > >
> > /OK/
> > > d) to "Jefferson Lab will provide the following information":
> > >  item 2 was a poor formulation for the items you added (8+9)
> > >  (item 2 should be removed)
> > >
> > /OK/
> > > e) Stage 2:
> > > I had in mind that the contractor provides a structural FEA (see last 2
> > > paragraphs on page 1: Structural FEA by contractor, but the contractor can
> > > decide whether he wants to do the opera calculations or leaves this to us
> > > (actually: Yang).
> > >
> > /OK, we should just add the word structural/
> > > f) Stage 3:
> > > Your additional sentences repeat what was said already on page 1 (but if
> > > you like we can keep it).
> > > The conversion to ideas format (.iges) is useful for us but I don't
> > > understand why a good 3-D autoCAD model shouldn't be enough (or do you
> > > want the contractor to purchase a conversion program ~ $1000).
> > >
> > /I just wanted to specify so there are no misunderstandings. My thoughts
> > are that if someone does not use autocad or ideas, we will need a
> > translation. We can specify that a 3D autocad or ideas model is acceptable/
> > > ---------------------
> > > 2) Specs.
> > >
> > > a) I updated the tagger specs in May after the meeting with Sergei (and
> > > added a few things I was asked for over the last weeks). There are a few
> > > items that are already part of the SoW and shouldn't be named specifically
> > > in the specs (last sentences under sections 5+6).
> > >
> > > b) The specs document still refers to Yang's preliminary drawings, not
> > > mentioning the IHEP work.
> > >
> > > c) Several specifications and options are left as they were before (e.g.
> > > the SS vs. Al option for the vacuum chamber seems superfluous to me).
> > > There are specifications for the coils which were not followed up by IHEP
> > > (but these details can be considered later, eg. square section of
> > > conductor, cooling circuits ...).
> > >
> > > d) The focal-plane vacuum window was not included since the windows were
> > > seen as independent objects flanged to the vacuum chamber. If we ask for
> > > welding the long window to the chamber, it has to be part of the specs!
> > > Dan and I looked through several options and found 5 mil Al the best
> > > (resolution error in microscope would be < 0.0002 (of E0) for electron
> > > energies below 5 GeV (the resolution error increases to < 0.0003 of E0 for
> > > 10.0 mil Al = 1.98 mil Fe).
> > >
> > > Please advise whether I should add these specifications (more important
> > > though is the shape and material of the flange).
> > >
> > /I believe we should add the window and have the bidder do the complete
> > pach=kage./
> > > Thanks again, Tim, and have a nice evening
> > >
> > > Franz
> > >
> > > ps. Also thanks to Jay for his comments (and to Elke to forward it to
> > > him!)
> > >
> > > ===============================================================
> > >                   Franz J. Klein, Associate Professor
> > >                   CUA, Department of Physics
> > >                   Washington, DC 20064
> > >   office: Hannan Hall 210          phone: 202-319-6190
> > >   or: Jefferson Lab,CC F-243       phone: 757-269-6671
> > > ---------------------------------------------------------------
> > >
> > >
> > > ------------------------------------------------------------------------
> > >
> > > Now I attached the file. Sorry
> > >
> > > Tim
> > >
> > > Tim Whitlatch wrote:
> > >> Hi Elke et al
> > >>
> > >> I have finally gotten around to reviewing the spec. Again, should we
> > >> put this in a formal format? Also please read my comments.
> > >>
> > >> Cheers,
> > >>
> > >>        Tim
> > >>
> > >> Elke-Caroline Aschenauer wrote:
> > >>> On Mon, 26 Nov 2007, Franz Klein wrote:
> > >>>
> > >>> Dear Franz,
> > >>>
> > >>> yes, I remember our discussion during the last phone meeting. I thought
> > >>> that the agreement was to make the window of a size that the material is
> > >>> really out of the way and that we ask the company to make an analysis for
> > >>> the strength of the window. Did we not also decide to add the drawing you
> > >>> made changing Guangliang's one to the package.
> > >>>
> > >>> If I have missed something please add a sentence or 2 to the SOW and / or
> > >>> the requirements to address the concerns.
> > >>>
> > >>> Cheers elke
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>> Date: Mon, 26 Nov 2007 18:02:52 -0500 (EST)
> > >>>> From: Franz Klein <fklein@jlab.org>
> > >>>> To: Elke-Caroline Aschenauer <elke@jlab.org>
> > >>>> Cc: Richard Jones <richard.t.jones@uconn.edu>,
> > >>>>      Tim Whitlatch <whitey@jlab.org>,
> > >>>>      Guangliang Yang <y.guangliang@physics.gla.ac.uk>,
> > >>>>      Ken Livingston <k.livingston@physics.gla.ac.uk>,
> > >>>>      Elton Smith <elton@jlab.org>
> > >>>> Subject: Re: word documents
> > >>>>
> > >>>>
> > >>>> Thanks, Elke!
> > >>>> One last question: should we get more specific about vacuum window, beam
> > >>>> exit flange, etc?
> > >>>> (please see "GlueX tagger specs - 3. Vacuum box" and SoW addendum)
> > >>>>
> > >>>> Greetings
> > >>>>
> > >>>> Franz
> > >>>>
> > >>>> On Mon, 26 Nov 2007, Elke-Caroline Aschenauer wrote:
> > >>>>
> > >>>>
> > >>>>> Dear all,
> > >>>>>
> > >>>>> please find attached the wiki pages moved into doc-files. It would be nice
> > >>>>> people could check for the last time there are no problems in the files.
> > >>>>>
> > >>>>> During a meeting w had today with the procurement guys, one nice point
> > >>>>> came up, they suggested that one requirement we want to place to the
> > >>>>> different companies bidding is that they give us the resumes of people who
> > >>>>> will work on the project together with a small summary on what the firm has
> > >>>>> done already.
> > >>>>> It will help us to avoid to go for a low price bid and than run into the
> > >>>>> problem the guys cannot make it for the price, because it is a small firm
> > >>>>> and they want the contract, but are not yet experience in estimating the
> > >>>>> costs. I think that is an excellent suggestion.
> > >>>>>
> > >>>>> The next plan from my side would be to send the 2 files to sergey so he
> > >>>>> has a heads up on our actions. Anything else?
> > >>>>> If you don't complain till tomorrow I will send it to procurement for more
> > >>>>> suggestions and than we can hopefully hit the street with it. Tim how are
> > >>>>> we doing on the action items from the last phone call drawings and so.
> > >>>>>
> > >>>>> cheers and thanks elke
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>  ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> > >>>>>   )    `\                                                  -
> > >>>>>  /    '. |                                                  +
> > >>>>>  |       `,              Elke-Caroline Aschenauer            =
> > >>>>>   \,_  `-/                                                    -
> > >>>>>   ,&&&&&V         Jefferson Lab                                +
> > >>>>>  ,&&&&&&&&:       HALL-D 12C / F381       121-A Atlantic Avenue =
> > >>>>> ,&&&&&&&&&&;      Mailstop: 12H5          Hampton, VA 23664      -
> > >>>>> |  |&&&&&&&;\     12000 Jefferson Ave                             +
> > >>>>> |  |       :_) _  Newport News, VA 23606  Tel.:  001-757-224-1216  =
> > >>>>> |  |       ;--' | Mail:  elke@jlab.org    Mobil: 001-757-256-5224   -
> > >>>>> '--'   `-.--.   |                                                    +
> > >>>>>    \_    |  |---' Tel.:  001-757-269-5352                             =
> > >>>>>      `-._\__/     Fax.:  001-757-269-6248                              -
> > >>>>>             +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
> > >>>>>
> > >>>> ===============================================================
> > >>>>                   Franz J. Klein, Associate Professor
> > >>>>                   CUA, Department of Physics
> > >>>>                   Washington, DC 20064
> > >>>>   office: Hannan Hall 210          phone: 202-319-6190
> > >>>>   or: Jefferson Lab,CC F-243       phone: 757-269-6671
> > >>>> ---------------------------------------------------------------
> > >>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>
> > >>>  ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> > >>>   )    `\                                                  -
> > >>>  /    '. |                                                  +
> > >>>  |       `,              Elke-Caroline Aschenauer            =
> > >>>   \,_  `-/                                                    -
> > >>>   ,&&&&&V         Jefferson Lab                                +
> > >>>  ,&&&&&&&&:       HALL-D 12C / F381       121-A Atlantic Avenue =
> > >>> ,&&&&&&&&&&;      Mailstop: 12H5          Hampton, VA 23664      -
> > >>> |  |&&&&&&&;\     12000 Jefferson Ave                             +
> > >>> |  |       :_) _  Newport News, VA 23606  Tel.:  001-757-224-1216  =
> > >>> |  |       ;--' | Mail:  elke@jlab.org    Mobil: 001-757-256-5224   -
> > >>> '--'   `-.--.   |                                                    +
> > >>>    \_    |  |---' Tel.:  001-757-269-5352                             =
> > >>>      `-._\__/     Fax.:  001-757-269-6248                              -
> > >>>             +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
> > >>>
> > >>>
> >
>
>  ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
>   )    `\                                                  -
>  /    '. |                                                  +
>  |       `,              Elke-Caroline Aschenauer            =
>   \,_  `-/                                                    -
>   ,&&&&&V         Jefferson Lab                                +
>  ,&&&&&&&&:       HALL-D 12C / F381       121-A Atlantic Avenue =
> ,&&&&&&&&&&;      Mailstop: 12H5          Hampton, VA 23664      -
> |  |&&&&&&&;\     12000 Jefferson Ave                             +
> |  |       :_) _  Newport News, VA 23606  Tel.:  001-757-224-1216  =
> |  |       ;--' | Mail:  elke@jlab.org    Mobil: 001-757-256-5224   -
> '--'   `-.--.   |                                                    +
>    \_    |  |---' Tel.:  001-757-269-5352                             =
>      `-._\__/     Fax.:  001-757-269-6248                              -
>             +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>
>

===============================================================
                  Franz J. Klein, Associate Professor
                  CUA, Department of Physics
                  Washington, DC 20064
  office: Hannan Hall 210          phone: 202-319-6190
  or: Jefferson Lab,CC F-243       phone: 757-269-6671
---------------------------------------------------------------