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Re: Kuraray invoice for approval for Drop Shipment (fwd)




Thanks, Elton.

On Thu, 18 Jun 2009, George Lolos wrote:

> Hi Elton:
>
> Andrei can reply on the question of p.e.'s but since what we have seen
> so far points to Kuraray meeting the specs and the fact that the
> requirement for number of p.e.'s is much lower than what we observed
> with a PMT, I would say we can accept the shipment and pay.  Since we
> have the option of rejecting a lot that fails testing later on, if God
> forbid we see such a case, in all good faith we should proceed with
> payment.
>
> We can accept the next shipment on July 1 but please keep in mind that
> we are not able to test them and report in three weeks or so given the
> frequency of shipments and quantity of fibers in each.  Therefore, the
> acceptance for payment has to be based on fewer randomly selected
> fibers, while the more elaborate and statistically more reliable
> sampling testing will come later when batches of fibers are tested
> before used up in module construction.
>
> Cheers,
>
> George
>
> >>> Elton Smith <elton@jlab.org> 06/18/09 7:15 AM >>>
>
> HI George,
>
> Thanks for the update.
>
> 1) When do you think we will be able to approve the shipment?
> 2) Please confirm that you can receive the second shipment on Jul 1.
>
> Thanks, Elton.
>
> On Wed, 17 Jun 2009, George Lolos wrote:
>
> > Hi Elton:
> >
> > I had discussions with Andrei and the students on the fiber testing.
> > A number of randomly selected fibers from several different lot
> > numbers have been tested for attenuation length and Andrei has
> > compiled the results from the students.   The mean of the distribution
> > of the attenuation length is around 3.5 m with an RMS of ~ 0.2 m.  So,
> > the fibers tested meet specifications.   More fibers would have been
> > tested but a piece of the fiber polishing tool broke and shut down
> > operations.  Spares have been ordered and will arrive either tomorrow
> > or Friday.  Once the unit is repaired, measuring the attenuation
> > length will resume but so far so good.
> >
> > The number of photo-electrons has not been measured yet because the
> > only surviving SiPM board was burnt out.  Now that it's repaired,
> > Andrei will resume measurements this afternoon and will communicate
> > his results once he analyzes them.  If we find any problems in any lot
> > number, we'll communicate our results and the methodology according to
> > protocols.
> >
> > The number of fibers shipped is quite large and with operations being
> > still in the initial phases and with new students to train, some
> > patience will be required, initially.  We are also finding out what we
> > need in terms of spares to assure an uninterrupted operation for the
> > big QA to come.
> >
> > Cheers,
> >
> > George
> >
> > On 16-Jun-09, at 9:30 AM, Elton Smith wrote:
> >
> > >
> > > HI Zisis et al.,
> > >
> > > Kuraray has invoiced us for the first shipment of fibers. We would
> > > like to
> > > pay them as soon as we are confident that the fibers are ok. (Note
> > > that
> > > even after payment, Kuraray is responsible still responsible for
> > > fibers
> > > meeting specifications). From the data presented last week, the
> fibers
> > > meet our attenuation length specs. I also assume that visual
> > > inspection
> > > shows no obvious problems. Have you had a chance to take a look at
> the
> > > number of p.e.?
> > >
> > > Thanks, Elton.
> > >
> > >
> > > Elton Smith
> > > Jefferson Lab MS 12H5
> > > 12000 Jefferson Ave
> > > Suite # 16
> > > Newport News, VA 23606
> > > elton@jlab.org
> > > (757) 269-7625
> > > (757) 269-6331 fax
> > >
> > > ---------- Forwarded message ----------
> > > Date: Tue, 16 Jun 2009 09:24:01 -0400
> > > From: Chandra Gilchrist <chandrag@jlab.org>
> > > To: Elton Smith <elton@jlab.org>
> > > Subject: Kuraray invoice for approval for Drop Shipment
> > >
> > > Elton,
> > >
> > > Please approve (via e-mail) attached Kuraray invoice #90013815 -
> > > $140,580 for PO# 09-C0235 for payment.  If you have any questions or
> > > if
> > > there is a problem approving the invoice, please let me know.  (This
> > > is
> > > the only invoice copy you will receive.)
> > >
> > > Thanks.
> > >
> > > When responding to this e-mail, please Forward it instead of Reply
> so
> > > that the attachment stays intact.
> > >
> > >
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> >
> >
>
>
>