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Re: Comments on slides
On Wed, 26 Mar 2008, Tim Whitlatch wrote:
Dear Tim,
just but the backup slides in the same file.
I always add one slide between the summary and the backup slides saying
BACKUP
cheers elke
> Date: Wed, 26 Mar 2008 09:57:24 -0400
> From: Tim Whitlatch <whitey@jlab.org>
> To: Elke-Caroline Aschenauer <elke@jlab.org>
> Cc: Daniel S. Carman <carman@jlab.org>, halld-pid@jlab.org,
> FDC email list <halld-tracking-hw@jlab.org>
> Subject: Re: Comments on slides
>
> Hi Elke,
>
> I have updated per comments and reposted my talk (doc996 v6).
>
> I also have some back up slides. Where should I put these?
>
> Thanks,
>
> Tim
>
> Elke-Caroline Aschenauer wrote:
> > On Tue, 25 Mar 2008, Tim Whitlatch wrote:
> >
> >
> > Dear Tim,
> >
> > I think a very nice talk.
> > I will not give comments on the spelling, they would never be as complete
> > as Dan's so here some small additional remarks.
> >
> > slide 8: the inner skin arrow points to a funny place
> >
> > slide 9: why do we need 50 micron precission on the holes
> >
> > slide 12: some infor on the gas tight connector is not readable
> >
> > slide 18: question to both cdc and fdc what is the tolerable leak rate
> > for
> > the chambers.
> >
> > slide 22: why are the field wires under more tension than the sense wires
> >
> > cheers elke
> >
> >
> >> Date: Tue, 25 Mar 2008 17:07:39 -0400
> >> From: Tim Whitlatch <whitey@jlab.org>
> >> To: Daniel S. Carman <carman@jlab.org>
> >> Cc: halld-pid@jlab.org, FDC email list <halld-tracking-hw@jlab.org>
> >> Subject: Re: Comments on slides
> >>
> >> Dear Dan,
> >>
> >> Thank you very much for taking a close look at all my slides. I have
> >> addressed many of your comments and have reposted.
> >>
> >> I do not intend to show any slides on the cable attach inside the BCAL.
> >> Chucks picture is a cartoon for now. I did plan on mentioning some sort
> >> of attachment on the maintenance slide.
> >>
> >> Also, I do not plan on getting into details on the magnetic field quench
> >> during the talk. I will mention we are looking into it and have some
> >> preliminary calculations.
> >>
> >> The lower figure on slide 24 is a section cut from the area circled.
> >>
> >> Thanks again.
> >>
> >> Tim
> >>
> >> Daniel S. Carman wrote:
> >> > Tim,
> >> >
> >> > Things are looking better and better in your talk. I have gone
> >> > over the slides and my comments are below. Let me know if you
> >> > have any questions.
> >> >
> >> >
> >> > Regards,
> >> >
> >> > Daniel
> >> >
> >> > **********************************************************************
> >> > pp.8 : Meaning of Phi=119.5cm in upper-left corner?
> >> >
> >> > pp.10 : Make figure slightly smaller to separate it from bullets.
> >> This
> >> > is a problem on several slides in your talk. Note that 20
> >> micron
> >> > is wire diameter.
> >> >
> >> > pp.12 : Labels overlap figure. Make it slightly smaller to separate
> >> > from bullets.
> >> >
> >> > pp.14 : For the text in the lower right, make it span 2 lines to avoid
> >> > overlap with the slide number.
> >> >
> >> > pp.16 : eliminate punctuation on 4th bullet for consistency.
> >> >
> >> > Note: leaks are not the real problem (for a non-flammable gas
> >> mixture).
> >> > The issue is contamination of the gas from water and oxygen. In
> >> > general, if things can get from the inside to the outside, they
> >> > can surely get from the outside to the inside!
> >> >
> >> > pp.19 : Missing ")" on 2nd bullet. Note that FDC assembled as single
> >> > structure for installation. Note that 118 cm diameter is too
> >> > small. This is the O.D. of the frame and does not account for
> >> > the cabling.
> >> >
> >> > Note: You have not mentioned anything about the FDC cable support
> >> > inside the solenoid (outside the BCAL). Is the current plan
> >> > too premature/underdeveloped for at least a mention? Chuck
> >> > has a picture that I included in the FDC TDR.
> >> >
> >> > pp.20 : On 3rd bullet, use "o-ring grooves".
> >> >
> >> > pp.21 : The wording "structural skin" is unneccesarily repeated
> >> repeated.
> >> >
> >> > pp.22 : Again, 20 microns and 80 microns are wire diameters. Use the
> >> > term "sense wire" and not "signal wire". Also note that the
> >> > tension choices for the W and CuBe wire are chosen to match
> >> the
> >> > gravitational sag.
> >> >
> >> > pp.24 : Fig. labels overlap bullets. Also the lower figure does not
> >> > make sense to me. It looks like we have square frames. It
> >> > might be worth mentioning that tubes/skins will be
> >> light-weight.
> >> > Skins will not allow for current path in case of a magnet
> >> > quench.
> >> >
> >> > pp.26 : The point of this slide is not clear. This model is being
> >> made
> >> > and calculations carried out to determine the hole
> >> locations and
> >> > sizes to ensure a uniform gas mixture and (semi-) rapid gas
> >> > volume exchange. It is crucial to have no pockets of stagnant
> >> > gas. Also note that the holes in the cathodes rotate from
> >> > cathode layer to cathode layer.
> >> >
> >> > pp.27 : Labels overlap bullets.
> >> >
> >> > pp.28 : Move slide contents further below the title.
> >> >
> >> > pp.29 : Note that wire frame boards are only partially stuffed
> >> prior to
> >> > wire stringing. Additional components (including the
> >> connectors)
> >> > are added after stringing.
> >> >
> >> > pp.32 : FDC installed from the upstream end should be stated
> >> explicitly.
> >> >
> >> > pp.33 : All bullet for why we extract from downstream end for
> >> servicing.
> >> > The point is not to disturb the CDC, target, start counter,
> >> > beamline, etc. (or their alignment). Also note that the first
> >> > step in downstream extraction is to move the downstream
> >> carriage
> >> > downstream and then to install the service platform.
> >> >
> >> > pp.34 : Spurious "[" on first bullet. Also I do not know what you are
> >> > saying in the 2nd bullet.
> >> >
> >> > pp.36 : Meaning of 2nd bullet unclear. Also statement on minimizing
> >> > material in the active area is unclear. The bars themselves
> >> > are in the active area.
> >> >
> >> > pp.37 : On 3rd bullet, use 252 cm**2 (i.e. superscript) active area.
> >> > On 4th bullet, use "6 cm" not "6cm".
> >> > On 5th bullet, use "readout" not "read".
> >> > On 6th bullet, is hole 12 cm**2?
> >> >
> >> > pp.38 : Fig. labels overlap words.
> >> >
> >> > pp.40 : Missing your footer here. Also you have not mentioned the
> >> > movement of the downstream carriage.
> >> >
> >> > pp.41 : Slide is incomplete. State what has been done to address this
> >> > issue in the FDC, CDC, and TOF. Mention Al endplate for CDC.
> >> > Ref. Elton's GlueX note and give some relevant scale for the
> >> > forces involved. In other words, beef this slide up a bit.
> >> >
> >> > pp.43 : Note that this is an example for one subsystem (the FDC) and
> >> > that this hazard analysis has been done for all Hall D/GlueX
> >> > subsystems and the Hall itself.
> >> >
> >> > pp.44 : On 3rd bullet, I would say "Some details still need to be
> >> ironed
> >> > out".
> >> > On 5th bullet, why not say "personnel and equipment safety".
> >> > We are designed the detector and all construction/installation
> >> > procedures certainly to protect the workers, but a big part of
> >> > the design is also to protect the system (our investment) in
> >> > case of failures or problems.
> >> > **********************************************************************
> >> > **********************************************************************
> >> > * *
> >> > * Dr. Daniel S. Carman e-mail : carman@jlab.org *
> >> > * Staff Scientist office : (757)-269-5586 *
> >> > * Jefferson Laboratory web: www.jlab.org/~carman *
> >> > * *
> >> > **********************************************************************
> >> >
> >> >
> >> >
> >> >
> >>
> >
> > ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> > ) `\ -
> > / '. | +
> > | `, Elke-Caroline Aschenauer =
> > \,_ `-/ -
> > ,&&&&&V Jefferson Lab +
> > ,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
> > ,&&&&&&&&&&; Suite 8 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.: 001-757-269-6331 -
> > +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
> > ------------------------------------------------------------------------
> >
> > begin:vcard
> > fn:Timothy Whitlatch, PE
> > n:Whitlatch;Timothy
> > tel;work:757-269-5087
> > tel;fax:757-269-5279
> > version:2.1
> > end:vcard
> >
> >
>
( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
) `\ -
/ '. | +
| `, Elke-Caroline Aschenauer =
\,_ `-/ -
,&&&&&V Jefferson Lab +
,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
,&&&&&&&&&&; Suite 8 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.: 001-757-269-6331 -
+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
begin:vcard
fn:Timothy Whitlatch, PE
n:Whitlatch;Timothy
tel;work:757-269-5087
tel;fax:757-269-5279
version:2.1
end:vcard