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Re: A few questions (fwd)
On Wed, 7 Mar 2007, David Lawrence wrote:
Dear David,
here the corrections from will looking to the document.
Document misspells bremsstrahlung in line 1.
Suggest replace "simulation current" with "simulated version of January
15" to avoid confusion with beam current.
Suggest you boldface or italicize "all processes turned on", which I
think is the main answer. A more complete answer will include a list of
the 'cuts' in GEANT3.
Page 2 replace "collimato" with "collimator"
Page 3 add period at end of sentence, separate unit from number, e.g.,
"20cm"-> "20 cm" in 2 places.
thanks for implementing them
cheers elke
> Date: Wed, 07 Mar 2007 13:50:24 -0500
> From: David Lawrence <davidl@jlab.org>
> To: Elton Smith <elton@jlab.org>
> Cc: Elke-Caroline Aschenauer <elke@jlab.org>, cmeyer@ernest.phys.cmu.edu,
> halld-tracking-hw@jlab.org, dzierba@indiana.edu
> Subject: Re: A few questions (fwd)
>
>
> Hi Elton,
>
> I have included this comment in the captions of the last two
> figures. Here is the latest version of the response to question 1.
>
> Regards,
> -David
>
> Elton Smith wrote:
> > HI Elke,
> >
> > One note on the rates which we should add, is that the 600 KHz in the FDC
> > downstream chambers corresponds to 0.6 deg (this assumes the same dead
> > region all through the drift chambers. The rate for 1 degree openning is
> > closer to 150 KHz maximum or a 5% aperture.
> >
> > This might be a number whis is useful to quote in answering the first
> > question.
> >
> > Cheers, Elton.
> >
> >
> >
> >
> > Elton Smith
> > Jefferson Lab MS 12H5
> > 12000 Jefferson Ave
> > Suite # 16
> > Newport News, VA 23606
> > elton@jlab.org
> > (757) 269-7625
> >
> > On Wed, 7 Mar 2007, Elke-Caroline Aschenauer wrote:
> >
> >
> >> Dear all,
> >>
> >> we have to find answers to this questions I suggest we discuss them in the
> >> coffee break.
> >> Dan I print you document on the costing of the fdc to give it to them,
> >> that should answer definetely all on it for the fdc, Curtis can we give
> >> them what you gave in former times and lately to elton to be included in
> >> the costbook.
> >>
> >> For the rest I guess it should be not very difficult to find answers.
> >>
> >> Regards
> >> 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 -
> >> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
> >>
> >> ---------- Forwarded message ----------
> >> Date: Wed, 07 Mar 2007 08:02:21 -0600
> >> From: David Christian <dcc@fnal.gov>
> >> To: elke@jlab.org
> >> Cc: David Christian <dcc@fnal.gov>, brooksw@jlab.org, whitlock@jlab.org
> >> Subject: A few questions
> >>
> >> Dear Elke,
> >>
> >> After yesterday's session, we have a few questions the answers to which
> >> would help us as we consider what to write in a report. I would
> >> appreciate it if you could respond today:
> >>
> >> 1) What calculation/simulation has been done of the background processes
> >> that will dominate the rate in the chambers?
> >>
> >> 2) It appears that the minimum allowable straw radius is set by a
> >> maximum allowable rate that is calculated assuming that a dE/dx
> >> measurement needs to be made in these straws. Is this correct? If not,
> >> how was the maximum allowable rate estimated?
> >>
> >> 3) Do you have supporting material available for the cost estimates?
> >>
> >> 4) Since the configuration of magnet steel is being changed, we are
> >> somewhat concerned with the fact that you do not plan to map the field.
> >> What drove this decision?
> >>
> >> Sincerely,
> >> David Christian
> >>
> >>
> >>
> >>
> >
> >
>
> --
>
> ------------------------------------------------------------------------
> David Lawrence Ph.D.
> Staff Scientist Office: (757)269-5567 [[[ [ [ [
> Jefferson Lab Pager: (757)584-5567 [ [ [ [ [ [
> http://www.jlab.org/~davidl davidl@jlab.org [[[ [[ [[ [[[
> ------------------------------------------------------------------------
>
>
>
( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
) `\ -
/ '. | +
| `, 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 -
+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+