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Re: A few questions (fwd)
OK. Here is the revised document.
Regards,
-David
Elke-Caroline Aschenauer wrote:
> 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 -
> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>
--
------------------------------------------------------------------------
David Lawrence Ph.D.
Staff Scientist Office: (757)269-5567 [[[ [ [ [
Jefferson Lab Pager: (757)584-5567 [ [ [ [ [ [
http://www.jlab.org/~davidl davidl@jlab.org [[[ [[ [[ [[[
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DCReviewReply.pdf