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Re: question about background rates in BCAL
Great - thanks for pointing this out. I feel like a juggler - every
so often (or maybe always) I'm dropping balls.
I'm still working on Npe and dark rates
Alex
At 10:24 AM -0500 2/10/08, Elke-Caroline Aschenauer wrote:
>On Sun, 10 Feb 2008, Alex Dzierba wrote:
>
>Dear Alex,
>
>I just looked and there are no rate plots in the FCal section either, you
>of course discuss there the radiation damage, but this is slightly
>different as it is real measurements.
>
>This EM background rates come form the MC, so I would think they should
>more go into the simulation section, but of course the individual calo
>sections are also fine.
>
>cheers elke
>
>
>
>> Date: Sun, 10 Feb 2008 10:06:54 -0500
>> From: Alex Dzierba <dzierba@indiana.edu>
>> To: Elke-Caroline Aschenauer <elke@jlab.org>
>> Cc: halld-cal@jlab.org
>> Subject: Re: question about background rates in BCAL
>>
>> Thanks Elke -
>> The rates are small but for consistency we want to at least
>> address is in the document
>>
>> Cheers
>> Alex
>>
>> At 9:58 AM -0500 2/10/08, Elke-Caroline Aschenauer wrote:
>> >On Sun, 10 Feb 2008, Alex Dzierba wrote:
>> >
>> >Dear Alex,
>> >
>> >
>> >> Dear All
>> >>
>> >> I want to include some discussion of e.m. background rates for BCAL.
>> >> Can someone point me to where I can find the most current
>> >> calculations? I need figure(s).
>> >
>> >just a small remarks as the BCal sits radially so far outside, the rates
>> >from EM must be very low. The rates in all the detectors have dropped
>> >really a lot after the material in the FDC has been so reduced.
>> >So I'm not sure this is really very important.
>> >Examples of the rates befor and after is in
>> >http://www.jlab.org/Hall-D/reviews/FDC_Mini_Review_Feb08/Final%20Talks/DCReview_Simulation.pdf
>> >
>> >cheers elke
>> >
>> >
>> >
>> >>
>> >> I decided to include the discussion of the SiPM dark rate affect
>> >> on threshold energy in the BCAL section. I am working on that now
>> >> along with going over the discussion of the photoelectron yield.
>> >>
>> >> Alex
>> >> --
>> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> >> Alex R. Dzierba
>> >> Chancellor's Professor of Physics (Emeritus)
>> >> Department of Physics / Indiana U / Bloomington IN 47405 / 812-855-9421
>> >> JLab Visiting Fellow
>> >> Jefferson Lab / 12000 Jefferson Ave / Newport News, VA 23606 /
>>757-269-7577
>> >> Home Phone: 812-825-4063 Cell: 812-327-1881 Fax: 866-541-1263
>> >> http://www.dzre.com/alex
>> >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> >>
>> >
>> > ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
>> > ) `\ -
>> > / '. | +
>> > | `, 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 -
>> > +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>>
>>
>> --
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Alex R. Dzierba
>> Chancellor's Professor of Physics (Emeritus)
>> Department of Physics / Indiana U / Bloomington IN 47405 / 812-855-9421
>> JLab Visiting Fellow
>> Jefferson Lab / 12000 Jefferson Ave / Newport News, VA 23606 / 757-269-7577
>> Home Phone: 812-825-4063 Cell: 812-327-1881 Fax: 866-541-1263
>> http://www.dzre.com/alex
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>
> ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> ) `\ -
> / '. | +
> | `, 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 -
> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Alex R. Dzierba
Chancellor's Professor of Physics (Emeritus)
Department of Physics / Indiana U / Bloomington IN 47405 / 812-855-9421
JLab Visiting Fellow
Jefferson Lab / 12000 Jefferson Ave / Newport News, VA 23606 / 757-269-7577
Home Phone: 812-825-4063 Cell: 812-327-1881 Fax: 866-541-1263
http://www.dzre.com/alex
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~