[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: question about background rates in BCAL
Hi Alex,
I plan to show the dose and rate plot in the fcal talk. These plots can
be found at
http://www.jlab.org/Hall-D/software/wiki/index.php/FCAL_Backgrounds
they were made by Matt using the monte carlo using the "beam-background"
generator
from Richard. I believe David might have been working on a new version
using the
new geometry file or was planing to do so.
cheers,
Beni
Alex Dzierba wrote:
> 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 -
>>
>> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>
>