ePIC pfRICH mailing list

[Chandradoy Chatterjee <Chandradoy.Chatterjee AT ts.infn.it>]

Dear all,
      I will take care of homework number 1. Kong will kindly help me in 
this task.

I was also once plotting for Fulvio these curves from Belle-II. So I can 
prepare them relatively easily. I have a script ready to strip the xml 
and generate a txt file and plot them in root.

Regards,
   Chandra

On 2023-03-20 18:38, Kiselev, Alexander via Eic-projdet-pfrich-l wrote:
> Dear All,
>
>    see our homework below. I guess question #1 is on Chandra. The
> problem I see with this question #1 is that a correct cut on the
> sufficient number of photons is pretty much >=1, as long as we believe
> that (1) tails of a gaussian / Poissonian distribution are as valid as
> its core for accounting the statistics, (2) ring finder is able to
> find small Npe rings as long as noise level is small.
>
>    Concerning #2a, we need a volunteer to build by hand Belle II
> RINDEX/ABSLENGTH/RAYLEIGH curves from
> https://github.com/alexander-kiselev/pfRICH/blob/main/database/BelleII.xml
> [1] .
>
>    Concerning #2b, I'm not sure I understand the question. Is it about
> the Rayleigh scattering, or so-called forward scattering?
>
>    Please step up to help, and we set up a meeting to discuss the
> details.
>
>    Regards,
>      Alexander.
>
> -------------------------
>
> From: Osborn, Joseph <josborn1 AT bnl.gov>
> Sent: Monday, March 20, 2023 1:20 PM
> To: Xiaochun He <xhe AT gsu.edu>; Murad G Sarsour <msar AT gsu.edu>;
> Kiselev, Alexander <ayk AT bnl.gov>; Tu, Zhoudunming
> <zhoudunming AT bnl.gov>; rachel.montgomery AT glasgow.ac.uk
> <rachel.montgomery AT glasgow.ac.uk>; chandradoy.chatterjee AT ts.infn.it
> <chandradoy.chatterjee AT ts.infn.it>; Bernd Surrow <surrow AT temple.edu>;
> Alex Eslinger <eslinger AT jlab.org>
> Cc: Huang, Jin <jhuang AT bnl.gov>; Carlos Munoz camacho
> <munoz AT jlab.org>; Silvia Dalla Torre <Silvia.DallaTorre AT cern.ch>;
> Ullrich,Thomas S <ullrich AT bnl.gov>; Richard G Milner <milner AT mit.edu>;
> ichiro.adachi AT kek.jp <ichiro.adachi AT kek.jp>;
> roberta.cardinale AT unige.it <roberta.cardinale AT unige.it>;
> Antonio.Di.Mauro AT cern.ch <Antonio.Di.Mauro AT cern.ch>; Carmelo
> D'Ambrosio <carmelo.d'ambrosio AT cern.ch>; lajoie AT iastate.edu
> <lajoie AT iastate.edu>; Benedikt Zihlmann <zihlmann AT jlab.org>
> Subject: bRICH Day 1 Homework
>
>  Dear all,
>
>  Thank you for all your hard work and for the presentations today. The
> review committee has compiled a list of homework questions. If you
> could reply to all with your answers before the closed session
> tomorrow, it would be greatly appreciated. We can also reserve 5
> minutes to discuss the answers before the start of each mRICH/pfRICH
> session tomorrow, if you would find it useful.
>
>  I included all speakers in this email, please feel free to add anyone
> in this email list I may have missed.
>
>  Thank you,
>
>  Joe Osborn
>
>  ________________________
>
>  Homework for mRICH:
>
>         * Provide transmission curves, clarity, radiation hardness, and any
> information on the properties of the fresnel lens and the aerogel from
> beam tests and optical bench tests.
>         * Is there detailed or quantitative information about the effect that
> the photon’s incident angle with respect to the fresnel lens has on
> its performance (e.g. focusing quality, photon losses)?
>         * Are the proponents open to using a different aerogel?
>
>  Homework for pfRICH
>
>         * Please show the acceptance-efficiency curves as functions of eta
> and phi, respectively, using a cut on a sufficient number of
> photoelectrons that could achieve the performance results required by
> the Yellow Report.
>         * Please provide general information about the transmission curve and
> clarity in the aerogel, and the angular distribution of scattering
> with respect to the primary photon’s direction.
>
>  ___________________________
>
>  Joe Osborn, Ph.D
>
>  Physics Department
>
>  Brookhaven National Laboratory
>
>  josborn1 AT bnl.gov
>
>
>
> Links:
> ------
> [1] 
> https://github.com/alexander-kiselev/pfRICH/blob/main/database/BelleII.xml
> _______________________________________________
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--
=====================================
Chandradoy Chatterjee
Email:  1) chandradoy.chatterjee AT ts.infn.it
        2) chandradoy.chatterjee AT cern.ch
INFN Trieste,
Area Science Park, Palazzina L3,
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TS - 34149
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