Hi,
Does anyone of you know where I could get some details about C1
(detailed description, tests already made, etc) ?
I would like to simulate the respons of C1 after the passage of a
charged particle. The scheme I have in mind is:
---------------------
photon creation along
particle path in gaz (Np = C*L*(1 - 1/(beta2*n2))
---------------------
|
(here L is the effective particle path since there are some scatterings
and absorption, C is a constant)
need to know n (index of refraction for C4H10 at 1atm)
need to know effective absorption length in these conditions
|
|
photons are emitted in a cone of opening angle theta = acos(1/(beta*n))
|
|
---------|-----------
reflexion of photons
hitting the mirrors
---------------------
absortion?? side effects??
|
|
|
----------------------------
generation of photoelectrons
in PMT from incoming photons
converting respons in ADC
---------------------------
need to know quantum efficiency
need to know efficiency for collecting light (hopefully high!)
which wave length range the PMT is sensitive to
This looks rather simple but needs a very good knowledge of the physics of
C1. It could be also a start for RICH respons simulation.
A lot of help is needed.
Thanks.
Djamel
--
Djamel Ouerdane ------------------------------------------o
| Niels Bohr Intstitute | Home: |
| Blegdamsvej 17, DK-2100 Ø | Jagtvej 141 2D, |
| Fax: +45 35 32 50 16 | DK-2200 Copenhagen N |
| Tel: +45 35 32 52 69 | +45 35 86 19 74 |
| http://www.nbi.dk/~ouerdane |
| ouerdane@nbi.dk |
o---------------------------------------------------------o
This archive was generated by hypermail 2b29 : Mon May 21 2001 - 05:23:33 EDT