Dear Ali,
Since electrons, which were created in L3, have to cross an air layer (L2) before reaching L1 it can be ambiguous to say if they originate from L3 or L2: assume an electron emerges from L3 into L2, but then undergoes an ionization event in L2 where a delta-ray is produced. FLUKA does then not distinguish which of the electrons coming out of this ionization event was the incoming electron and which the delta-ray.
See also following discussion:
http://www.fluka.org/web_archive/earchive/new-fluka-discuss/6241.html
(if you are interested, there you can find also some hints how to keep track of where certain interactions happened and to propagate this information even to daughter particles, but as I mentioned above, there is some ambiguity concerning origin).
Cheers, Anton
________________________________________
From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] on behalf of Ali Koosha [koosha.ali_at_gmail.com]
Sent: 25 April 2014 11:11
To: fluka-discuss_at_fluka.org
Subject: [fluka-discuss]: Scoring the number of particles originating from a specific cell
Dear All,
I have a possibly simple question about more sophisticated scoring mechanisms of FLUKA.
Consider 3 successive 1D layers (L1, L2 and L3).
My question is due to scoring the “number” of particles (in this problem electrons) that enter the region L1 which were originated from region L3. By this, we meant that we are NOT interested in particles that their birthplace is region L2. Later I will put some other discrimination conditions. For example, I will suppress those who have reflected again from L1 to L2 or L3.
I’m relatively familiar with FLUSCW, but I was having certain troubles that I prefer to ask the community about possible solutions.
Best wishes,
A. Koosha
Received on Fri Apr 25 2014 - 13:01:13 CEST