[fluka-discuss]: Re: Number of primaries for a radioactive source?

From: Fasso, Alberto <fasso_at_slac.stanford.edu>
Date: Wed, 11 Nov 2015 15:25:18 +0000

From the manual, Note 8) to command BEAM:
...... if the isotope is radioactive, it will be necessary to request decay in
            semi-analogue mode (command RADDECAY with WHAT(1) > 1).
            decay secondaries are sampled over the whole decay time from zero to
            infinity, and all scoring will refer to the time integral of isotope
            activity (dose, fluence, current, yield or residual nuclei PER

Therefore, "number of primaries" in this case means "number of decays"


From: owner-fluka-discuss_at_mi.infn.it <owner-fluka-discuss_at_mi.infn.it> on behalf of Hakan AKYILDIRIM <hakanakyildirim_at_sdu.edu.tr>
Sent: Wednesday, November 11, 2015 5:11 AM
To: fluka-discuss_at_fluka.org
Subject: [fluka-discuss]: Number of primaries for a radioactive source?

Dear FLUKA experts & users

For a radioactive source defined (by using HI-PROPE, RADDECAY and DCYCSORE cards), what does "number of primaries" mean? For example, in the decay of Cs-137 both beta and gamma particles are emitted. Assume that I defined 1.0E+6 primaries by START option. What does this number account for? Betas? Gammas? or sum of two?


Süleyman Demirel University
Faculty of Science & Arts
Physics Dept. (Nuclear Physics)

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Received on Wed Nov 11 2015 - 16:25:18 CET

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