Re: [fluka-discuss]: Biasing Air Activation

From: Fasso, Alberto <>
Date: Thu, 23 Apr 2015 09:25:32 +0000

Hi Felix,
you can find in attachment the evaluations I have made of the 16O(gamma,n)15O and 14N(gamma,n)13N cross sections.
They are shown in the two pdf files. The experimental values are listed in the two *.exp files and the fitted cross sections in
the two *.curve files.
Those you have found (JENDL and IAEA) are just as good for your purposes. The fine structure (if it is really there) cannot change your results by a factor of two! But you can try, and then adopt those which give the highest results. In radiation
protection, if there are doubts it is always best to be conservative.


From: Stefan Roesler <>
Sent: Wednesday, April 22, 2015 6:53 PM
To: Vittorio Boccone; Felix Ernst Horst
Cc: Fasso, Alberto
Subject: RE: Re: [fluka-discuss]: Biasing Air Activation

Dear all

Sorry, I don't have evaluated cross sections for air activation by photons.


From: Vittorio Boccone []
Sent: 22 April 2015 20:24
To: Felix Ernst Horst
Cc:;; Stefan Roesler
Subject: Re: Re: [fluka-discuss]: Biasing Air Activation

Dear Felix,
 I have no direct experience to answer to this question in a satisfactory way. I forwarded the question to Alberto or Stefan who for sure have more experience in the field.


On Wed, Apr 22, 2015 at 11:06 AM, Felix Ernst Horst <<>> wrote:

A question besides FLUKA: Do you have a hint where to look for well-resolved and evaluated cross section data for the purpose of direct determination of the activation yield by folding it with the photon spectrum? The data i found in the JENDL library for O-16 and N-13 looks very smooth and seems not to include the fine structure as e.g. shown in plots in "P. Oblozinsky, Handbook on photonuclear data for applications: Cross-sections and spectra, IAEA-TECDOC-1178 (2000).". For my photon spectrum with a cutoff energy of 18 MeV the choice of which cross section i use might effect the result by factor of two or more i guess.

You can manage unsubscription from this mailing list at

Received on Thu Apr 23 2015 - 13:18:30 CEST

This archive was generated by hypermail 2.3.0 : Thu Apr 23 2015 - 13:18:32 CEST