Re: [fluka-discuss]: Activity and RESNUCLE

From: Anna Ferrari <>
Date: Fri, 13 Feb 2015 14:14:57 +0100

Dear Roxana,

  for both questions: if you have defined your irradiation profile and
switched on the residual radiation treatment via the other
radioactivity-related commands (RADDECAY and DCYTIMES), you always obtain the
results normalized per unit time (per s) *if* you associate a decay time to
your estimator -USRBIN, RESNUCLEi in your case- via DCYSCORE.
  1. when you score ACTIVITY you obtain results in Bq/cm^3, for the considered
decay time;
  2. when you plot the RESNUCLEi output in the A-Z plane you get results in
Bq/cm^3 (always for the given decay time), *if* you gave in input the region
volume (otherwise you obtain the activity integrated over the analyzed
If instead the RESNUCLEi detector is not associated to any decay time, then
you get results in nuclei/cm^3 per primary (provided that the volume is
given, as said above, otherwise the volume is set to 1)

Best regards,

Am Wed, 11 Feb 2015 13:13:30 +0000 schrieb Roxana-georgiana Rata U1179323
> Dear FLUKA experts,
> I have 2 questions regarding the results obtained using USRBIN and RESNUCLE.
> 1. I know that for activation studies, when you have the IRRPROFI card, the
>dose equivalent obtained is already in ps/s. This rule is applied also when
>you want to score the ACTIVITY (R-PHI-Z point)? For example my results will
>be on Bq/cm^3/primary or just Bq/cm^3 as I already defined the beam intensity
>with the IRRPROFI?
> 2. When I plot the residual nuclei as function of A and Z, the results will
>be nuclei/cmc/primary or Bq/primary?
> I apologise for my stupid questions but I am a bit confused and I want to be
>sure that my results are correct.
> Thank you!
> Regards,
> Roxana
> University of Huddersfield inspiring tomorrow's professionals.
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Dr. Anna Ferrari
Institute of Radiation Physics
Helmholtz-Zentrum Dresden-Rossendorf e.V.
Tel. +49 351 260 2872

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Received on Fri Feb 13 2015 - 15:54:16 CET

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