Dear Siamion,
If I understand correctly you would like to score the spatial distribution of Co60 in your target. You can indeed score the activity per volume unit with USRBIN and filter all the radionuclides which are not Co-60. To do so I am not sure about the logic you implemented, what I would suggest is to include the common block RSNCCM (INCLUDE '(RSNCCM)') in order to access the information on the isotope (IARSDL(MXRSDL),IZRSDL (MXRSDL), ISRSDL(MXRSDL)) and do the filtering....
RESNUCLE will give you all the produced radionuclides the two should be consistent for a single isotope after filtering for the following conditions :
- The region used for the RESNUCLE scoring exactly overlaps the USRBIN boundaries
- if you provided the correct volume in the RESNUCLE card and you make the average over all USRBIN entries
Hoping this help
Greetings
Joachim
From: owner-fluka-discuss_at_mi.infn.it [mailto:owner-fluka-discuss_at_mi.infn.it] On Behalf Of "Mikhail Polkovnikov <?????? ???????????>"
Sent: 12 March 2015 20:27
To: Semen Kuten; fluka-discuss_at_fluka.org
Subject: Re: [fluka-discuss]: Residual activity in target caused by given nuclide
On 12.03.2015 19:46, Semen Kuten wrote:
Dear Fluka experts,
The task I solve is a residual nuclei,activity and dose rate distributions in the target (Fe+Cu+trace amount of Co-59)
after 1 week irradiation with 450 GeV proton beam after cooling time (1 week and 1 year), caused by Co-60 (Z=27,A=60).
As far as I understood from Fluka Forum, in this case Fluka can not determine dose rate distributions, caused by Co-60.
As for caused-by-Co-60 activity, I have used recompiling Fluka with corresponding user file ( attached fecu.inp and comcsw.f).
Total (over nuclides) and caused-by-Co-60 activities are obtained through variable ACTIVITY. They seem to be
reasonable (first is greater than second).
But if I am trying to obtain this information through variable RESNUCLE, I can not understand the results corcerning
Co-60 nuclide and its activity. One and the same quantitity (Co-60 activity) has different values (see below)
Result for 1 nuclide only:Co-60/cooling time:1 week/ comcsw.f indicates this binning (#1) -> IF(ISCRNG.EQ.3.AND.JSCRNG.EQ.1)
fecu_29_sum.lis
Residual nuclei distribution **** **** (Bq/cmc)
Co-60 1.21E+02
Result for all nuclides, below Co-60 data only/cooling time:1 week/ comcsw.f does not indicate this binning (#2)
fecu_30_sum.lis
Residual nuclei distribution **** **** (Bq/cmc)
Co-60 2.41E+02
How can these results be interpreted ?
How can caused-by-Co-60 activity(total activity for Co-60) from RESNUCLE be compared with the one from ACTIVITY
(2D or 3D distribution in target)?
Thank you very much for your help,
Siamion Kutsen
Hi,
To score an activity for specific isotope in RESNUCLE card there is the usrrnc.f user routine.
I think without it the RESNUCLE card scores activity from all isotopes.
Best regards.
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Received on Tue Mar 17 2015 - 20:28:05 CET