[fluka-discuss]: Re: Need your help

From: Francesco Cerutti <Francesco.Cerutti_at_cern.ch>
Date: Tue, 29 Oct 2013 12:04:38 +0100

Dear Oyeon,

if you want to get the isotope production per beam particle, use the
RESNUCLEi card *with no association to any cooling time* (i.e. do no put
your RESNUCLEi detector name in any DCYSCORE card). Concerning the
normalization to the region volume (just used as a scaling factor), if you
do not specify the latter in the RESNUCLEi card the resulting values
actually will not be expressed per cmc (despite the unit label in the
file, assuming in this case a default normalizing volume of 1 cmc) but
will refer to the whole region (nuclei/p in that region).
To process RESNUCLEi results, use usrsuw.

(Bq is the unit for the activity of radioisotopes *at a given time*, which
is the product of the radioisotope population at that time - depending
on build-up [from direct production and parent decay] and decay - by its
decay constant).

Best regards


Francesco Cerutti
CH-1211 Geneva 23
tel. ++41 22 7678962
fax ++41 22 7668854

On Tue, 29 Oct 2013, Oyeon Kum wrote:

> Dear Dr. Cerutti, 
> My name is Oyeon Kum, Ph.D. and is calculating radiation protection problems
> with FLUKA 2011 code at the Korean Institute of Radiological and Medical
> Sciences in Korea.
> I want to get Isotopic abundance (nuclei/p unit) of the produced nuclei as
> shown in L. Sarchiapone 's LNL Annual Report (attached here) about SPES
> project.
> I ran FLUKA code and supportive programs such as usrsuw and usrsuwev and
> tried to get the Isotopic abundance of the produced nuclei shown in Fig.2
> and Table 1 in his report, but I could not find it. Rather, I found the same
> values with different unit, nuclei/cmc/pr and Bq/cmc, from usrsuw and
> usrsuwev, respectively. The two results are also attached here. The file
> name, "output1_sum.lis" is from usrsuwev and "irr1day_61_sum.lis" from
> usrsuw.
> I would very much appreciate it if you could let me know how to get the
> isotopic abundance data from FLUKA code simulation and the meaning of the
> two different units with the same values, if possible. Thank you very much
> again in advance for your kindness.
> Sincerely,
> Oyeon Kum
> e-mail: okum1211_at_gmail.com; okum_at_kirams.re.kr
Received on Tue Oct 29 2013 - 13:03:40 CET

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