Re: Separating out activity from gaseous residual nuclei

Hello Mina,

that depends how "exotic" the nucleus is ... I have a reference covering
all those with a half-life > 2 minutes: Annex 3 of
http://www.admin.ch/ch/f/rs/c814_501.html . That should be o.k. for an
estimation of the dose equivalent rate from the gas container at times
after turn-off of the facility.

Regards, Thomas

On 13.09.2011 20:21, Mina Nozar wrote:
> Dear Thomas and Joachim,
>
> Thank you for your responses.
>
> I have been doing post processing with the outputs of the res. nuclei
> estimator for isotope production, activities, and dose rates (mainly
> to look at the time evolution of activities and dose rates) so I can
> do what you have suggested. Is there a table of gamma factors for
> rare isotopes? Fluka must have a list/table already, no?
>
> Thanks and best wishes,
> Mina
>
>
> On 11-09-08 11:59 PM, Thomas Otto wrote:
>> You can write an offline program which filters the relevant lines,
>> identified by A and Z, from the average output files from RESNUC
>> generated by usrsuw.f . Since the gases are collected in a container,
>> you can get an estimate of the (ambient) dose rate by multiplying the
>> activities thus obtained with the gamma-constant, i.e. the dose rate per
>> unit activity, and with 1/distance^2.
>>
>> ------------------------------------------------
>> Thomas Otto
>> Safety Officer Technology Department
>> TE-HDO
>> CERN
>> CH-1211 Geneve 23
>>
>> Tel (+41)(0) 22 76 73272
>> GSM (+41)(0) 76 487 0648
>>
>
Received on Wed Sep 14 2011 - 09:06:50 CEST