Re: How can I score neutron fluence?

Dear Lantzelot and all,

Thanks for prompt reply. I'm not really sure about 3 MeV proton beam
give any (p,n) reaction in air. But DEFAULTS card description in Fluka
manual says, particle transport threshold set at 10 MeV.(NEW-DEFAults)

Can't I change the threshold to 3 MeV with PART-THRes card? ( I tried
but it doesn't make any difference)

Best regards

Gorkem Turemen

On 03/29/2011 01:18 AM, Lantzelot wrote:
> Dear Gorkem,
>
> Are you sure that the proton energy 3 MeV is enough to give any (p,n)
> reaction in any of the materials? Please double check the threshold
> for any neutron producing reaction. If you are not sure, try with
> 10-15 MeV beam energy and then decrease it until you reach threshold.
>
> Best wishes,
> Mattias Lantz
>
>
> On 28/03/11 14:33, Gorkem Turemen wrote:
>> Dear all,
>>
>> Why I can't score neutrons ? (generated from 3 MeV proton beam) However
>> I can score neutrons when I increase the energy to GeV degree.
>>
>> I'm already waiting for suggestions. I attached my input file.
>>
>> Thanks a lot.
>>
>> Best regards..
>>
>> Gorkem Turemen
>>
>
>
Received on Wed Mar 30 2011 - 10:30:56 CEST