Dear Alessandro,
There is a variable called AGESTK in FLKSTK which defines an age of the
primary particle, but i think a transport and interaction process of
each particle goes individually. If you push two particles with value
AGESTK (NPFLKA) = +ZERZER in FLKSTK the result for scoring would be the
same as if these two particles would have been emitted at the same time.
In attachment i have tried to test such source file (without any king of
energy and momentum conservation). One of the problems is how to define
BEAM card for different particles correctly. Should it be neutron or
alpha particle? I can't guarantee that FLUKA will not crash at some point.
Best regards,
Mikhail
On 08.04.2019 11:45, Alessandro wrote:
> Dear Mikhail,
>
> The goal to use two particle of different kind is that we want to
> preserve the coeherence between the alpha particle and the neutron. I
> was asking if it was possible to simulate the trasport of two
> different particle in the same time for fluka. I do not understand
> wery well how this thing of more than one particle works in the stack.
> If I should push more than one I will have two particle emitted at the
> same time?
>
> Best regards, Alessandro Calamida.
>
> Il 06/04/2019 08:08, Mikhail Polkovnikov <Михаил Полковников> ha scritto:
>> Dear Alessandro,
>>
>> You can push more than one particle in the FLUKA stack in your source
>> routine. What is the point of using two particles in the same time
>> especially of different kinds (do you want to preserve 4-vector
>> before and after fusion)?
>>
>>
>> From source.f file:
>> * Push one source particle to the stack. Note that you could as well
>> * push many but this way we reserve a maximum amount of space in the
>> * stack for the secondaries to be generated
>> * Npflka is the stack counter: of course any time source is called it
>> * must be =0
>>
>>
>> Best regards,
>> Mikhail
>>
>>
>> On 05.04.2019 13:02, Alessandro wrote:
>>> Dear FLUKA experts,
>>>
>>> I have a source that generates fusion neutrons but I want to follow
>>> the alpha particles too. It is possible to have a source that launch
>>> both particles at the same time or it will always only one of it at
>>> time?
>>>
>>> Best regards, Alessandro Calamida.
>>>
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Received on Mon Apr 08 2019 - 14:01:10 CEST