Dear Vegard,
I thought that applying LAM-BIAS you could bias the hadronic inelastic
interaction length and increase the number of hadronic interaction in your
layer of Uranium...
Cheers,
Andrea
> Dear Andrea (and other Fluka users),
>
> Thanks for the answer!
>
> Why do I need to use LAM-BIAS? The results does seem reasonable when
> having a 2 microns uranium target, although I am thinking of taking
> this down to 1 micron.
>
> I am interested in what comes out of the thin uranium region. It is
> just meant as a converter material. And if I use LAM-BIAS, what
> consequences will it have?
>
> Best,
> Vegard Gjerde
>
>
>
> Quoting Andrea.Mairani_at_mi.infn.it:
>
>> Dear User,
>> About the definition of natural Uranium, you could do for example:
>> MATERIAL 92.0 235.0439 18.95 235.0 235-U
>> MATERIAL 92.0 238.0508 18.95 238.0 238-U
>> MATERIAL 18.95 URANIUM (remember to define the density of your new
>> material)
>> COMPOUND -0.0072 235-U -0.9928 238-U URANIUM
>>
>> in this way the materials 235-U and 238-U are automatically recognized
>> for
>> what concerns the low energy neutrons.
>> If you will have thin layer of Uranium probably you will need the
>> LAM-BIAS
>> card http://www.fluka.org/fluka.php?id=man_onl&sub=45 to perform a
>> biasing
>> of the inelastic hadronic interaction length.
>>
>> Cheers,
>> Andrea
>>
>>
>>
>>> Dear Fluka users,
>>>
>>> I want to have a material which is 99.28% U238 and 0.72% U235. I want
>>> to use a proton beam to create fission products in a thin uranium
>>> "slice". I tried doing it like this:
>>>
>>> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....
>>> MATERIAL 92. 235. 18.95
>>> U235
>>> MATERIAL 92. 238. 18.95
>>> U238
>>> COMPOUND -0.9928 U238 -0.0072 U235
>>> URANIUM
>>> LOW-MAT U238 92. 238. 296.
>>> 238-U
>>> LOW-MAT U235 92. 235. 296.
>>> 235-U
>>> ASSIGNMA URANIUM CONVERT
>>>
>>>
>>>
>>> Will this work? Any better way to do it?
>>>
>>>
>>> Best regards,
>>> Vegard Gjerde
>>>
>>
>>
>>
>
>
Received on Sat Jun 28 2014 - 17:13:06 CEST