Dear Hantao Jing,
in the first case below, FLUKA does not recognize the material "HYDROGEN"
because you have given a wrong second numerical identifier. Check in the manual:
there is only one HYDROGEN at 87K:
H Free gas natural Hydrogen 87K ENDF/B-VIIR0 Y HYDROGEN 1 -2 87
(you have input -5. instead of -2.)
>>>>> MATERIAL 1. 1.007947 0.06 28. 0.0 0.HLIQUID
>>>>> LOW-MAT HLIQUID 1. -5. 87. 0.0 0.HYDROGEN
>>>>> *** (n,p) proton production activated for Xsec mat. # 1 ***
>>>>> **** Low energy neutron xsec not found for some media 5 6 ****
>>>>> HYDROGEN
>>>>>
In the second case, the third identifier is wrong. In the new library,
room temperature is 296 K, not 293.
There are 3 HYDROGEN at 296K:
H H2O bound natural Hydrogen 296K ENDF/B-VIIR0 Y HYDROGEN 1 -2 296
H CH2 bound natural Hydrogen 296K ENDF/B-VIIR0 Y HYDROGEN 1 -3 296
H Free gas natural Hydrogen 296K ENDF/B-VIIR0 Y HYDROGEN 1 -5 296
>>>>>
>>>>> MATERIAL 1. 1.007947 0.06 28. 0.0 0.HLIQUID
>>>>> LOW-MAT HLIQUID 1. -2. 293. 0.0 0.HYDROGEN
>>>>> *** (n,p) proton production activated for Xsec mat. # 1 ***
>>>>> **** Low energy neutron xsec not found for some media 5 6 ****
>>>>> HYDROGEN
Best regards,
Alberto
On Tue, 16 Dec 2008, Hantao Jing wrote:
> Dear Mr. Fasso',
> In fact, before I define the HLIQUID, I have defined water and air
> material(this input file for fluka courses is obtained from the fluka
> site,the water and air material has been defined before), namely, they will
> be assigned the material number 26 and 27. So the material HLIQUID will
> assigned the number 28. On the other hand, I also leave the material number
> blank and run this input file, I got the same error. So I believe that it is
> not wrong with material number. Can you to check it again?
> Thank you very much!
>
> Best regards,
> Hantao Jing
> 2008-12-16
Received on Tue Dec 16 2008 - 23:29:49 CET
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