Re: How to define the hydrogen liquid?

From: Hantao Jing <jinght_at_mail.ihep.ac.cn>
Date: Wed, 17 Dec 2008 10:14:46 +0800

Dear Mr. Fasso',
    As what you said, I run the input file successfully. I am sorry to
waste too much your time. It is my false to employ the data from table
10.6, instead of table 10.3, in fluka manual.
    Thank you very much again!

                                          Best regards,
                                          Hantao jing
                                          2008-12-17

Alberto Fasso' wrote:
> 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 Wed Dec 17 2008 - 22:37:36 CET

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