RE: definition of liquid hydrogen?

From: Alberto Fasso' <fasso_at_slac.stanford.edu>
Date: Thu, 10 May 2012 11:43:11 -0700 (PDT)

Brandon,

the COMPOUND command is used to define compounds (or mixtures or alloys) of two
or more different elements. The H2 molecule is not a compound: it is made of two
atoms of the same element. You need only a normal MATERIAL card to define it.

Alberto

On Thu, 3 May 2012, REDDELL, BRANDON D. (JSC-EV511) wrote:

> Apparently my last email got messed up. Here it is again for clarity:
>
> I am having trouble defining liquid hydrogen. Below is the email exchange from when this
> question was brought here before. I tried to create the Material/Compound cards for the
> latest version of FLUKA , such as:
>
> *Liquid H2
> MATERIAL 1.0 1.00794 0.0000837 3.0 0.0 0.0 HYDROGEN
> LOW-MAT HYDROGEN 1. -2. 87. 0.0 0. HYDROGEN
> MATERIAL 0.0 0.0 0.07 26.0 0.0 0.0 LH2
> COMPOUND 2.0 3.0 0.0 0.0 0.0 0.0 LH2
>
> I am not quite getting the results I thought I would (using PRECISIOn defaults)
> and suspect that this is not being defined correctly. Can someone tell me what I am doing wrong?
>
> Thanks.
Received on Fri May 11 2012 - 10:57:59 CEST

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