Infinite neutron plane source in the vicinity of slab

AI Thread Summary
The discussion revolves around solving neutron diffusion equations for a plane source near a water slab, where substituting the source term with 1 results in flux values exceeding 1 in certain areas. This raises questions about the validity of the calculations. It is noted that if there is a flux gradient, the average value can be misleading, as it may not represent the maximum or minimum values accurately. For instance, an average of 0.5 could correspond to a low of 0.9 and a high of 1.1. Understanding the implications of flux gradients is crucial in interpreting the results correctly.
aser
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hello
I solve neutron diff eq for plane source in the vicinity of slab of water but if i substitute source term with 1 the flux in some places is greater than one! how it possible?! i am sure about my calculation so someone say me how it possible?
 
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aser said:
hello
I solve neutron diff eq for plane source in the vicinity of slab of water but if i substitute source term with 1 the flux in some places is greater than one! how it possible?! i am sure about my calculation so someone say me how it possible?
If one has a flux gradient, then the average value will be between the high and low values. For example, on a line between 0 and 1, the average value is 0.5. If one is an average value, then the low could be 0.9, while the maximum would be 1.1.
 

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