Difference between revisions of "Definitions, units and constants"
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| Apart from solid 2 (unstructured mesh) points file which
| Apart from solid 2 (unstructured mesh) points file which are in m
Revision as of 13:55, 17 July 2018
- ZA defines the element and isotope as 1000 Z + A, where Z is the proton number and A is the mass number. For example, the ZA for U-235 is 92235.
- ZA.id defines nuclides in cross section data libraries. ZA identifies the nuclide and id is the library id (for example, 92235.09c).
- ZAI defines the element, isotope and isomeric state as 10000 Z + 10 A + I, where Z is the proton number, A is the mass number and I is the isomeric state. For example, the ZAI for U-235 is 922350 and the ZAI for Am-242m is 952421.
|Distance||cm||Apart from solid 2 (unstructured mesh) points file which are in m|
|Time||s||depends on the case|
|Microscopic cross section||b||barn = 10-24 cm2|
|Macroscopic cross section||1/cm|
|Atomic density||1024/cm3||( = b-1cm-1)|
|Reaction rate||1/cm3s||reaction rate density|
|Burnup||MWd/kgU||per total initial heavy metal|
|INFTY||1037||N/A||Used to denote infinity|
|ZERO||10-37||N/A||The smallest nonzero absolute value|