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Add the ability to build cross_sections.xml files from multiple nuclear data libraries #20
Description
This issue is added in response to a requirement from @shimwell and @ukaea.
Currently cross_sections.xml files are based on a single library (e.g. TENDL or FENDL) but it would be useful if “hybrid” cross section xml files can be built by combining several libraries. An order of preference would be needed to decide which cross section h5 file is used if the isotope is available in both libraries (e.g combine TENDL and FENDL using FENDL as a priority). The python script should be a command line tool that accepts arguments for library xml files to combine.
I'm planning to create a script which requires 2x arguments:
- A list of existing libraries (referenced by path) from which to create the combined library, in order or preference
- A name/path to use for the new library
The script will locate and parse the cross_sections.xml files from each of the chosen libraries, sort the combined list of unique entries to create a combined library object and then output a new cross_sections.xml as per the existing convert/generate scripts. The .h5 files will be copied from each library folder as required (rather than parsing and exporting them).
Any suggestions or thoughts would be much appreciated.
Activity
shimwell commentedon Feb 6, 2020
This sounds great and will be super use full for those of us using mixed cross section libraries.
At the moment I used the nndc script to make cross_sections.xml which includes neutrons and photons and then I splice this with other scripts to get a combined cross section.xml will all the isotopes used in the problem.
I look forward to giving this a go when ready
shimwell commentedon Nov 11, 2020
Ah I should have marked this as done a while back, sorry for the delay.
For anyone reading this the combine_libraries script allows combined cross_setions.xml files to be made.
Here is an example which would combine fendl, nndc and tendl (assuming you have them downloaded) and make a nice combined combined_cross_sections.xml which contains all of them in the input order