Extracting thermal neutron cross-sections from ENDF libraries?

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Discussion Overview

The discussion revolves around the extraction of thermal neutron cross-section data from ENDF libraries for various isotopes. Participants are seeking tools or methods to compile this data efficiently for educational purposes, specifically for modernizing a course.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant inquires about tools for extracting thermal neutron cross-section data from ENDF for all available isotopes, expressing concern about the potential for errors in manual data collection.
  • Another participant shares their experience in developing codes for neutron transport that could extract cross-sections from ENDF/B tapes, suggesting that these codes may be archived at a National Lab.
  • A third participant recommends NJOY as a commonly used application for this purpose, providing several links to resources related to NJOY.
  • A later reply expresses gratitude for the recommendation of NJOY, indicating it meets the needs of the original inquiry.

Areas of Agreement / Disagreement

Participants generally agree on the utility of NJOY as a tool for extracting cross-section data, but there is no consensus on the availability of other tools or methods, as the discussion includes various suggestions and personal experiences.

Contextual Notes

Limitations include the potential for errors in manual data extraction and the reliance on specific tools that may not be universally accessible or applicable to all isotopes.

Hologram0110
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Hi Everyone,
Does anyone know of a tool that can extract thermal neutron cross-section data from endf for all availible isotopes? I'm trying to help my professor compile some data to modernize one of his courses. I'm trying to find a list of capture and scattering cross-sections for a wide list of isotopes. I've found the databases online (here and here) but short of manually looking up every isotope and recording the cross-sections I don't see a way to extract the data.

Anyone have any ideas? Doing it manually seems like it would likely result in mistakes.
 
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Hologram0110 said:
Hi Everyone,
Does anyone know of a tool that can extract thermal neutron cross-section data from endf for all availible isotopes? I'm trying to help my professor compile some data to modernize one of his courses. I'm trying to find a list of capture and scattering cross-sections for a wide list of isotopes. I've found the databases online (here and here) but short of manually looking up every isotope and recording the cross-sections I don't see a way to extract the data.

Anyone have any ideas? Doing it manually seems like it would likely result in mistakes.

Many years ago I was head of a group which developed codes for neutron transport. As part of the program we developed codes which extracted cross-sections from ENDF/B tapes and massaged them for our codes. I believe the codes eventually ended up in the archive of one of the National Labs (Brookhaven ?). Try contacting them.
 
Thanks Astronuc! That is exactly the sort of program I was looking for. I knew there had to be one out there.
 

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