Discussion Overview
The discussion revolves around plotting the reaction rate as a function of temperature using MATLAB, specifically focusing on integrating cross section data obtained from the exfor website. Participants explore the relationship between cross sections and reaction rates under Maxwellian conditions.
Discussion Character
- Technical explanation, Mathematical reasoning, Debate/contested
Main Points Raised
- One participant seeks guidance on how to integrate cross section data to plot reaction rates in MATLAB.
- Another participant confirms the need for numerical integration and clarifies the relationship between temperature and the average energy of nuclei in plasma.
- A participant mentions using pb11 cross section data and notes that textbooks often explain the difference between cross section and reaction rate without detailing the integration steps.
- Multiple participants inquire about the availability of raw data versus plots of cross sections, emphasizing the need for a table of values for integration.
- There is a discussion about whether the cross sections are evaluated at energy "E" or if they are differential cross sections, with a suggestion to convert them if necessary.
- A participant corrects their earlier statement regarding the treatment of cross sections, asserting that they are always evaluated at "E" and that dividing by "delta-E" is not required, but rather it is the flux that may depend on "E".
- A participant expresses a desire to edit their previous post due to the confusion caused by their earlier claim.
Areas of Agreement / Disagreement
Participants generally agree on the need for numerical integration and the importance of having the correct form of cross section data. However, there is some disagreement regarding the treatment of cross sections and whether they need to be converted to differential form.
Contextual Notes
Limitations include potential missing assumptions about the nature of the cross section data and the specific integration methods to be used in MATLAB. The discussion does not resolve whether the cross sections should be treated as differential or not.
