Added synchotron radiation from Zohm 2019#22
Merged
matt-pharr merged 3 commits intomainfrom Sep 4, 2024
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
I added synchrotron radiation back in. I was hesitant as it seemed small when I worked it out on pen/paper, but it tends to be larger than ohmic heating for reactor plasmas it seems so it is worth including.
I subtracted it from the total power used in the scaling law, assuming it was a straight loss from the total plasma power. I did this due to the following reasoning from the ITER physics basis:
With respect to other factors that may influ- ence the confinement time, but which are poorly accounted for in the dataset, we mention that, for practical reasons, the power lost by radiation inside the separatrix of the existing devices has been neglected when deriving the scalings. However, for ITER, such radiation is subtracted from the loss power when calculating the projected energy con- finement time. This approach has been motivated by the fact that ITER, in contrast to the present day tokamaks, will have a substantial amount of bremsstrahlung and cyclotron emission from the plasma centre.[1] I. P. E. G. on Confinement, Transport, I. P. E. G. on C. Modelling, Database, and I. P. B. Editors, Chapter 2: Plasma Confinement and Transport, Nucl. Fusion 39, 2175 (1999).
Does not affect the MANTA POPCON much: