UEDGE-CRUMPET predicted isotopologue effect on atomic and molecular emission in DIII-D high-recycling divertor plasmas

Holm, Andreas; Groth, Mathias; McLean, Adam; Scotti, Filippo; Rognlien, Thomas D.; Meyer, William H.; Shafer, Morgan W.; Wilcox, Robert S.; Hollmann, Eric M.

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dc.contributor	Aalto-yliopisto	fi
dc.contributor	Aalto University	en
dc.contributor.author	Holm, Andreas
dc.contributor.author	Groth, Mathias
dc.contributor.author	McLean, Adam
dc.contributor.author	Scotti, Filippo
dc.contributor.author	Rognlien, Thomas D.
dc.contributor.author	Meyer, William H.
dc.contributor.author	Shafer, Morgan W.
dc.contributor.author	Wilcox, Robert S.
dc.contributor.author	Hollmann, Eric M.
dc.date.accessioned	2023-03-22T07:53:48Z
dc.date.available	2023-03-22T07:53:48Z
dc.date.issued	2023-03
dc.identifier.citation	Holm , A , Groth , M , McLean , A , Scotti , F , Rognlien , T D , Meyer , W H , Shafer , M W , Wilcox , R S & Hollmann , E M 2023 , ' UEDGE-CRUMPET predicted isotopologue effect on atomic and molecular emission in DIII-D high-recycling divertor plasmas ' , Nuclear Materials and Energy , vol. 34 , 101337 . https://doi.org/10.1016/j.nme.2022.101337	en
dc.identifier.issn	2352-1791
dc.identifier.other	PURE UUID: b9145e1d-d196-4017-bad3-2647e2b13e5a
dc.identifier.other	PURE ITEMURL: https://research.aalto.fi/en/publications/b9145e1d-d196-4017-bad3-2647e2b13e5a
dc.identifier.other	PURE LINK: http://www.scopus.com/inward/record.url?scp=85147198923&partnerID=8YFLogxK
dc.identifier.other	PURE FILEURL: https://research.aalto.fi/files/103299453/SCI_Holm_etal_NME_2023.pdf
dc.identifier.uri	https://aaltodoc.aalto.fi/handle/123456789/120166
dc.description	Funding Information: This work was supported by US DOE under contract nos. DE-FC02-04ER54698, DE-AC52-07NA27344, and DE-AC05-00OR22725. This work was supported by the Academy of Finland under grant no. 13330050. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Funding Information: This work was supported by US DOE under contract nos. DE-FC02-04ER54698 , DE-AC52-07NA27344 , and DE-AC05-00OR22725 . This work was supported by the Academy of Finland under grant no. 13330050 . Publisher Copyright: © 2023 The Authors
dc.description.abstract	UEDGE-CRUMPET simulations indicate the impact of the molecular hydrogenic isotopologue effect under high-recycling LFS divertor conditions in DIII-D to be negligible for electron density and temperature profiles at the LFS target plate. A 30% decrease in molecular content, accompanied by a 10% increase in atomic content, is predicted for deuterium compared to hydrogen. The predicted isotopologue effect on the radiative power balance, validated with calibrated spectroscopy, is found to be small despite a 20% increase in LFS divertor molecular band emission for deuterium compared to hydrogen. The predictions and measurements show a negligible contribution of molecularly-induced atomic and direct molecular emission to the total radiative power balance under high-recycling conditions, consistent with previous EDGE2D-EIRENE investigations. The UEDGE-CRUMPET simulations were performed using effective hydrogen and deuterium rates considering molecular breakup and excitation processes for H2 and D2, calculated by theCRUMPET collisional-radiative model.	en
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Elsevier Science
dc.relation.ispartofseries	Nuclear Materials and Energy	en
dc.relation.ispartofseries	Volume 34	en
dc.rights	openAccess	en
dc.title	UEDGE-CRUMPET predicted isotopologue effect on atomic and molecular emission in DIII-D high-recycling divertor plasmas	en
dc.type	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä	fi
dc.description.version	Peer reviewed	en
dc.contributor.department	Department of Applied Physics
dc.contributor.department	Fusion and Plasma Physics
dc.contributor.department	Lawrence Livermore National Laboratory
dc.contributor.department	Oak Ridge National Laboratory
dc.contributor.department	University of California San Diego
dc.contributor.department	Department of Applied Physics	en
dc.subject.keyword	Balmer-alpha
dc.subject.keyword	Collisional-radiative
dc.subject.keyword	CRUMPET
dc.subject.keyword	DIII-D
dc.subject.keyword	Edge-fluid simulations
dc.subject.keyword	Fulcher
dc.subject.keyword	Isotope effect
dc.subject.keyword	Lyman-alpha
dc.subject.keyword	Lyman–Werner
dc.subject.keyword	Molecules
dc.subject.keyword	UEDGE
dc.identifier.urn	URN:NBN:fi:aalto-202303222491
dc.identifier.doi	10.1016/j.nme.2022.101337
dc.type.version	publishedVersion