Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE

We compare various diagnostics characterizing an ASDEX Upgrade upper single-null discharge to EMC3-EIRENE simulations now including volumetric recombination and main chamber plasma-wall interaction but not yet drifts. The discharge is in a small-ELM regime and is approaching detachment due to a dens...

Full description

Saved in:
Bibliographic Details
Published in:Plasma physics and controlled fusion 2020-10, Vol.62 (10), p.105016
Main Authors: Lunt, T, Frerichs, H, Bernert, M, Brida, D, Carralero, D, Cavedon, M, David, P, Drenik, A, Faitsch, M, Feng, Y, Griener, M, Herrmann, A, Kurzan, B, Pan, O, Plank, U, Silvagni, D, Willensdorfer, M, Wischmeier, M, Wolfrum, E
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASDEX Upgrade
detachment
EMC3-EIRENE
power exhaust
Tokamak
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73
cites cdi_FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73
container_end_page
container_issue 10
container_start_page 105016
container_title Plasma physics and controlled fusion
container_volume 62
creator Lunt, T
Frerichs, H
Bernert, M
Brida, D
Carralero, D
Cavedon, M
David, P
Drenik, A
Faitsch, M
Feng, Y
Griener, M
Herrmann, A
Kurzan, B
Pan, O
Plank, U
Silvagni, D
Willensdorfer, M
Wischmeier, M
Wolfrum, E
description We compare various diagnostics characterizing an ASDEX Upgrade upper single-null discharge to EMC3-EIRENE simulations now including volumetric recombination and main chamber plasma-wall interaction but not yet drifts. The discharge is in a small-ELM regime and is approaching detachment due to a density ramp and nitrogen seeding. Time/ELM averaged upstream density, electron and ion temperature measurements as well as downstream ion saturation current, electron temperature and power flux measurements match the simulation within the error bars before and after reaching detachment, qualifying the code for this regime. Although the Ion Cyclotron Resonance Heating (ICRH) antenna limiters are 35 mm away from the separatrix, i.e. ten times the typical near-SOL power fall-off length λqnear = 3.8 mm, they receive power fluxes of several hundreds of kW exceeding the ones to the outer target in the detached phase and strongly contribute to the particle fueling. This is explained by a substantially larger far-SOL power fall-off length λqfar = 25 mm possibly caused by the small ELMs in the detached phase and the occurrence of a density shoulder.
doi_str_mv 10.1088/1361-6587/aba9ff
format article
fullrecord <record><control><sourceid>iop_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_1705062</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>ppcfaba9ff</sourcerecordid><originalsourceid>FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73</originalsourceid><addsrcrecordid>eNp1kN9LwzAUhYMoOKfvPgafF5c0_fk4ZtXBNkEd-BZuk5uto2tL0oH77-2o-ObThcN3DtyPkHvBHwVP06mQsWBxlCZTKCCz9oKM_qJLMuJJKJiUMromN97vORciDeIR-V4jOEahNtSCo147aJE11tIKTuho56D2beM66rujKdHTsqYGO9A7NBPqD1BVLF-u6OzjKf-im3brwCA1pdc7cNueL070gP0IbSzNV3PJ8sV7vs5vyZWFyuPd7x2TzXP-OX9ly7eXxXy2ZFqGWcdEGklEk2YGC55mGMsogsCmBjEDgTyGuM9Do3Vg0YZcB1pEBmUhAXSmEzkmD8Nu47tSeV12qHe6qWvUnRIJj3gc9BAfIO0a7x1a1bryAO6kBFdnversUp1dqkFvX5kMlbJp1b45urr_4n_8B3ObfII</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE</title><source>Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)</source><creator>Lunt, T ; Frerichs, H ; Bernert, M ; Brida, D ; Carralero, D ; Cavedon, M ; David, P ; Drenik, A ; Faitsch, M ; Feng, Y ; Griener, M ; Herrmann, A ; Kurzan, B ; Pan, O ; Plank, U ; Silvagni, D ; Willensdorfer, M ; Wischmeier, M ; Wolfrum, E</creator><creatorcontrib>Lunt, T ; Frerichs, H ; Bernert, M ; Brida, D ; Carralero, D ; Cavedon, M ; David, P ; Drenik, A ; Faitsch, M ; Feng, Y ; Griener, M ; Herrmann, A ; Kurzan, B ; Pan, O ; Plank, U ; Silvagni, D ; Willensdorfer, M ; Wischmeier, M ; Wolfrum, E ; Univ. of Wisconsin, Madison, WI (United States)</creatorcontrib><description>We compare various diagnostics characterizing an ASDEX Upgrade upper single-null discharge to EMC3-EIRENE simulations now including volumetric recombination and main chamber plasma-wall interaction but not yet drifts. The discharge is in a small-ELM regime and is approaching detachment due to a density ramp and nitrogen seeding. Time/ELM averaged upstream density, electron and ion temperature measurements as well as downstream ion saturation current, electron temperature and power flux measurements match the simulation within the error bars before and after reaching detachment, qualifying the code for this regime. Although the Ion Cyclotron Resonance Heating (ICRH) antenna limiters are 35 mm away from the separatrix, i.e. ten times the typical near-SOL power fall-off length λqnear = 3.8 mm, they receive power fluxes of several hundreds of kW exceeding the ones to the outer target in the detached phase and strongly contribute to the particle fueling. This is explained by a substantially larger far-SOL power fall-off length λqfar = 25 mm possibly caused by the small ELMs in the detached phase and the occurrence of a density shoulder.</description><identifier>ISSN: 0741-3335</identifier><identifier>EISSN: 1361-6587</identifier><identifier>DOI: 10.1088/1361-6587/aba9ff</identifier><identifier>CODEN: PLPHBZ</identifier><language>eng</language><publisher>United States: IOP Publishing</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ASDEX Upgrade ; detachment ; EMC3-EIRENE ; power exhaust ; Tokamak</subject><ispartof>Plasma physics and controlled fusion, 2020-10, Vol.62 (10), p.105016</ispartof><rights>2020 The Author(s). Published by IOP Publishing Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73</citedby><cites>FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73</cites><orcidid>0000-0002-1080-4200 ; 0000-0002-7824-3307 ; 0000-0002-9809-7490 ; 0000-0003-2953-536X ; 0000-0003-3827-0674 ; 0000-0002-7386-1456 ; 0000-0002-8647-7058 ; 0000-0003-2103-3592 ; 000000032953536X ; 0000000273861456 ; 0000000210804200 ; 0000000298097490 ; 0000000321033592 ; 0000000286477058 ; 0000000338270674 ; 0000000278243307</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,786,790,891,27957,27958</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1705062$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Lunt, T</creatorcontrib><creatorcontrib>Frerichs, H</creatorcontrib><creatorcontrib>Bernert, M</creatorcontrib><creatorcontrib>Brida, D</creatorcontrib><creatorcontrib>Carralero, D</creatorcontrib><creatorcontrib>Cavedon, M</creatorcontrib><creatorcontrib>David, P</creatorcontrib><creatorcontrib>Drenik, A</creatorcontrib><creatorcontrib>Faitsch, M</creatorcontrib><creatorcontrib>Feng, Y</creatorcontrib><creatorcontrib>Griener, M</creatorcontrib><creatorcontrib>Herrmann, A</creatorcontrib><creatorcontrib>Kurzan, B</creatorcontrib><creatorcontrib>Pan, O</creatorcontrib><creatorcontrib>Plank, U</creatorcontrib><creatorcontrib>Silvagni, D</creatorcontrib><creatorcontrib>Willensdorfer, M</creatorcontrib><creatorcontrib>Wischmeier, M</creatorcontrib><creatorcontrib>Wolfrum, E</creatorcontrib><creatorcontrib>Univ. of Wisconsin, Madison, WI (United States)</creatorcontrib><title>Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE</title><title>Plasma physics and controlled fusion</title><addtitle>PPCF</addtitle><addtitle>Plasma Phys. Control. Fusion</addtitle><description>We compare various diagnostics characterizing an ASDEX Upgrade upper single-null discharge to EMC3-EIRENE simulations now including volumetric recombination and main chamber plasma-wall interaction but not yet drifts. The discharge is in a small-ELM regime and is approaching detachment due to a density ramp and nitrogen seeding. Time/ELM averaged upstream density, electron and ion temperature measurements as well as downstream ion saturation current, electron temperature and power flux measurements match the simulation within the error bars before and after reaching detachment, qualifying the code for this regime. Although the Ion Cyclotron Resonance Heating (ICRH) antenna limiters are 35 mm away from the separatrix, i.e. ten times the typical near-SOL power fall-off length λqnear = 3.8 mm, they receive power fluxes of several hundreds of kW exceeding the ones to the outer target in the detached phase and strongly contribute to the particle fueling. This is explained by a substantially larger far-SOL power fall-off length λqfar = 25 mm possibly caused by the small ELMs in the detached phase and the occurrence of a density shoulder.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ASDEX Upgrade</subject><subject>detachment</subject><subject>EMC3-EIRENE</subject><subject>power exhaust</subject><subject>Tokamak</subject><issn>0741-3335</issn><issn>1361-6587</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kN9LwzAUhYMoOKfvPgafF5c0_fk4ZtXBNkEd-BZuk5uto2tL0oH77-2o-ObThcN3DtyPkHvBHwVP06mQsWBxlCZTKCCz9oKM_qJLMuJJKJiUMromN97vORciDeIR-V4jOEahNtSCo147aJE11tIKTuho56D2beM66rujKdHTsqYGO9A7NBPqD1BVLF-u6OzjKf-im3brwCA1pdc7cNueL070gP0IbSzNV3PJ8sV7vs5vyZWFyuPd7x2TzXP-OX9ly7eXxXy2ZFqGWcdEGklEk2YGC55mGMsogsCmBjEDgTyGuM9Do3Vg0YZcB1pEBmUhAXSmEzkmD8Nu47tSeV12qHe6qWvUnRIJj3gc9BAfIO0a7x1a1bryAO6kBFdnversUp1dqkFvX5kMlbJp1b45urr_4n_8B3ObfII</recordid><startdate>20201001</startdate><enddate>20201001</enddate><creator>Lunt, T</creator><creator>Frerichs, H</creator><creator>Bernert, M</creator><creator>Brida, D</creator><creator>Carralero, D</creator><creator>Cavedon, M</creator><creator>David, P</creator><creator>Drenik, A</creator><creator>Faitsch, M</creator><creator>Feng, Y</creator><creator>Griener, M</creator><creator>Herrmann, A</creator><creator>Kurzan, B</creator><creator>Pan, O</creator><creator>Plank, U</creator><creator>Silvagni, D</creator><creator>Willensdorfer, M</creator><creator>Wischmeier, M</creator><creator>Wolfrum, E</creator><general>IOP Publishing</general><general>IOP Science</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-1080-4200</orcidid><orcidid>https://orcid.org/0000-0002-7824-3307</orcidid><orcidid>https://orcid.org/0000-0002-9809-7490</orcidid><orcidid>https://orcid.org/0000-0003-2953-536X</orcidid><orcidid>https://orcid.org/0000-0003-3827-0674</orcidid><orcidid>https://orcid.org/0000-0002-7386-1456</orcidid><orcidid>https://orcid.org/0000-0002-8647-7058</orcidid><orcidid>https://orcid.org/0000-0003-2103-3592</orcidid><orcidid>https://orcid.org/000000032953536X</orcidid><orcidid>https://orcid.org/0000000273861456</orcidid><orcidid>https://orcid.org/0000000210804200</orcidid><orcidid>https://orcid.org/0000000298097490</orcidid><orcidid>https://orcid.org/0000000321033592</orcidid><orcidid>https://orcid.org/0000000286477058</orcidid><orcidid>https://orcid.org/0000000338270674</orcidid><orcidid>https://orcid.org/0000000278243307</orcidid></search><sort><creationdate>20201001</creationdate><title>Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE</title><author>Lunt, T ; Frerichs, H ; Bernert, M ; Brida, D ; Carralero, D ; Cavedon, M ; David, P ; Drenik, A ; Faitsch, M ; Feng, Y ; Griener, M ; Herrmann, A ; Kurzan, B ; Pan, O ; Plank, U ; Silvagni, D ; Willensdorfer, M ; Wischmeier, M ; Wolfrum, E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ASDEX Upgrade</topic><topic>detachment</topic><topic>EMC3-EIRENE</topic><topic>power exhaust</topic><topic>Tokamak</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lunt, T</creatorcontrib><creatorcontrib>Frerichs, H</creatorcontrib><creatorcontrib>Bernert, M</creatorcontrib><creatorcontrib>Brida, D</creatorcontrib><creatorcontrib>Carralero, D</creatorcontrib><creatorcontrib>Cavedon, M</creatorcontrib><creatorcontrib>David, P</creatorcontrib><creatorcontrib>Drenik, A</creatorcontrib><creatorcontrib>Faitsch, M</creatorcontrib><creatorcontrib>Feng, Y</creatorcontrib><creatorcontrib>Griener, M</creatorcontrib><creatorcontrib>Herrmann, A</creatorcontrib><creatorcontrib>Kurzan, B</creatorcontrib><creatorcontrib>Pan, O</creatorcontrib><creatorcontrib>Plank, U</creatorcontrib><creatorcontrib>Silvagni, D</creatorcontrib><creatorcontrib>Willensdorfer, M</creatorcontrib><creatorcontrib>Wischmeier, M</creatorcontrib><creatorcontrib>Wolfrum, E</creatorcontrib><creatorcontrib>Univ. of Wisconsin, Madison, WI (United States)</creatorcontrib><collection>IOP Publishing (Open access)</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Plasma physics and controlled fusion</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lunt, T</au><au>Frerichs, H</au><au>Bernert, M</au><au>Brida, D</au><au>Carralero, D</au><au>Cavedon, M</au><au>David, P</au><au>Drenik, A</au><au>Faitsch, M</au><au>Feng, Y</au><au>Griener, M</au><au>Herrmann, A</au><au>Kurzan, B</au><au>Pan, O</au><au>Plank, U</au><au>Silvagni, D</au><au>Willensdorfer, M</au><au>Wischmeier, M</au><au>Wolfrum, E</au><aucorp>Univ. of Wisconsin, Madison, WI (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE</atitle><jtitle>Plasma physics and controlled fusion</jtitle><stitle>PPCF</stitle><addtitle>Plasma Phys. Control. Fusion</addtitle><date>2020-10-01</date><risdate>2020</risdate><volume>62</volume><issue>10</issue><spage>105016</spage><pages>105016-</pages><issn>0741-3335</issn><eissn>1361-6587</eissn><coden>PLPHBZ</coden><notes>PPCF-102906.R2</notes><notes>SC0020357; SC0020284; 633053</notes><notes>European Research Council (ERC)</notes><notes>USDOE Office of Science (SC), Fusion Energy Sciences (FES)</notes><abstract>We compare various diagnostics characterizing an ASDEX Upgrade upper single-null discharge to EMC3-EIRENE simulations now including volumetric recombination and main chamber plasma-wall interaction but not yet drifts. The discharge is in a small-ELM regime and is approaching detachment due to a density ramp and nitrogen seeding. Time/ELM averaged upstream density, electron and ion temperature measurements as well as downstream ion saturation current, electron temperature and power flux measurements match the simulation within the error bars before and after reaching detachment, qualifying the code for this regime. Although the Ion Cyclotron Resonance Heating (ICRH) antenna limiters are 35 mm away from the separatrix, i.e. ten times the typical near-SOL power fall-off length λqnear = 3.8 mm, they receive power fluxes of several hundreds of kW exceeding the ones to the outer target in the detached phase and strongly contribute to the particle fueling. This is explained by a substantially larger far-SOL power fall-off length λqfar = 25 mm possibly caused by the small ELMs in the detached phase and the occurrence of a density shoulder.</abstract><cop>United States</cop><pub>IOP Publishing</pub><doi>10.1088/1361-6587/aba9ff</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-1080-4200</orcidid><orcidid>https://orcid.org/0000-0002-7824-3307</orcidid><orcidid>https://orcid.org/0000-0002-9809-7490</orcidid><orcidid>https://orcid.org/0000-0003-2953-536X</orcidid><orcidid>https://orcid.org/0000-0003-3827-0674</orcidid><orcidid>https://orcid.org/0000-0002-7386-1456</orcidid><orcidid>https://orcid.org/0000-0002-8647-7058</orcidid><orcidid>https://orcid.org/0000-0003-2103-3592</orcidid><orcidid>https://orcid.org/000000032953536X</orcidid><orcidid>https://orcid.org/0000000273861456</orcidid><orcidid>https://orcid.org/0000000210804200</orcidid><orcidid>https://orcid.org/0000000298097490</orcidid><orcidid>https://orcid.org/0000000321033592</orcidid><orcidid>https://orcid.org/0000000286477058</orcidid><orcidid>https://orcid.org/0000000338270674</orcidid><orcidid>https://orcid.org/0000000278243307</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0741-3335
ispartof Plasma physics and controlled fusion, 2020-10, Vol.62 (10), p.105016
issn 0741-3335
1361-6587
language eng
recordid cdi_osti_scitechconnect_1705062
source Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)
subjects 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASDEX Upgrade
detachment
EMC3-EIRENE
power exhaust
Tokamak
title Near- and far scrape-off layer transport studies in detached, small-ELM ASDEX Upgrade discharges by means of EMC3-EIRENE
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-21T19%3A51%3A24IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-iop_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Near-%20and%20far%20scrape-off%20layer%20transport%20studies%20in%20detached,%20small-ELM%20ASDEX%20Upgrade%20discharges%20by%20means%20of%20EMC3-EIRENE&rft.jtitle=Plasma%20physics%20and%20controlled%20fusion&rft.au=Lunt,%20T&rft.aucorp=Univ.%20of%20Wisconsin,%20Madison,%20WI%20(United%20States)&rft.date=2020-10-01&rft.volume=62&rft.issue=10&rft.spage=105016&rft.pages=105016-&rft.issn=0741-3335&rft.eissn=1361-6587&rft.coden=PLPHBZ&rft_id=info:doi/10.1088/1361-6587/aba9ff&rft_dat=%3Ciop_osti_%3Eppcfaba9ff%3C/iop_osti_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c349t-1853eed89deb089e6355a2f8dee9a1e06a6b084dcc2fef40c2c15de3b3aac9c73%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true