Number of the records: 1
Profile measurements of the electron temperature on the ASDEX Upgrade, COMPASS, and ISTTOK tokamak using Thomson scattering, triple, and ball-pen probes
- 1.
SYSNO ASEP 0459970 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Profile measurements of the electron temperature on the ASDEX Upgrade, COMPASS, and ISTTOK tokamak using Thomson scattering, triple, and ball-pen probes Author(s) Adámek, Jiří (UFP-V) RID, ORCID
Müller, H.W. (DE)
Silva, C. (PT)
Schrittwieser, R. (AT)
Ionita, C. (AT)
Mehlmann, F. (AT)
Costea, S. (AT)
Horáček, Jan (UFP-V) RID, ORCID
Kurzan, B. (DE)
Bílková, Petra (UFP-V) RID
Böhm, Petr (UFP-V) RID
Aftanas, Milan (UFP-V) RID
Vondráček, Petr (UFP-V) RID, ORCID
Stöckel, Jan (UFP-V) RID
Pánek, Radomír (UFP-V) RID
Fernandes, H. (PT)
Figueiredo, H. (PT)Article number 043510 Source Title Review of Scientific Instruments. - : AIP Publishing - ISSN 0034-6748
Roč. 87, č. 4 (2016)Number of pages 7 s. Publication form Print - P Language eng - English Country US - United States Keywords ball-pen probe (BPP) ; ASDEX Upgrade ; Langmuir probe (LP) ; ISTTOK (Instituto Superior Tecnico TOKamak) ; COMPASS (COMPact ASSembly), Subject RIV BL - Plasma and Gas Discharge Physics OECD category 2.11 Other engineering and technologies R&D Projects GA15-10723S GA ČR - Czech Science Foundation (CSF) GAP205/12/2327 GA ČR - Czech Science Foundation (CSF) GA14-35260S GA ČR - Czech Science Foundation (CSF) LM2011021 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFP-V - RVO:61389021 UT WOS 000375842500033 EID SCOPUS 84968861354 DOI 10.1063/1.4945797 Annotation The ball-pen probe (BPP) technique is used successfully to make profile measurements of the electron temperature on the ASDEX Upgrade (Axially Symmetric Divertor Experiment), COMPASS (COMPact ASSembly), and ISTTOK (Instituto Superior Tecnico TOKamak) tokamak. The electron temperature is provided by a combination of the BPP potential (Phi(BPP)) and the floating potential (V-fl) of the Langmuir probe (LP), which is compared with the Thomson scattering diagnostic on ASDEX Upgrade and COMPASS. Excellent agreement between the two diagnostics is obtained for circular and diverted plasmas and different heating mechanisms (Ohmic, NBI, ECRH) in deuterium discharges with the same formula T-e = (Phi(BPP) - V-fl)/2.2. The comparative measurements of the electron temperature using BPP/LP and triple probe (TP) techniques on the ISTTOK tokamak show good agreement of averaged values only inside the separatrix. It was also found that the TP provides the electron temperature with significantly higher standard deviation than BPP/LP. However, the resulting values of both techniques are well in the phase with the maximum of cross-correlation function being 0.8. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2017
Number of the records: 1