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Runaway electron diagnostics for the COMPASS tokamak using EC emission

التفاصيل البيبلوغرافية
العنوان: Runaway electron diagnostics for the COMPASS tokamak using EC emission
المؤلفون: Farnik Michal, Urban Jakub, Zajac Jaromir, Bogar Ondrej, Ficker Ondrej, Macusova Eva, Mlynar Jan, Cerovsky Jaroslav, Varavin Mikita, Weinzettl Vladimir, Hron Martin
المصدر: EPJ Web of Conferences, Vol 203, p 03006 (2019)
بيانات النشر: EDP Sciences
سنة النشر: 2019
المجموعة: Directory of Open Access Journals: DOAJ Articles
مصطلحات موضوعية: Physics, QC1-999
الوصف: An electron cyclotron emission (ECE) diagnostic of suprathermal electrons was utilised for runaway electron (RE) experiments purposes in the COMPASS tokamak. Our vertical ECE (V-ECE) system consists of a 16-channel heterodyne radiometer and an E-band horn antenna with a 76.5-88 GHz frequency range front-end. Simulations used for the design of the diagnostic showed a possibility of detecting the emission of low-energy (50-140 keV) runaway electrons. We realized measurements with both extraordinary (X-) and ordinary (O-) mode linear polarizations. The amplitudes of the X-mode and O-mode signals are similar, which can be explained by depolarised reflected radiation. V-ECE measurements in low-density flattop discharges and in discharges with massive gas injections of high-Z elements show correlations with other RE diagnostics. Our results are in the agreement with the principles of the primary runaway generation mechanisms.
نوع الوثيقة: article in journal/newspaper
اللغة: English
تدمد: 2100-014X
Relation: https://www.epj-conferences.org/articles/epjconf/pdf/2019/08/epjconf_ec2018_03006.pdf; https://doaj.org/toc/2100-014X; https://doaj.org/article/a954c092004c46f9aaefc1447a2218da
DOI: 10.1051/epjconf/201920303006
الاتاحة: https://doi.org/10.1051/epjconf/201920303006
https://doaj.org/article/a954c092004c46f9aaefc1447a2218da
رقم الانضمام: edsbas.F3C21CCB
قاعدة البيانات: BASE
الوصف
تدمد:2100014X
DOI:10.1051/epjconf/201920303006