Parametric instabilities excited by ECR-resonance heating in a mirror machine
The process of phase randomization during electron cyclotron resonance heating has been studied intensely in different aspects with single particle approximations. Studies of parametric instabilities in plasmas introduce another system of interacting oscillators, namely plasma waves. The appearance...
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| Veröffentlicht in: | Вопросы атомной науки и техники |
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| Datum: | 2000 |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
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| Zitieren: | Parametric instabilities excited by ECR-resonance heating in a mirror machine / A.A. Ivanov, D. Meyer, K.S. Serebrennikov, K. Wiesemann, U. Wolters // Вопросы атомной науки и техники. — 2000. — № 1. — С. 253-257. — Бібліогр.: 17 назв. — англ. |
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Ivanov, A.A. Meyer, D. Serebrennikov, K.S. Wiesemann, K. Wolters, U. 2015-05-19T08:20:26Z 2015-05-19T08:20:26Z 2000 Parametric instabilities excited by ECR-resonance heating in a mirror machine / A.A. Ivanov, D. Meyer, K.S. Serebrennikov, K. Wiesemann, U. Wolters // Вопросы атомной науки и техники. — 2000. — № 1. — С. 253-257. — Бібліогр.: 17 назв. — англ. 1562-6016 https://nasplib.isofts.kiev.ua/handle/123456789/81661 533.9 The process of phase randomization during electron cyclotron resonance heating has been studied intensely in different aspects with single particle approximations. Studies of parametric instabilities in plasmas introduce another system of interacting oscillators, namely plasma waves. The appearance of collective motion implies a different mechanism of phase randomization with time scales close to the inverse growth rate of the modulational instability shorter than the electron bounce frequency in the mirror trap. Systematic experiments on ECR-heating show the presence of both a spectral broadening of the pump wave as well as low frequency noise close to the lower hybrid frequency, which roughly corresponds to the growth rate of the instability. The necessity of considering potential noise, the plasma eigenmodes respectively, possibly leads to a change of the existing model of phase randomization based on the single particle motion. The theoretical work was performed with the help of INTAS-Project Ref-No. 97-0094. The experimental work was carried out under the auspices of the Sonderforschungsbereich 191 and the Graduiertenkolleg Hochtemperatur-Plasmaphysik of the Deutsche Forschungsgemeinschaft. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Нелинейные процессы Parametric instabilities excited by ECR-resonance heating in a mirror machine Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Parametric instabilities excited by ECR-resonance heating in a mirror machine |
| spellingShingle |
Parametric instabilities excited by ECR-resonance heating in a mirror machine Ivanov, A.A. Meyer, D. Serebrennikov, K.S. Wiesemann, K. Wolters, U. Нелинейные процессы |
| title_short |
Parametric instabilities excited by ECR-resonance heating in a mirror machine |
| title_full |
Parametric instabilities excited by ECR-resonance heating in a mirror machine |
| title_fullStr |
Parametric instabilities excited by ECR-resonance heating in a mirror machine |
| title_full_unstemmed |
Parametric instabilities excited by ECR-resonance heating in a mirror machine |
| title_sort |
parametric instabilities excited by ecr-resonance heating in a mirror machine |
| author |
Ivanov, A.A. Meyer, D. Serebrennikov, K.S. Wiesemann, K. Wolters, U. |
| author_facet |
Ivanov, A.A. Meyer, D. Serebrennikov, K.S. Wiesemann, K. Wolters, U. |
| topic |
Нелинейные процессы |
| topic_facet |
Нелинейные процессы |
| publishDate |
2000 |
| language |
English |
| container_title |
Вопросы атомной науки и техники |
| publisher |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| format |
Article |
| description |
The process of phase randomization during electron cyclotron resonance heating has been studied intensely in different aspects with single particle approximations. Studies of parametric instabilities in plasmas introduce another system of interacting oscillators, namely plasma waves. The appearance of collective motion implies a different mechanism of phase randomization with time scales close to the inverse growth rate of the modulational instability shorter than the electron bounce frequency in the mirror trap. Systematic experiments on ECR-heating show the presence of both a spectral broadening of the pump wave as well as low frequency noise close to the lower hybrid frequency, which roughly corresponds to the growth rate of the instability. The necessity of considering potential noise, the plasma eigenmodes respectively, possibly leads to a change of the existing model of phase randomization based on the single particle motion.
|
| issn |
1562-6016 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/81661 |
| citation_txt |
Parametric instabilities excited by ECR-resonance heating in a mirror machine / A.A. Ivanov, D. Meyer, K.S. Serebrennikov, K. Wiesemann, U. Wolters // Вопросы атомной науки и техники. — 2000. — № 1. — С. 253-257. — Бібліогр.: 17 назв. — англ. |
| work_keys_str_mv |
AT ivanovaa parametricinstabilitiesexcitedbyecrresonanceheatinginamirrormachine AT meyerd parametricinstabilitiesexcitedbyecrresonanceheatinginamirrormachine AT serebrennikovks parametricinstabilitiesexcitedbyecrresonanceheatinginamirrormachine AT wiesemannk parametricinstabilitiesexcitedbyecrresonanceheatinginamirrormachine AT woltersu parametricinstabilitiesexcitedbyecrresonanceheatinginamirrormachine |
| first_indexed |
2025-12-07T19:55:01Z |
| last_indexed |
2025-12-07T19:55:01Z |
| _version_ |
1850880611202367488 |