DocumentCode
563280
Title
Study of the spatial distribution of the Langmuir wave amplitude in the turbulent plasma using electron beam shadowgraph technique
Author
Ando, Ritoku ; Fujii, Hisashi ; Wada, Satoshi ; Toyosugi, Norio ; Morishita, Hiromasa ; Okamoto, Naoki ; Masuzaki, Masaru ; Kamada, Keiichi
Author_Institution
Faculty of Science, Kanazawa University, 920-1192, JAPAN
Volume
1
fYear
2002
fDate
23-28 June 2002
Firstpage
381
Lastpage
384
Abstract
New diagnostic, “electron-beam-shadowgraph”, is examined for taking the spatial distribution of transient fields in a plasma. It is applied to the unmagnetized plasma, which is perturbed by an intense relativistic electron beam (IREB). Strong deflection is observed with duration of about 1 µs just after the IREB injection. The shadowgraph image is characterized by presence of aggregate holes. The size of the hole is changed with the plasma density, and corresponds to the 15 – 60 Debye lengths. Important agreements are observed between the experiment and the strong Langmuir turbulence theory.
Keywords
Current measurement; Density measurement; Phosphors; Plasmas;
fLanguage
English
Publisher
ieee
Conference_Titel
High-Power Particle Beams (BEAMS), 2002 14th International Conference on
Conference_Location
Albuquerque, NM, USA
ISSN
0094-243X
Print_ISBN
978-0-7354-0107-5
Type
conf
Filename
6219469
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