<HTML><HEAD><TITLE>АННОТАЦИИ
</TITLE></HEAD>
<BODY LINK=#000080 ALINK=#483D8B VLINK=#000000>
	<TABLE ALIGN=CENTER CELLSPACING=1 CELLPADDING=5 BORDER=10 BACKGROUND="../images/fon1.jpg" BGCOLOR=#D8BFD8 WIDTH=80% >
	<TR  ALIGN=CENTER CELLSPACING=0>
<TD COLSPAN=2><H2>PAST №5 2002</H2></TD>

<TR><TD  BGCOLOR=#f5f5f5 ALIGN=CENTER WIDTH=50% HEIGHT=15>
<A HREF="../CONTENTS/CONTENTS_2002_5.html#KEY5" TITLE="АНГЛИЙСКАЯ ВЕРСИЯ">CONTENTS</A></TD>

<TD BGCOLOR=#f5f5f5 ALIGN=CENTER WIDTH=50% HEIGHT=15>
<A HREF="../ARTICLE/VANT_2002_5/article_2002_5_92.pdf">ARTICLE</A></TD></TR>

<TR><TD COLSPAN=2><CENTER><H4><EM>
NONLINEAR THEORY OF SYMMETRIC SURFACE WAVES EXCITATION AT CYLINDRICAL WAVEGUIDE STRUCTURES ‘PLASMA - VACUUM - METAL’ BY ELECTRON BEAMS
</EM></H4></CENTER><P>
Yu.A. Akimov, N.A. Azarenkov, V.P. Olefir <br>
Department of Physics and Technology, Kharkiv National University, Kharkiv, Ukraine, <br>
E-mail: olefir@pht.univer.kharkov.ua; Fax: (057) 335 3977; Tel: (057) 335 0509
</P><BR><P>
This report is devoted to the non-linear theory of symmetrical potential surface waves (SWs) excitation by low-density tubular beam in cylindrical waveguide structure ‘plasma - vacuum - metal’. The system of non-linear equations describing the temporary dynamics of plasma - beam interaction is obtained. The influence of beam and waveguide structure parameters on saturation amplitude and SW excitation is investigated both analytically and numerically. The process of beam thermalization in SW field is considered.
</P><BR><P>
PACS: 52.25.-b; 52.35.-g

<p><br> 
</P></TD></TR>
</EM></H4></CENTER><P>
</P><BR><P>
</TABLE></BODY></HTML>