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<H1><A href="http://www.sciencedaily.com/images/2009/09/090916153131-large.jpg"
rel=thumbnail><IMG height=227 alt=""
src="http://www.sciencedaily.com/images/2009/09/090916153131.jpg" width=300
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<DIV id=caption
style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 10px; PADDING-TOP: 5px"><EM><FONT
size=3>Researchers funded by the Air Force Office of Scientific Research (AFOSR)
at the University of Michigan invented a new type of magnetron that may be used
to defeat enemy electronics. (Credit: Photo courtesy of the University of
Michigan and the Air Force Research Laboratory)</FONT></EM></DIV></H1>
<H1>New Magnetron* developed</H1>
<P><FONT face=Verdana>Science Daily reports that researchers funded by the Air
Force Office of Scientific Research (AFOSR) at the University of Michigan have
developed a new type of magnetron. A magnetron is a type of vacuum tube used as
the frequency source in high-power microwave systems.</FONT></P>
<P><FONT face=Verdana>According to Dr. Ron Gilgenbach, an AFOSR-sponsored
researcher at the University of Michigan, a new class of magnetrons was invented
that holds the potential for more compact Department of Defense microwave
sources with faster start-up, as well as higher peak and average
power.</FONT></P>
<P><FONT face=Verdana>Read the full Science Daily report at<BR></FONT><A
href="http://www.sciencedaily.com/releases/2009/09/090916153131.htm"
target=_blank><FONT
face=Verdana>http://www.sciencedaily.com/releases/2009/09/<BR>090916153131.htm</FONT></A></P>
<P><FONT face=Verdana>Air Force Office of Scientific Research
(AFOSR)<BR></FONT><A href="http://www.wpafb.af.mil/AFRL/afosr/"><FONT
face=Verdana>http://www.wpafb.af.mil/AFRL/afosr/</FONT></A></P>
<P><FONT face=Verdana> </FONT></P>
<P><FONT face=Verdana>Fonte: <STRONG>George Boorer,
ZL3PN.</STRONG></FONT></P>
<P><FONT face=Verdana><STRONG>Magnetron -</STRONG>Tipo de <SPAN lang=PT>válvula
eletrônica responsável pela geração de elevadíssimos níveis
de energia em microondas.</P></SPAN></FONT></BODY></HTML>