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Filament Cup : A small target for electron bombardment on the anode is essential. (image geometrical un-sharpness). Unless steps are taken, the random thermally induced velocities and mutual repulsion of the electrons leaving the cathode will cause a broad beam to strike the anode. Therefore the filament is surrounded by a metal cup, kept at the same potential as the filament. The cup provides an electric field which causes a focusing action on the electrons to produce the desired small target area on the anode
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What is the coarse focusing knob on a microscope for?
Focusing, its called a focusing knob.
Why isn't Regan Smith racing in Busch anymore?
== == He runs it two, but he has the Cup Deal with DEI to drive full time in 2008 so yeah he's focusing on Cup and not so much on Busch, or shall i say Nationwide Series.
What is used for focusing?
used for final focusing
When was Focusing in with Blur created?
Focusing in with Blur was created in 1991.
What is better for focusing sunlight?
A convex lens is better for focusing sunlight
When was The Focusing Blur created?
The Focusing Blur was created on 2004-02-16.
Which adjustment screws will be used when focusing the HPO?
The Fine Adjustment knob is used for focusing HPO.The Coarse Adjustment Knob is used for focusing LPO.
Which of adjustment screw will be used when focusing the HPO?
The Fine Adjustment knob is used for focusing HPO.The Coarse Adjustment Knob is used for focusing LPO.
Studying anatomy by focusing on one region of the body and focusing on everything in that?
Regional Anatomy
What happened to nick symmonds blog?
hes not focusing on blogging but rather focusing on berlin.
What can focusing on problem symptoms lead to?
Focusing on a problem's symptoms can lead to analyzing the situation.
What can focusing on a problems symptoms lead to?
Focusing on a problem's symptoms can lead to analyzing the situation.
