2006-09-01 07:07:22 · 8 answers · asked by Red Sereph 1 in Science & Mathematics ➔ Physics
It might sound science-fiction-esque but electron guns really do exist in reality.
Electron guns normally consist of no more than a coil of wire. When an electric current passes through the coil, it heats up, and this causes electrons to "boil" off the coil. These electrons can then be directed onto other objects. For example, in the production of X-rays, I believe the electrons are directed onto a tungsten target.
Although the name might sound cool, they aren't "guns" in the conventional sort, and certainly can't be used as weapons. In fact, you'd probably find one inside your television!
2006-09-01 07:14:53 · answer #1 · answered by ? 3 · 0⤊ 0⤋
Here's a good site with diagrams. An electron gun is also known as a cathode ray tube.
http://en.wikipedia.org/wiki/Cathode_ray_tube
Cathode ray tube
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Cathode ray tube employing electromagnetic focus and deflection
Cutaway rendering of a color CRT
Electron guns
Electron beams
Focusing coils
Deflection coils
Anode connection
Mask for separating beams for red, green, and blue part of displayed image
Phosphor layer with red, green, and blue zones
Close-up of the phosphor-coated inner side of the screen
The cathode ray tube or CRT, invented by German physicist Karl Ferdinand Braun, is the display device that was long used in most computer displays, video monitors, televisions, radar displays and oscilloscopes. The CRT developed from Philo Farnsworth's work was used in all television sets until the late 20th century and the advent of plasma screens, LCD TVs, DLP, OLED displays, and other technologies. As a result of CRT technology, television continues to be referred to as "The Tube" well into the 21st century, even when referring to non-CRT sets.
A cathode ray tube technically refers to any electronic vacuum tube employing a focused beam of electrons. This article will concentrate on the families of cathode ray tubes used as displays for television, radar, oscilloscopes etc. Another important type of cathode ray tube is the video camera tube discussed in a separate article.
2006-09-01 07:29:44 · answer #2 · answered by clive 2 · 1⤊ 0⤋
Whoa...... sounds like my evening final evening. Im due for AF FEB 14th. Took a CVS variety try final evening and have been given a very very faint useful. besides the undeniable fact that it took approximately 7 min to look. I dont think of its the evaporation line reason it substitute into blue and that they say the evaporation line is oftentimes not in coloration. Its a shadow. So im going to take yet another try interior the morning.
2016-12-14 16:10:40 · answer #3 · answered by keef 4 · 0⤊ 0⤋
Yes, it's part of the CRT in your TV-- unless you have plasma or LCD.
If you have a color CRT TV, there are probably 3 electron guns.
2006-09-01 07:14:59 · answer #4 · answered by btsmith_y 3 · 1⤊ 0⤋
It may not be exactly what your looking for but it is referred to as a Tazer. It is essentially a battery pack which discharges the elelctrical charge wehn it hits a target.
2006-09-01 07:52:01 · answer #5 · answered by NW_iq_140 2 · 0⤊ 0⤋
It's part of cathod ray tube (CRT) in TV and oscilloscope which has vacuum tube and high voltage.
2006-09-01 16:22:15 · answer #6 · answered by dwarf 3 · 0⤊ 0⤋
dont you watch star trek damn fool
2006-09-01 09:59:13 · answer #7 · answered by hotsauce919rr 3 · 0⤊ 0⤋
IT EXSIST IN THE T.V
2006-09-01 07:18:36 · answer #8 · answered by SKY I 1 · 0⤊ 0⤋