Could you make a fluorescent lamp with krypton?

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In summary: This conversation is about the possibility of using krypton instead of neon or mercury in a fluorescent lamp. The person asking the question is curious if it is possible and what pressures and voltages would be needed. However, the other person points out that wavelength does matter, and explains the process of how mercury vapor is used in fluorescent lamps. They also mention that neon and mercury lamps are different from fluorescent lamps. The conversation then continues with the question of whether krypton lamps would have different properties and requirements compared to neon lamps. The second person then mentions that krypton discharge lamps are commercially available but are expensive. The conversation ends with a humorous comment about using krypton to kill Superman and a question about other uses for krypton. In summary, the
  • #1
00152
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Could you make a fluorescent lamp with krypton instead of neon or mercury? The wavelength doesn't really matter its just if its actually possible and if it is what pressures and voltages should be used.
 
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Wavelength absolutely matters. Mercury vapor is used because it produces a lot of UV light when excited by a current. The UV excites the powdered phosphors that coat the inside of the tube, which then glow with a spectrum that appears white to the eye. I don't think neon and krypton lamps do the same.
 
  • #3
i meant it doesn't really matter to me, but think neon and mercury lights work on the same principal you just add differend additives to shift the wavelenghts. But my question was: if you can make a neon lamp /which you can/ how differend would be the properties and requirements of krypton lamp
 
  • #4
Neon and mercury are not fluorescent lamps. They are discharge lamps. You can buy a krypton discharge lamp commercially. They are extremely expensive - as is krypton.
 
  • #5
Vanadium 50 said:
You can buy a krypton discharge lamp commercially. They are extremely expensive - as is krypton.

Hey, money is no object when you are trying to kill superman. ;)
..
 
  • #6
thanks...any other use for krypton?
 
  • #7
00152 said:
Could you make a fluorescent lamp with krypton instead of neon or mercury? The wavelength doesn't really matter its just if its actually possible and if it is what pressures and voltages should be used.

Aside from the difference between fluorescence and ionization (arc lamps ionize the atoms)-

http://amglo.com/krypton_arc_laser.html
 

1. Can krypton be used to make a fluorescent lamp?

Yes, krypton gas can be used to make a fluorescent lamp. It is one of the noble gases that can produce a visible light when an electric current is passed through it.

2. How does krypton produce light in a fluorescent lamp?

In a fluorescent lamp, krypton gas is excited by an electric current, causing its electrons to move from a lower energy level to a higher energy level. When these electrons return to their original energy level, they release photons of light, producing the glow of the fluorescent lamp.

3. What are the advantages of using krypton in a fluorescent lamp?

Krypton is a very efficient gas for producing light in a fluorescent lamp. It also has a longer lifespan compared to other noble gases, making it a more cost-effective option. Krypton also produces a bright, white light, making it suitable for various lighting applications.

4. Are there any drawbacks to using krypton in a fluorescent lamp?

The main drawback of using krypton in a fluorescent lamp is its cost. Krypton is a rare gas and is more expensive than other noble gases, making it a less economical choice. Additionally, krypton gas is not as readily available as other gases, making it more difficult to obtain.

5. Can krypton be mixed with other gases in a fluorescent lamp?

Yes, krypton can be mixed with other gases, such as argon and mercury vapor, to create a more efficient and cost-effective fluorescent lamp. The combination of these gases allows for a longer lifespan and a brighter, more consistent light output.

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