is it possible to alter the color of cerenkov radiation?

[petrushka.googol]

cerenkov radiation is characteristically blue.

is it possible to red-shift the emitted frequencies through some method and change the characteristic blue color?

[John Cuthber]

Run away really quickly ?

Fluorescence?

Why do you want to know?

[Enthalpy]

Each shaken electron emits a very brief light pulse, and light is strong only in the direction and frequencies that add the brief pulses instead of spreading them, so I'd say "blue naturally", and any other colour hard to achieve.

Run away really quickly ?

Fun. But if water is thick enough, you can see the Cerenkov radiation and survive long enough to tell it. Even, enjoy a normal lifetime.

 

Astronauts and liquidators told about light flashes in their eyes. Not very clear whether the particles hit the retina directly or rather emitted Cerenkov light within the crystalline lens.

[John Cuthber]

 

Fun. But if water is thick enough, you can see the Cerenkov radiation and survive long enough to tell it. Even, enjoy a normal lifetime.

 

When I said "Run away really quickly ?" I was referring to Doppler shifting the blue light to make it red.

I did say "really quickly "

[Moontanman]

Isn't Cerenkov radiation due to the particles traveling faster than light in the medium they are passing through?

[imatfaal]

Isn't Cerenkov radiation due to the particles traveling faster than light in the medium they are passing through?

Yep - its always shown in pictures as a beautiful blue - I am not sure if this is to do with the medium (ie water) that it is normally observed in; the equation which determines the energy per length for any given frequency is a little beyong me. Most of the Cherenkov radiation is in the Ultra-violet.

 

 

You get it at nuclear reactors - it is also used to spot Neutrinos at SuperK. The neutrino eventually/hopefully bumps into something - this causes a shower of particles that are created in the collision many of which are travelling faster than the speed of light in water - the flashes of Cherenkov are spotted by photo-sensitive devices. They can even use the different patterns of light to distinguish the cascade of particles from elctron, mu and tau neutrinos.

[Enthalpy]

The light is blue and ultraviolet because the relativistic particle passes quickly by an atom. Or equivalently, an atom is smaller than a visible wavelength.

 

Then you can combine this first reason with the way pulses emitted by single atoms best sum together, and this as well favours short waves.

 

The transparency of water or other emitting medium limits the observed frequency.