Posted: Wed May 18, 2011 7:19 pm
I think you have already seen wikipedia.chrismb wrote:What do you think beam emittance is?
As I understand the main source of your education. What do you wait for?
My explanations?
a discussion forum for Polywell fusion
https://talk-polywell.org/bb/
I think you have already seen wikipedia.chrismb wrote:What do you think beam emittance is?
I missed, sorry. What will happen? Technical term? Or growth of emittance?chrismb wrote:Why is there a technical term for something that doesn't happen?
Yes. I wait for you to explain beam emittance to us.Joseph Chikva wrote:What do you wait for?
My explanations?
Why? Are you not satisfied with wiki?chrismb wrote:Yes. I wait for you to explain beam emittance to us.Joseph Chikva wrote:What do you wait for?
My explanations?
I am describing very simply. The mechanism interfering emittance growth is Bremsstrahlung.chrismb wrote:Beause we're waiting to see how you can describe beam emittance growth without also describing what will happen in your invention.
Electron cooling has little to do with beam emittance, excepting, perhaps, that it is a charge-neutral process so reduces space charge. Electron cooling reduces ion velocity-space diffusion by running electrons at the same velocity (and the same direction) as ions (which is not at all as you described in your 'invention'.)Joseph Chikva wrote:I am describing very simply. The mechanism interfering emittance growth is Bremsstrahlung.chrismb wrote:Beause we're waiting to see how you can describe beam emittance growth without also describing what will happen in your invention.
Here is a little about inventor of electronic cooling http://en.wikipedia.org/wiki/Gersh_Budker in which particles pass their radial momentums to electrons and they then radiate that thermal energy
As you can see this is your lovely wiki.
Also his paper "Relativistic Stabilised Electron Beam". As I know the last was not translated into English.
Charge neutralizing has not any relation to cooling.chrismb wrote:Electron cooling has little to do with beam emittance, excepting, perhaps, that it is a charge-neutral process so reduces space charge. Electron cooling reduces ion velocity-space diffusion by running electrons at the same velocity (and the same direction) as ions (which is not at all as you described in your 'invention'.)Joseph Chikva wrote:I am describing very simply. The mechanism interfering emittance growth is Bremsstrahlung.chrismb wrote:Beause we're waiting to see how you can describe beam emittance growth without also describing what will happen in your invention.
Here is a little about inventor of electronic cooling http://en.wikipedia.org/wiki/Gersh_Budker in which particles pass their radial momentums to electrons and they then radiate that thermal energy
As you can see this is your lovely wiki.
Also his paper "Relativistic Stabilised Electron Beam". As I know the last was not translated into English.
Please describe beam emittance, in your own words.
Describe that yourself and then read yourself.chrismb wrote:Please describe beam emittance, in your own words.
Thanks, but your opinion is less interesting for me by the reason of your lack of your knowledge.chrismb wrote:I have described it myself, as you have suggested.
I have read it myself, as you suggested. It seems to say your invention won't work.
Mr. Half-educated, the repulsion forces of space charge are weaken as square of relativistic (Lorenz) factor. So, if you have electron beam with factor equal to 10 corresponding to KE of about 5 MeV, repulsive forces in our frame of reference will be weaken 100 fold.chrismb wrote:Beam emittance is where streams of mono-energetic ions tend to diverge because there is no magnetic effect between ions moving at the same speed so their space-charge causes electrostatic repulsion within the beam.
Do you have a link for an article on that? I had never heard that one before.Joseph Chikva wrote:Mr. Half-educated, the repulsion forces of space charge are weaken as square of relativistic (Lorenz) factor. So, if you have electron beam with factor equal to 10 that correspondents to KE of about 5 MeV, repulsive forces in our frame of reference will be weaken 100 fold.chrismb wrote:Beam emittance is where streams of mono-energetic ions tend to diverge because there is no magnetic effect between ions moving at the same speed so their space-charge causes electrostatic repulsion within the beam.
And even a small amount of ions (here I do not talk aboution beam - only cloud) can dramatically compress that beam in radial direction.