Radio Frequency Acceleration in Particle Accelerators

[ZapperZ]

Yes I was genuinely interested in the topic in this thread that is why I wrote and I appreciate your input.

But it doesn’t explain why you keep going on and on and on and on about klystrons when it isn’t part of the topic.

Like I said, I’m done trying to shepherd the discussion back on topic.

Zz.

 

[sophiecentaur]

But was I wrong when saying that the klystron's RF output energy is the result of it's DC input energy minus the losses?

How could you have been wrong? That describes the basic function of any transmitter.
I have a strong feeling that you would rather try to justify your preconceptions than to learn more relevant stuff about the basic topic of the question. Forget where the RF power that feeds the accelerator comes from (i.e. the klystron) and just get a hold of the basics of the accelerator - which could use any source of RF Power if it could produce enough Power.

 

[mfb]

Yes I was genuinely interested in the topic in this thread that is why I wrote and I appreciate your input.

Start your own thread about klystrons then please.

 

[ZapperZ]

I'm out of this one till it gets back on-topic.

What I want to know is, what happened to @General Scientist , the OP of the thread? It seems that @artis has commandeered and taken over the topic. I still want to know if the OP have first understood the basic principles of a RF accelerating structure and mechanism, before jumping into the superconducting scenario.

Zz.

 

[mfb]

I'm out of this one till it gets back on-topic.

I removed three posts not about RF cavities that were made after my last post and will do this with future posts as well. The previous posts were a mixture of off-topic and on-topic discussion, splitting the thread would leave a mess in both threads.

 

[General Scientist]

I'm out of this one till it gets back on-topic.

What I want to know is, what happened to @General Scientist , the OP of the thread? It seems that @artis has commandeered and taken over the topic. I still want to know if the OP have first understood the basic principles of a RF accelerating structure and mechanism, before jumping into the superconducting scenario.

Zz.

Sorry, I have been off working on schoolwork. I am trying to learn about how the radiofrequency waves accelerate the cavity in the first place. On google most mentions referred to superconductivity. I was wondering whether it was only possible with superconducting cavitites.

 

[sophiecentaur]

how the radiofrequency waves accelerate the cavity

They don't. They accelerate the ions traveling through the cavity at the peak of the RF cycle. Each cavity they pass through gives them another kick. That's in simple terms of course. The phase of the a RF into each cavity has to be synchronised with the arrival of the bunch of ions so that they increase their speed at each cavity. You need to get all that stuff sorted out before you start to consider superconductivity in any of the components.

 

[General Scientist]

Sorry, that's what I meant. Do you know of any resources for understanding this? As far as I know, wikipedia doesn't have a page on rf cavities without superconductivity involved.

 

[mfb]

Normal conducting cavities are like superconducting cavities just with larger losses. The Wikipedia article doesn't even mention superconductors explicitly.

 

[sophiecentaur]

Sorry, that's what I meant. Do you know of any resources for understanding this? As far as I know, wikipedia doesn't have a page on rf cavities without superconductivity involved.

It is unlikely that any PF member can point you at a source that totally suits your (or anyone's) particular optimum level. The only way to find out anything like this is to do much more reading around. Search Engines tend to put the most popular or timely links first. If you want something basic then you have to look further down the list of hits. What you seem to be after is not just Popular Science level and that's where most of Google's leading hits are pitched. We all get this problem.

 

[ZapperZ]

https://www.classe.cornell.edu/~dugan/USPAS/

These are lecture notes from a US Particle Accelerator School, which was how many Accelerator scientists learned the material.

Zz.

 

[General Scientist]

It is unlikely that any PF member can point you at a source that totally suits your (or anyone's) particular optimum level. The only way to find out anything like this is to do much more reading around. Search Engines tend to put the most popular or timely links first. If you want something basic then you have to look further down the list of hits. What you seem to be after is not just Popular Science level and that's where most of Google's leading hits are pitched. We all get this problem.

Ok, thanks for all of your help.