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neeraj kaira
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When the beam of electrons reflect back to the grid due to the repeller voltage in reflector plate ,how the grid decelerates the returning electrons ?? And how they release their energy to the grid ?
"The resonator potential also causes the resonant cavity to begin oscillating at its natural frequency when the tube is energized. These oscillations cause an electrostatic field across the grid gap of the cavity that changes direction at the frequency of the cavity. The changing electrostatic field affects the electrons in the beam as they pass through the grid gap. Some are accelerated and some are decelerated, depending upon the polarity of the electrostatic field as they pass through the gap. "how the grid decelerates the returning electrons ??
And how they release their energy to the grid ?
Your answers.neeraj kaira said:Ans please m waiting :(
You cannot demand rapid responses. If you get shirty / over demanding about it you will get none!neeraj kaira said:Ans please m waiting :(
Have you looked up any Klystron theory? It's subtle. Imo, it's not the KE of the electrons that get transformed, it is the fact that they bunch together - producing a varying density of charge - which corresponds to electrical potential variations (at RF) across the gap in the cavity. If you let the electron beam go on for ever, the electron bunches will spread out again, resulting in velocity modulation again - and so on and so on. There is an optimum drift length for the Klystron to amplify.neeraj kaira said:Thanku sir n last question please... How d K.E of electrons gets transformed to r.f energy?
Too subtle for people to get involved with at that level, perhaps? It's quite amazing when you think that the efficiency can be over 50%, iirc.neeraj kaira said:Ya i hv read multi cavity magnetron, klystron two cavity klystron reflex klystron but in my books it was not mentioned i even searchd on google but still not get that ...thatsy i asked..
Decelerating electrons release energy through a process called bremsstrahlung, or braking radiation. As the electrons come into contact with the reflector plate grid, they experience a force that slows them down. This deceleration causes them to emit electromagnetic radiation, releasing energy in the form of photons.
The dynamics of the reflector plate grid are influenced by several factors, including the strength and orientation of the electric field, the material and thickness of the reflector plates, and the speed and energy of the incoming electrons. These factors can affect the deceleration of the electrons and the resulting release of energy.
The reflector plate grid is designed to direct the released energy in a specific direction. By controlling the electric field and the placement of the reflector plates, the grid can guide the emitted photons towards a desired target or location.
The reflector plate grid serves two main purposes in the process of decelerating electrons and releasing energy. Firstly, it helps to focus and direct the released energy towards a specific target. Secondly, it helps to reduce the amount of energy lost during the deceleration process, increasing the efficiency of the system.
Yes, the reflector plate grid can be used in various applications that involve controlling the direction and release of energy. For example, it can be used in X-ray machines and particle accelerators to guide and focus the emitted energy. It can also be used in solar panels to reflect and redirect sunlight towards the photovoltaic cells, increasing their efficiency.