Questions tagged [accelerator-physics]
is appropriate for questions dealing with the physics of beams in accelerators (synchrotrons, cyclotrons, linacs, betatrons and other types of accelerators); the ways in which beams are generated; the accelerating, bending and focusing equipment; and the intrinsic limits that arise in trying to manipulate beams. DO NOT USE THIS TAG for questions that concern the use of the particle beams once they arrive in the experimental hall.
222 questions
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Can an electromagnetic cyclotron be used made on a large scale or even used to create energy? [closed]
I have been looking into how electromagnetic cyclotrons work and what principals they show and I was wondering if it would be possible to use one to create energy or if it could be built on a large ...
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Feasibility of using Earth’s ambipolar electrostatic field for a new generation particle accelerator
There's an interesting article that Earth ionosphere between altitudes of $250~\text{km}$ and $768 \text{km}$ generates about $0.5\text{V}$ electric potential drop by the outward pressure of ...
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Does the velocity of an object moving towards a beta or alpha particle increase the impact force?
Please excuse my limited understanding of physics, but I need help clarifying an issue I have been struggling with. NASA explains that the Apollo crews reduced their exposure to Van Allen Belt ...
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Why use an oscillating electric field in cavities and not a constant one?
To accelerate charges in synchrotrons, the charges are sent through a standing electromagnetic wave where the electric field is parallel to the charge beam. Why isn't a constant electric field used? ...
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Plasma wakefield acceleration
I am currently trying to understand plasma wakefield accelerators and am struggling to identify the shape of the bubble created and the longitudinal force.
When a laser is shone in a plasma, the ...
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Does Faraday Cage also work in a changing electric field?
My question comes from a example in my textbook (see the photo). It illustrates a Linear Accelerator used to accelerate electronics. The voltage between the metal "tubes" will change ...
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Resources About Electron Gun and RF Gun
I am looking for some books or articles discussing from beginner to advanced about concept of electron gun and specifically RF gun used in particle accelerators. Like, from scratch. So, the ...
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What was it that specifically lead to 400MHz being chosen for the RF cavities in the LHC?
I know that you would have to choose a frequency that is a multiple of the revolution frequency of the LHC bunches, so that every time they arrive back at the cavity they are accelerated in the same ...
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Why is there no electric field inside the drift tubes of a LINAC?
Since the drift tubes are directly connected to the AC voltage supply, why don't they experience an electric field inside of them? Why does the electric field only act between the gaps?
Also, since ...
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What is the most energy efficient transfer mechanism for ion acceleration?
This question asks what is the most efficient way of accelerating ions, however, the answer focuses on the following:
For the sake of argument, I am going to assume you are asking about
which ...
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How does a cyclotron work with a single dee?
Every book I've looked up on the topic of a cyclotron explains it using a two-Dee model, and I understand it well. But Serway shows a picture of the first cyclotron with only one "Dee", how ...
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Highly relativistic electron scattering in thin plasma
I am curious about how extremely relativistic electrons (10s of GeVs to single TeVs) scatter when going through the interplanetary and interstellar medium, which is a thin plasma. I have read about ...
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Synchrotron radiation calculation details and expressing the flux
In chapter 14 of Jackson the energy radiated per unit frequency interval per unit solid angle is given:
Integration over the angles gives:
Finally, dividing by $\hbar \omega$ equation (14.91) gives ...
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What advantages might the Circular Electron-Positron Collider have over the Compact Linear Collider?
Despite Chen-Ning Yang's objections, the Circular Electron Positron Collider (CEPC) project is progressing. The CEPC research team officially released its Technical Design Report (TDR) for the ...
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Bending angle equation of particle in a magnetic and electric field
Using the equations for an Electric field and Magnetic field between two plates:
$$
E = \frac Vr
$$
$$
B=\frac{2I}{2\pi r}\cdot\mu_0
$$
where $V$ is plate voltage, $r$ is plate separation, $I$ is ...
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