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Questions tagged [particle-accelerators]

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How did the Intersecting Storage Rings Actually Perform Tests

I am reading the book written in 1982 titled "Quarks, The Stuff of Matter" by Harald Fritzsch. In it he writes about the ISR at Cern, that slammed protons together and in some of those collisions, 2 ...
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How much current can be produced by Van de Graaff generators or Pelletrons?

The Van de Graaff generator is a source of high voltage at low current based on the transfer of static electricity, and its higher current successor the Pelletron could deliver more current by ...
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Radiation emitted by collision of two photons

Using Lamor's formula, can someone tell me how much radiation is emitted by a particle accelerator or by the collision of two photons? It requires a 4 momentum vector which I'm not very acquainted ...
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Particle accelerators and the amount of radiation they emit

Do particle accelerators emit a lot of radiation? If they do, can someone give me a rough estimate of how much? I'm also curious as to what kind of radiation they give off.
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What devices are used in a proton accelerator to separate the protons from their electrons and send the protons into the vacuum chamber? [duplicate]

I understand the general idea of how they accelerate the protons once they get them isolated in the chamber, but what's the device they use to isolate them to begin with even called?
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Plasma tubes and accelerators

to find a relation between acceleration produced by a plasma beam accelerator and the density of the plasma and length of the plasma tube. So what is the feasibility of this idea .
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Special Relativity for Synchrotron Radiation

For the last few hours, I tried to solve an exercise about synchrotron radiation but can't get to a solution. I think there are some concepts about special relativity that I didn't understand during ...
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2answers
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Could we use experimental evidence of micro black holes to prove the existence of additional spatial dimensions?

They are planning to create a new particle accelerator that can smash particles together at a much higher energy than the LHC. If in the process we observe the decay of a micro black hole, would that ...
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3's a crowd. Particle me but may i have this dance? [closed]

In a particle accelerator (built for 3 particles), could we smash them into a vacuum with only enough space for 2 particles?(electrons, protons, neutrons) what would be the result?
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Is it possible to use an accelerator/collider as a space engine? [closed]

I was just trying to get a discussion going about physics that we can already create. I did not realize that I would have to write a paper to ask a simple question. Is it possible to use an ...
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1answer
86 views

How far can a moving object embed itself

Let's say we have an electron moving at 10% the speed of light toward a 10 cm thick block of pure carbon. How do we calculate the distance that the electron travels into the carbon? Even though there ...
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Understanding Bremsstrahlung

I have this problem: The Stanford Linear Accelerator can accelerate electrons to 50 GeV What is the minimum wavelength of photon it can produce by Bremsstrahlung? Is this photon still called an ...
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Collider Luminosity basics

In a collider experiment, the Luminosity is defined as the proportionality factor between the interaction rate and the interaction cross section $dN/dt = L\times\sigma$, with units of $cm^{-2}s^{-1}$. ...
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Particle accelerator adapted to transport humans

Would it be possible to create a human transport system that uses the same principles as a particle accelerator? So if you had a vacuum tube that could fit a 2 m diameter metallic sphere/pod that ...
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2answers
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What is the strongest practical magnet?

I thought that magnets stronger than a few telsa tear apart. What is the strongest practical magnet that could be used for something like a particle accelerator? I am asking for a theoretical or ...
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Why not build a particle accelerator on ground level? What is the shallowest feasible depth to build one?

Assume you wanted to build a particle accelerator in a non-commerical/non-residential area. It costs more money the deeper you want to build it, therefore you want to build it as close to ground ...
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CNO fusion using particle accelerator?

The CNO cycle is a catalytic fusion reaction that produces energy in stars larger than the sun. It converts four protons into a helium-4 nucleus using a cycle of carbon, nitrogen and oxygen isotopes ...
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Super collider and black hole [closed]

I've read somewhere that to create a wormhole we would have to build a supercollider on the side of the solar system. If we were capable of doing this, would a supercollider of this scale create its ...
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Has the next particle accelerator been designed yet?

Has the next particle accelerator been designed yet? As I understand it is called the Future Circular Collider. Where are we at in the process of this?
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Why is it easier to observe B-meson oscillations than D-meson ones?

B-meson oscillations were observed several years ago by the CDF experiment B-oscillations, but D-meson could not be observed until very recently by the LHCb experiment. I'm wondering why is it more ...
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Invisible energy in hadronic calorimeters

Hadronic calorimeters are more difficult to be built than electromagnetic ones because the cascade containment is much larger for former. There is also some "invisible" energy that is not contained in ...
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Alternative way of bending electrons trajectory in synchrotron

I read that in synchrotron, the X-ray is produced whenever the electrons undergo acceleration, in particular at the bending magnet, the wiggler or undulator. Since these three devices all employ ...
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1answer
159 views

Does an electron accelerated in a linear accelerator lose any energy?

In a circular one, it would lose energy due to bremsstrahlung (synchrotron emission), but if it is accelerated from rest to ~GeV energies, does it lose any energy in this acceleration process?
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Are there processes other than fusion which can create very heavy elements? [closed]

Have there been hypothesized processes other than nuclear fusion which could possibly create heavy elements? For example these incredibly powerful particle accelerators we are continuously building ...
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1answer
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CP violation in the B-meson system

I was reading about historical measurements of CP violation and apparently, until the discovery of the top quark, one of the strongest CP violations was coming from the system of B-mesons. I read that ...
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1answer
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What is the reason of the low probability of a B-meson decaying into two muons

I found a Nature article where they measure the probability of a B-meson decaying into two charged muons $$B^0 -> \mu^++\mu^-$$ (actually this decay is measured in the article at the level of ~3$\...
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3answers
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Why electron/ion beams are not prefered over lasers as driver for inertial confinement fusion?

Most of hi-end ICF research facilities, and proposals for future powerplant or space-ship propulsion use lasers as driver. Problems with lasers intense lasers needed (e.g. NdYAG 3rd harmonic ...
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1answer
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Cyclotron-conservation of energy dilemma

In a cyclotron we increase the K.E. of a particle by allowing the E field to do work on it. But if I take the cyclotron and the particle as my system it's net energy only increases. How will the net ...
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1answer
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Radiofrequency acceleration of ions in a collider

Reading about the radiofrequency acceleration in circular colliders (https://home.cern/about/engineering/radiofrequency-cavities) made me wonder, this is how it is performed for particles going in one ...
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Identification of light nuclei in heavy nuclei collisions

At the LHC, apart from proton collisions, there are heavy ion collisions. Imagine that we have two beams of Fe nuclei. In the collision there would be lighter ions produced and I was wondering: How ...
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1answer
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Energy loss due to synchrotron radiation in linear and circular accelerators

Is the energy loss of an electron accelerated in a circular accelerator (with radius R and circumference $2\pi R $) the same as the energy loss in a linear accelerator over the same distance, if both ...
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1answer
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Maximum energy reached by a particle in an accelerator depend on magnet coverage?

Superconducting magnets in an accelerator usually do not cover 100% of the particle track. Particularly, I read that in the LEP, dipole magnets use to cover some 2/3 of the ring (27 km). Is the ...
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1answer
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Anti-nuclei production in particle accelerators

Related to Why is Anti-deuterium so important in the search for dark matter?. If the detection of anti-helium in the cosmic rays would be a signature of dark matter, is it possible to measure any ...
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How fast are cyclotrons?

I know this question is kind of vague, but I just want have a handle on how fast a average cyclotron can accelerate particles, and what kind of limits there are...
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If I put charged particles in the center of long hollow cylinder shaped electromagnet, in a vacuum, would it accelerate them?

If I put charged particles in the center of long hollow cylinder shaped electromagnet, in a vacuum, would it accelerate them? Is this how particle accelerators work? If so are there formulas I could ...
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Higgs measurements at the LHC

The Higgs boson has been measured by CMS and ATLAS at the LHC, but I was wondering wether they used the same decay channel to measure it or not (for me, in the latter case, the measurement would be ...
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LEP measurement of the top quark mass

Some time ago I read that the top quark mass was measured in the LEP collider, but as far as I had understood, that was an electron collider, how was the production of a top quark possible there?
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Characteristics of plasma accelerators

I've been reading about plasma accelerators but I do not understand the main differences between a plasma accelerator and a "normal" one. In the case of LHC for example, if we have free protons ...
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1answer
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Quadrupoles in an accelerator

The quadrupole magnets in a particle accelerator are just to center de beam or do they have any other application?
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Is it possible to detect muonium at the end of the experimental area of a particle accelerator by exciting its electron?

I've been wondering: if the muonium atom is very similar to the hydrogen atom, can I detect it (at the end of the experimental area in a particle accelerator) by exciting and then unexciting its ...
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How to measure the levels of muonium in the experimental area of a particle accelerator?

I want to know if there is any way of measuring the levels of muonium in the experimental area of a particle accelerator. So, it would start with a beam made up by anti-muons which would collide with ...
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Is it possible to create anti-muons in a particle accelerator?

I love particle and nuclear physics and I'm starting to search some things about it even though I'm only a high school student. So, my doubt is: is it possible to create antimuons (positive charged ...
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Frequency spectrum of bremsstrahlung

I have tried to find a method to derive the spectrum of the emitted radiation of accelerated relativistic charged particles but I've never found such a method in any books. Does anyone know a method ...
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2answers
101 views

Acceleration of a particle at the speed of light [duplicate]

Let's take a particle with the speed of light and throw it to a reflective surface with a 90 degree angle. We know that the speed of light is constant thus this particles speed is constant. But doesn'...
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1answer
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Why particles are going clockwise in most synchrotrons?

First I'm sorry for my poor choice of words, I'm not into physics so I'm lacking of appropriate words. I'm doing some personal research on synchrotrons, synchrotron radiation and all that stuff. It ...
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1answer
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What is the difference between the SiD and the ILD?

There are two detectors/experiments at the proposed international linear collider, but what is the difference? I am thinking that one is better at getting position and energy deposition, while the ...
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1answer
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What could be the advantages of tau particle colliders?

Since muon colliders are in the road map of future colliders, one could ask why not to use another superheavy particle to accelerate. Of course, some challenges to solve are: Lifetime of the tau ...
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Could Dark Matter be found by building a Hadron Collider that is the size of the earth?

I believe that through the current Collider created by CERN is finding out new data on a small scale. What if Dark matter could be found by an even bigger Collider like one that could be built around ...
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Do x-rays get emitted upon initial acceleration in this setup?

Based on the diagram and the paragraph before it, the x-rays are caused by decelerating the moving electrons and thus x-rays are emitted where the diagram clearly shows it (the red arrows pointing ...
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What's the difference between muons and electrons in experiment?

In the lecture note Track Reconstruction and Pattern Recongnition in High-Energy Physics written by Prof. Ivan Kisel, there is a figure (in page 7), which describes the different pieces of modern ...