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Questions tagged [particle-accelerators]

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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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85 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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1answer
41 views

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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1answer
35 views

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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1answer
36 views

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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1answer
47 views

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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2answers
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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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1answer
51 views

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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1answer
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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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1answer
47 views

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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2answers
56 views

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
145 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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1answer
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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
39 views

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
41 views

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
41 views

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
59 views

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
25 views

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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1answer
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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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1answer
49 views

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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2answers
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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
57 views

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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1answer
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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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1answer
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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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2answers
251 views

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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0answers
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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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0answers
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Why do we need so large particle colliders? [duplicate]

In physics articles I often read that we need a particle collider of the size of the solar system for grand unification of forces. In an interview physicist Leonard Susskind said that days of ...
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2answers
96 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
131 views

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
50 views

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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How to make particle accelerator at home? [duplicate]

I need to make a particle accelerator for some research on particle acceleration explosion and some effect in human body when it's touch or affect to the skin or nervous system
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0answers
252 views

Spaceship engine - particle accelerator

Let's say you build a strong particle accelerator in space. One that can accelerate particles to near the speed of light. Can you use such an accelerator as a spaceship engine just by shooting out ...
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3answers
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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 ...
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2answers
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Why do scientists do particle collision experiments more than once?

Why are the particle collision experiments involving the same particles are done more than once. Shouldn't the collision of the same particles with the same velocity as the experiment before give out ...
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1answer
223 views

Difference between Betatron and Synchrotron?

from my current understanding of linear accelerators, both utilise changing magnetic fields to focus and confine accelerating electrons to a constant orbital radius. Then, what are the main ...
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Is it possible to build an atom smasher in your backyard?

Michio Kaku once said that He build an atom smasher in his garage as a science fair project in high school. He said he used 400 pounds of transformer steel and 22 miles of copper wire. But I would ...