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Design Starting For Matter-Antimatter Collider
couch_warrior writes "The Register is carrying a story on the early design efforts for the next generation of high-energy particle accelerators. They will be linear, and will collide matter and antimatter in the form of electrons and positrons. The obvious question will be: once we have a matter-antimatter reactor, how long till we have warp drive, and will the Vulcans show up for a sneak-peak?"
Antimatter is like matter, but with an opposite electrical charge.
The obvious question will be: once we have a matter-antimatter reactor, how long till we have warp drive, and will the Vulcans show up for a sneak-peak?"
Maybe in a Star Trek convention...
Keptin, I'm giving you all she's got!
The obvious question will be: once we have a matter-antimatter reactor, how long till we have warp drive, and will the Vulcans show up for a sneak-peak?"
Actually, I think the next question would be: "Now how can get some antimatter?"
It's my understanding that we can only manufacture ridiculously minute quantities of the stuff, and that may take more energy to make than we'll get out of it anyways.
Unfortunately, a matter/anti matter reactor is not enough to create an Alcubierre drive.. We still need some Exotic Matter.. And a lot of it..
So .. go back to sleep.. nothing to see here..
--Ivan
There's a matter-antimatter collider in production since the 1990's. It's called the Tevatron, it collides protons with antiprotons and it is in Illinois.
There was a Particle-AntiParticle accelerator already running for years http://en.wikipedia.org/wiki/Large_Electron-Positron_Collider
and there currently is another one http://en.wikipedia.org/wiki/Tevatron and there were some more I'm to lazy to look up.
The only new thing is the planned Center-of-Mass-Energy (http://en.wikipedia.org/wiki/Mass_in_special_relativity) of hopefully around 1 Tev (http://en.wikipedia.org/wiki/TeV) which forces the design to a linear collider (http://en.wikipedia.org/wiki/Linear_particle_accelerator) due to Bremsstrahlung (http://en.wikipedia.org/wiki/Bremsstrahlung).
So if you want a Warp drive or Vulcans you will have to continue sitting in front of your TV-Set but hey I like this much more then having to
cope with security personal standing on every corner in my city.
The +/- designs are last gen ^ X, not next gen. If The Register followed the history details closely, a good number of computer startups came from a club that met at SLAC, the Stanford Linear Accelerator. Yes, the design is that old and older.
As for the 'obvious question', if the supposedly obligatory SF reference comes out sounding like so much shite, leave it out, OK?
Between these two details, TFA could have predated /. by a decade.
"I may be synthetic, but I'm not stupid." -- Bishop 341-B
They should be OK as long as they don't use any of those damned Klingon Crystals. Otherwise they'll need access to the nuclear wessels.
There were already some electron-positron colliders, the LEP for example. I think the new thing about this collider is that it is a linear and for high energy. In an electron/positron synchrotron the particles are flying in circles, permanently loosing energy to synchrotron radiation. This is why a linear design will allow to achieve higher energies.
PET scanning uses radioisotope Beta decay to Neutron, Neutrino and Positron, Positron -> Electron annihilation -> Gamma -> detection.
This is using an existing source of positrons, beta radiation.
http://en.wikipedia.org/wiki/Positron_emission
The non-trivial stuff is making anti-atoms. That's quite difficult.
http://en.wikipedia.org/wiki/Antimatter#Artificial_production
Contrary to popular belief, life is not a bitch. It is far far worse.
Here's an idea, I know it gonna cost probably a trillion anyway, so instead of makeing a 10km ring somewhere here on earth, build a lets say 1 or 2 km space station/ring somewhere out in gostationary orbit. You don't need all of the cooling hardware you would normally, and you'll shut up most of the people that are gonna bitch about it blowing up a killing us all. Also your better off, because your allready pretty nuch in a vacume so that another problem that these things have when they are on earth. I don't know, maybe I'm wrong, but I think its a good idea.
at this hour in this hemisphere (Western)
Peak: top of a mountain.
And the daily Slashdot malapropism award goes to samzenpus.
... is what it used to be called. CERN in Switzerland had it. http://en.wikipedia.org/wiki/Lep
There are always many different designs being investigated, even up to fairly advanced stages. This doesn't mean that any of those is going to be build. You have to realize that in order to make decisions that cost several M$, you have to know what you can do and how to achieve it beforehand, in great detail.
CLIC is definitely one of the bigger things currently in investigation. The ILC (lepton machine) is another one. There's also big interest in Neutrino Factories, Superbeams, Betabeams, etc.
What we want to build (maybe in 2020) depends crucially on what the LHC finds and on new results in the neutrino sector (measurement of the 13-angle).
It is more likely that a representative from the Intergalactic Patent office will show up and attempt to begin negotiations for royalty premiums.
Participatory Governance : The only feasible option for a real democracy, where everyone really does have a say.
It's about wakefields and the possibility of reducing their external effects by detuning. What makes this interesting is that the proposals for next-gen small accelerators are about deliberately using wakefields to achieve very high acceleration over very short ranges, effectively getting particles to surf on laser-induced wakefields.
The guy with the proposal also manages to give a spectacularly bad example of detuning - bells, anyone? - which fully complies with the Bad Analogy requirements, i.e. detuning is nothing at all like having lots of bells, and the analogy doesn't provide any insight at all into what is happening. Detuning is more like resting a finger gently on a vibrating guitar string.
All this article really tells me is that wakefields are very hot in particle accelerator research, and efforts are focussing on reducing their unwanted effects as well as extracting more energy from them.
From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
maybe by Prostetnic Vogon Jeltz himself now back to the poetry
Annihilation is the only outcome possible !! The Universe will cease to be. Just like it used to !! But if had before ceased to exist, then it must have existed always, or it could not have ceased to exist !! Puny humans !!
Okay now correct me if I'm wrong on this, but if I remember correctly, Positrons and Electrons are in the group of Leptons. More generally they are a type of fermion. I understand that fermions make up Baryons and so forth, but aren't we getting ahead of ourselves when we call this reactor a "matter-anitmatter" reactor? Wouldn't it be more fitting to call it a "particle-antiparticle" reactor?
The western hemisphere is arbitrary.
As preparation for the PET scan you were given an injection with a radioactive tracer which decays via positron emission. The PET scanner doesn't generate any radiation, it simply detects the 511 keV gamma rays produced when the positrons in the tracer annihilate with an electron.
Damped detuning is precisely absorbing energy in such a way that the spectrum broadens, the guitar string analogy. "Damped" = removing energy, "detuning" = broadening spectrum.
This is like a system of resonators all with slightly different peak frequencies which cannot co-excite one another, which is neither damping nor detuning. If you want to see an everyday damped detuning system, look under your car at the engine mounts. Not only do they absorb energy (the rubber is deliberately made with energy-absorbing additives) but as they are compressed their stiffness varies, thus changing the resonant frequency of the engine assembly during the vibration. Does that look like a ring of bells?
From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
Here at Fermilab we have been conduction matter/anti-matter collisions for years. http://fnal.gov/ No Vulcans yet, but some of our scientists can sing Klingon Opera.
Actually, the technical paper was published a few months later, in one of the most respected scientific journals in the world, Physical Review Letters. Please see "Relativistic Positron Creation Using Ultraintense Short Pulse Lasers" H. Chen, et. al., Phys. Rev. Lett. 102 , 105001(issue of 13 March 2009) In addition to this, these results were also reproduced at the LLE laser facility at the University of Rochester, where an order of magnitude more positrons were observed, over what was reported in the original new release.
April 5th 2063 Duh!
Slashdot's rate-of-post filter: Preventing you from posting too many great ideas at once.
I wonder if it matters because if it does not mnatter then it antimatters.
If enithin kan gow rong it whil. (Murfey)
And then we can all flashforward 2 Min 17 Seconds.
...to do with Li2 (the actual gaseous form of two lithium atoms covalently bonded). Star Trek's "Dilithium" is a (fictional) trans-uranium element with atomic number 119, and is supposedly a heavy metal with a crystalline structure. I have no clue where its fictional name actually originated from, but it's not directly related to Lithium, element #3 at all. The root word "Dilith" came from something else in Roddenbury's warped imagination, and doesn't mean "two lithiums", more like "two stones" or perhaps something like that.
Just discussing this stuff here is making me feel all icky like a stupid junior high kid. Blech! I thought I outgrew all this trek crap years ago. Now excuse me while I go and find some brain-bleach to wash out my cranium.
But quotes for the "free market cost of antimatter" are based on the fantastic costs of generating it in an accelerator.
Why pay? - antimatter is available for free! One cosmic ray passes through every cubic centimetre of your body every second that you stand on the Earth's surface and about half are anti-muons. In addition, since they are available everywhere on Earth (and other planets with atmospheres) storage is not a problem - wherever you go there will still be anti-matter there for you!
They probably started testing the technology: http://www.russiatoday.com/Top_News/2009-10-08/ufo-halo-sky-baffles.html
CERN's LHC is notable for being the first collider that doesn't collide antiparticles. Colliding antiparticles is the standard design.
You might remember that the tunnel LHC is using was previously occupied by the LEP collider, which stands for "large electron/positron". The Tevatron also collides protons and antiprotons.
Since protons and antiprotons curve in opposite directions in a magnetic field, it's very convenient to build one set of magnets and use them for `two beams of particles in going in opposite directions.
LHC, as the first proton/proton collider, has a much more complicated magnet design because it needs to generate two different magnetic fields. But the number of particles it needs is so high that it was impractical (and even more expensive) to generate that many antiprotons.
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