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Physicists create tabletop antimatter 'gun'
Phys.Org ^ | 06-25-2013 | Bob Yirka

Posted on 06/25/2013 10:10:32 AM PDT by Red Badger

(Phys.org) —An international team of physicists working at the University of Michigan has succeeded in building a tabletop antimatter "gun" capable of spewing short bursts of positrons. In their paper published in the journal Physical Review Letters, the team describes how they created the gun, what it's capable of doing, and to what use it may be put.

Positrons are anti-particles, the opposite twin of electrons. Besides being created in physics labs, they are also found in jets emitted by black holes and pulsars. To date, the creation of positrons for study has involved very big and expensive machines. One of those is the particle accelerator at CERN. Another is a device built by scientists at Lawrence Livermore National Laboratory that created positrons by firing a hugely powerful laser at a tiny disc made of gold. Other recent work by researchers at the University of Texas has involved building a desktop sized accelerator. This new effort builds on that work—this team has built a device not more than a meter long that is capable of generating short bursts of both electrons and positrons, very similar they report, to what is emitted by black holes and pulsars.

To achieve this feat, the team fired a petawatt laser at a sample of inert helium gas. Doing so caused the creation of a stream of electrons moving at very high speed. Those electrons were directed at a very thin sheet of metal foil which caused them to smash into individual metal atoms. Those collisions resulted in a stream of electron and positron emissions—the two were then separated using magnets.

The researchers report that each blast of their gun lasts just 30 femtoseconds, but each firing results in the production of quadrillions of positrons—a density level comparable to those produced at CERN. The researchers suggest their device could be used to mimic the jet streams from black holes and/or pulsars, hopefully offering some answers to questions such as, what sort of proportion of particles are present in such streams, how much energy is in them, and in what ways do the particles in them interact with the environment into which they are spewed.

More information: Table-Top Laser-Based Source of Femtosecond, Collimated, Ultrarelativistic Positron Beams, Phys. Rev. Lett. 110, 255002 (2013). prl.aps.org/abstract/PRL/v110/i25/e255002 . On Arxiv: arxiv.org/abs/1304.5379

Abstract The generation of ultrarelativistic positron beams with short duration (τe+≃30  fs), small divergence (θe+≃3  mrad), and high density (ne+≃1014–1015  cm-3) from a fully optical setup is reported. The detected positron beam propagates with a high-density electron beam and γ rays of similar spectral shape and peak energy, thus closely resembling the structure of an astrophysical leptonic jet. It is envisaged that this experimental evidence, besides the intrinsic relevance to laser-driven particle acceleration, may open the pathway for the small-scale study of astrophysical leptonic jets in the laboratory.

via Synopsis


TOPICS: Science
KEYWORDS: antimatter; antimattergun; generalforum; gun; positron; positrons; scifi
Well, it better not have more than seven positrons in its magazine..................
1 posted on 06/25/2013 10:10:32 AM PDT by Red Badger
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To: marktwain

Ping!............


2 posted on 06/25/2013 10:10:50 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Red Badger

Does it matter?


3 posted on 06/25/2013 10:12:03 AM PDT by Larry Lucido
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To: Red Badger

a. Top-view of the experimental setup. Plastic and Tefon shielding was inserted to reduce the noise due to low energy divergent particles and x-rays. b. Typical positron signal as recorded by the Image Plate. The region labelled with gamma noise is predominantly exposed by the gamma-rays escaping the solid target. c. Typical signal of the electron beam as recorded on the LANEX screen, without a solid target and d. extracted spectrum. Credit: arxiv.org/abs/1304.5379

4 posted on 06/25/2013 10:12:10 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Red Badger

Mr. Sulu, set the phasers on “stun”....


5 posted on 06/25/2013 10:12:26 AM PDT by Nachum (The Obama "List" at www.nachumlist.com)
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To: Red Badger

Can it be printed with a 3-D printer?


6 posted on 06/25/2013 10:13:00 AM PDT by Jim Robinson (Resistance to tyrants is obedience to God!!)
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To: Red Badger

Basically that means that anyone who happens to have a petawatt laser sitting around could make one of these things. When it gets to the point where we can make them with a 3D printer we got trouble. BTT


7 posted on 06/25/2013 10:13:18 AM PDT by Billthedrill
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To: Red Badger
may open the pathway for the small-scale study of astrophysical leptonic jets in the laboratory.

Or annihilate your enemies.

8 posted on 06/25/2013 10:13:27 AM PDT by DManA
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To: Jim Robinson

18 seconds. Dang it, Jim.


9 posted on 06/25/2013 10:13:52 AM PDT by Billthedrill
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To: Red Badger

their device could be used to mimic the jet streams from black holes and/or pulsars


I am under the impression that one would not want to stand too close to either of those things.

Could this be the very beginnings of a viable superweapon capable of destroying matter at the planetary level.


10 posted on 06/25/2013 10:14:43 AM PDT by cuban leaf (Were doomed! Details at eleven.)
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To: Red Badger
Yeah, but can they make on of these??

Illudium Q-36 Explosive Space Modulator

11 posted on 06/25/2013 10:15:42 AM PDT by Kartographer ("We mutually pledge to each other our lives, our fortunes and our sacred honor.")
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To: Larry Lucido

Two hydrogen atoms were talking.
One said, “I’ve lost my electron.”
The other replied, “Are you sure?”
The first one said, “I’m positive.”............


12 posted on 06/25/2013 10:16:00 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Red Badger
To achieve this feat, the team fired a petawatt laser at a sample of inert helium gas.

Wow, just imagine what might have happened if the team fired the laser at a sample of "Explosive" helium gas!

13 posted on 06/25/2013 10:16:11 AM PDT by Errant
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To: Jim Robinson

I certainly hope so, Ollie................


14 posted on 06/25/2013 10:16:36 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Kartographer

Where’s the Ka-Boom? There was supposed to be an Earth-shattering Ka-Boom.


15 posted on 06/25/2013 10:16:43 AM PDT by dfwgator
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To: Errant

You mean like the stuff we sold the Nazis??


16 posted on 06/25/2013 10:17:22 AM PDT by Hegewisch Dupa
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To: Errant

One shudders to think............


17 posted on 06/25/2013 10:17:36 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Red Badger

I’ll take one in 40 S&W ...


18 posted on 06/25/2013 10:17:51 AM PDT by dartuser
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To: Dark Wing

ping


19 posted on 06/25/2013 10:18:43 AM PDT by Thud
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To: cuban leaf

No, but it’s gonna make a hella cool pulse cannon!


20 posted on 06/25/2013 10:19:20 AM PDT by Axenolith (Government blows, and that which governs least, blows least...)
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To: Hegewisch Dupa

No, that was red mercury - or was it the Russians?


21 posted on 06/25/2013 10:19:23 AM PDT by Errant
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To: DManA
Or annihilate your enemies.

Only usable in space since positrons would hit and annihilate atmospheric particles rather than the target. Someone is sure to look at scaling this up.

22 posted on 06/25/2013 10:19:36 AM PDT by 6ppc (It's torch and pitchfork time)
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To: Billthedrill

A story I read a couple of decades ago in Omni:

100 years in the future, we live in a world with a computer network very similar to what we call the internet. Some guys are mining the astroid belt, which have been determined to be the remains of a blown up planet.

They come across an artificially made device the size of a football. They bring it to the head office and notice it is some sort of electronic device with computing capabilities so they plug it into their computer, effectively plugging it’s contents into the world’s computers. It dumps its data on their computer screen.

It is instructions on how to blow up a planet using simple ingredients and tools found around the house.

The end...


23 posted on 06/25/2013 10:21:09 AM PDT by cuban leaf (Were doomed! Details at eleven.)
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To: dfwgator
"Where’s the Ka-Boom? There was supposed to be an Earth-shattering Ka-Boom."

Sorry due to the sequester all Earth shattering KaBooms have be cancled. You'll just have to be satisfied with a silent disintegration, besides that's how thwe Earth ends not with a bang but with a whimper.

24 posted on 06/25/2013 10:22:37 AM PDT by Kartographer ("We mutually pledge to each other our lives, our fortunes and our sacred honor.")
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To: Red Badger

Obama needs to get one to al qaeda ASAP, it’s the only way to ensure world peace!


25 posted on 06/25/2013 10:25:24 AM PDT by MrBambaLaMamba (Obama lies, smokes, blasphemes, eats pork, reads your mail, eavesdrops and drinks during Ramadan)
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To: Red Badger

Well if they can just figure how to bottle it, work on that duration some, we might have a product we could export to the Chinese for their Mars shuttle!


26 posted on 06/25/2013 10:25:48 AM PDT by Errant
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To: Red Badger

Biden already has added it to his list to ban.


27 posted on 06/25/2013 10:26:00 AM PDT by hadaclueonce (dont worry about Mexico, put the fence around kalifornia.)
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To: Red Badger

“...they are also found in jets emitted by black holes and pulsars...”

Let’s just hope we really understand how this works: black holes emit jets of positrons and not the other way around :-)


28 posted on 06/25/2013 10:26:40 AM PDT by Larry - Moe and Curly (Loose lips sink ships.)
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To: Red Badger

The Founders never would have written the Second Amendment had they known about anti-matter guns.


29 posted on 06/25/2013 10:27:05 AM PDT by FLAMING DEATH (I'm not racist - I hate Biden too!)
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To: Red Badger

Encapsulate the anti-matter into a photon torpedo. :-)


30 posted on 06/25/2013 10:27:30 AM PDT by Red Steel
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To: Red Badger

What else?

A phased plasma rifle in a 40 watt range.

Just what you see pal...


31 posted on 06/25/2013 10:28:40 AM PDT by Resolute Conservative
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To: Red Badger
A table top version? Dang. Mine looks like this...

Actually I saw this going down I-40 outside Nashville on Saturday.

32 posted on 06/25/2013 10:29:11 AM PDT by DannyTN
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To: Red Steel

Did anyone happen to notice that one of the ‘side effects’ of this ‘gun’ is the production of GAMMA RAYS?...................


33 posted on 06/25/2013 10:29:26 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: cuban leaf
It is instructions on how to blow up a planet using simple ingredients and tools found around the house.

The Inevitable Zombie Apocalypse by John Ringo, discusses Moores Law as it applies to genetic engineering equipment, and what happens when any biology grad student can create his own plague.

34 posted on 06/25/2013 10:29:36 AM PDT by PapaBear3625 (You don't notice it's a police state until the police come for you.)
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To: DannyTN

Must have been headed to the Pawn Stars shop..................


35 posted on 06/25/2013 10:30:23 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Resolute Conservative

Eventually some HS kid will make one in his garage and become the next Steve Jobs..........iGun.........


36 posted on 06/25/2013 10:31:35 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: DannyTN

Kinda difficult to find ammo for that these days.................


37 posted on 06/25/2013 10:32:35 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Red Badger

it’s only a short hop from this to a “thimble nuke” ;).


38 posted on 06/25/2013 10:32:57 AM PDT by schm0e ("we are in the midst of a coup.")
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To: Red Badger

*** has succeeded in building a tabletop antimatter “gun” capable of spewing short bursts of positrons.***

Isn’t that the weapon used by Jane Fonda in BARBARELLA!


39 posted on 06/25/2013 10:33:15 AM PDT by Ruy Dias de Bivar (Sometimes you need 7+ more ammo. LOTS MORE.)
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To: Red Badger
Did anyone happen to notice that one of the ‘side effects’ of this ‘gun’ is the production of GAMMA RAYS?...................

Did anyone notice this device is powered by a "petawatt laser", where "petawatt" is defined as a billion megawatts?

40 posted on 06/25/2013 10:33:34 AM PDT by PapaBear3625 (You don't notice it's a police state until the police come for you.)
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To: DannyTN

omg. I can’t believe it didn’t cause statewide panic.


41 posted on 06/25/2013 10:33:48 AM PDT by schm0e ("we are in the midst of a coup.")
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To: FLAMING DEATH

This is the government the founders warned us about.................


42 posted on 06/25/2013 10:33:54 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Ruy Dias de Bivar

Gun?.....What gun?................

43 posted on 06/25/2013 10:35:19 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: PapaBear3625

...a billion here, a billion there......pretty soon you’re talking about real energy...................


44 posted on 06/25/2013 10:36:18 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: cuban leaf
Could this be the very beginnings of a viable superweapon capable of destroying matter at the planetary level.

Hmmmm....and it's being developed in Ann Arbor, you say?

Glad I no longer live in Columbus.


45 posted on 06/25/2013 10:44:29 AM PDT by Buckeye McFrog
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To: Red Badger

LHC End of the World Black Hole ...

http://www.youtube.com/watch?v=INodNZY5ytE


46 posted on 06/25/2013 10:53:51 AM PDT by shove_it (old Old Guardsman)
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To: shove_it

Well, France and Switzerland goes first..................


47 posted on 06/25/2013 10:59:04 AM PDT by Red Badger (Want to be surprised? Google your own name......Want to have fun? Google your friend's names........)
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To: Errant
Red Mercury????


48 posted on 06/25/2013 2:31:20 PM PDT by Hegewisch Dupa
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To: Hegewisch Dupa
What is red mercury? - By Chris Summers BBC News ;)
49 posted on 06/25/2013 3:11:19 PM PDT by Errant
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To: Red Badger; humblegunner; sit-rep; Eaker; Squantos; Lazamataz; Billthedrill

A group of us Italian scientists just invented a tabletop antipasto gun. We just need enough anchovies to power it.


50 posted on 06/25/2013 3:56:39 PM PDT by Larry Lucido
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