How does an accelerator for heavy ions work?
Formal Metadata
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How does an accelerator for heavy ions work?
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| Alternative Title |
Particle accelerators – One for all elements
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| License |
CC Attribution - NoDerivatives 4.0 International:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor. |
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2013
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| Language |
English
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Content Metadata
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| Abstract |
All experiments at the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany need fast particles. Jens Stadlmann operates and develops accelerators. He explains how ions are produced, how they reach high speeds in linear and circular accelerators, and what the new FAIR accelerator facility that is being built will be able to achieve.
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| Keywords | particle accelerator |
00:00
Stop codon
Whitewater
Schwermetall
Vulcanization
Atomic number
00:25
Electron
Materials science
Cell (biology)
Chemical property
Ballistic trauma
Nanoparticle
Protonation
Separator (milk)
Atomic number
Hydrophobic effect
00:46
Chemical experiment
Atomic number
00:59
Electron
Chemical experiment
Protonation
Atom
Hydrophobic effect
01:39
Chemical element
01:59
Chemical experiment
02:07
Island
Metabolic pathway
River source
02:49
Island
Chemische Verschiebung
Tube (container)
03:13
Vulcanization
Metabolic pathway
Magnetism
Hyperpolarisierung
Wursthülle
03:55
Machinability
Storage tank
04:08
Chemical experiment
04:14
Vulcanization
04:54
Chemical structure
00:00
the. the. the physicist again stoppelman develops accelerators at the g s i the hell hole center for heavy eye on research into arm stop here we find a particle accelerator with a very special capabilities yes specialists to exploit heavy atoms have the ions such we have a special up most is why doesn't the welsh.
00:26
a separate electrons and protons and we can exploit everything from protons to rain researchers from all over the world use this diversity of particles in time shot to investigate atoms and their cores plasmas cellular processes and peculiar properties of materials they all require for their experience.
00:47
its various fast ions for example electrically charged atoms to understand how a particle accelerator works we have to first have a look at how atoms are constructed.
01:00
the core comprises neutrons and positively charged protons this is surrounded by a shell of negatively charged electrons positive and negative charges of the atom cancel each other out. if we apply an external voltage nothing happens. and applied electrical bias has no effect to accelerate an atom we must first transform it into a positively charged ion to do this electrons must be stripped from the atom. the most easy way to do it it's just that he used it and for example in something like that like well you know there's a filament made out of times the current runs like will stop it's very very hot and some of the times that adams new some electrons and you get the steam out of times i m's was a loss.
01:51
but france and that the funds we call that last among the theory you put now apply a high order to extract some of this times than i and have a very very basic and simple and sells the height mean you see one of the alliance also g. as i am we create this class much more effectively and from different element.
02:11
and so from here dion start the journey to this way to fix the path of the ions leads from the source to the linear accelerator this accelerates the islands with the aid of an accelerating electrical by us up to a maximum speed of twenty percent of the speed of light only you cannot desolate science with.
02:31
elevating aldrich make them a little passed on to slow them down again.
02:36
so what we used to say betray the ions that they think they estimated by the the it comes to holding each week and inject them in the chain of so-called if she said in an electric field positive by and always move from the positive to the negative poll in an alternating by.
02:57
i os they would simply move backward and forward to ensure the island's only move forward we must trick them whenever the electric field is pointing in the wrong direction the ions find themselves in a tube that shields them from the bias whenever the feel points in the right direction for example the bias has the.
03:17
wrecked polarity the ions receive a boost and move faster and faster however to get anywhere near the speed of light the accelerator must be many many kilometers long in such cases the iowans are directed from the linear accelerator into a ring accelerator the ring accelerator is composed of. magnets which are capable of diverting the ions into a circle path for example a given ion returns back to the same point after completing a tour of the ring upon which it receives another boost in this way ions can be accelerated to speed up to ninety percent of the speed of light for the entire.
03:57
assesses driven from the central control room was the main component that you cite from you you set up the use of the voters and humans that the machines itself so you have that it's also see you may like to say this that i answered the phone at the store tring we operate the machine twenty four hours a day said.
04:17
a sweet and from you you set up the team's the various experience yet the most exciting accelerator at the g s i is the fair facilities under construction since two thousand and twelve fair stands for the city of antiproton i research we will be able to produce and the provinces and the matter.
04:38
a completely new field of science in addition we still do science was heavy i was like we do today but we will have effect of hundred thousand high intensity compared to the present geez i separated so it's like building the present she is i just as arabia hundred two thousand times the use of and the matter the large quantities of i.
04:58
cons and the higher energies at the fair facility allow us to gain new insights into the structure of matter and the development of our universe.
