Experiments at CERN are many. Many think about the LHC
(Large Hadron Collider) a special particle accelerator that is used to find the
higgs-boson. A special particle in a field of these particles and it is to
clarify that this theories particle actually exists. The higgs-boson is a field
which gives matter its mass. This in turns explains a gravitational force that
is usually associated with the mass of an object. But at CERN there are many
other experiments that are just as important and take place all the time
outside the LHC. One such experiment
would be the anti-particles. First derived from Paul Dirac, which demonstrated
that there could be another class of particles called anti particles. So for
every proton there is an anti-proton, for an electron there is a positron. Just
as these exist in principle, you can actually put them together to create more
composite systems.
This is an image of untrapped anti-hydrogen annihilation on the inner surface.
Fig.1 this graphic
© 2010 by CERN
A shining example of such a composite would be where you
would place an anti-particle with a positron and this would make “anti-hydrogen”. This has been done
practically and has been proven to exist. But one major flaw with the
experiment was that when an anti-particle and its particle partner meet, it
forms an annihilation, giving of immense light. So it showed that they were
able to obtain it. But they weren’t able to keep it for a significant amount of
time (1/6th of a second)
The process that is used to sustain anti-particles such as anti-hydrogen
is to be stored in a magnetic field and electrical field, as the anti-particles
must not meet with physical matter. But currently anti hydrogen looked exactly
the same as normal hydrogen. But due to the magnetic fields that trap the anti-hydrogen,
scientist don’t know whether or not that gravity works the same way on anti-hydrogen
as normal hydrogen does. Energy levels of an anti-hydrogen.
This is a graphical representation of matter(Hydrogen) Vs. Anit-matter(Anti-Hydrogen)
Fig.2 this graphic @2011 by CERN
So that is well and good, it sounds nice and we have created
some of it. Where does it come into our life? What physical application does it
have in society? Well, try Positron Emission Tomography (PET) Scanners. Which
have made essential breakthroughs in the medical sciences, in Oncology,
Neuroimaging, Cardiology, Musculo-skeletal and Pharmacology imaging. The PET
uses a special isotope, a nuclear isotope which decays very quickly and one of
the decay products is the positron. The positron then circulates around your
brain for example. But it is emitted very slowly around your brain, it will hit
an electron, thus when the positron hits the electron light is emitted then
giving a signal to the detector.
As of yet, there is not much you can utilise from anti-matter
technology, mainly due to man power and or finances. But when these hurdles are
over come then most of the issues we currently face will be vanquished.
Feynman
