Transcript Slide 1 - Indico

The Antidote to Angels and Demons
Antimatter is real
saves lives
origins of the universe
Huge mystery
MATTER
ANTIMATTER
MATTER
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+
Made of ATOMS
A million in a hairs breadth
Inside ATOMS : electric charge. “Opposites attract”
MATTER
ANTIMATTER
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+
+
-
Electron and Positron
Why is antimatter
fascinating ?
Why is antimatter
fascinating ?
When antimatter meets its matter twin
They annihilate in flash of light
Why is antimatter
fascinating ?
When antimatter meets its matter twin
They annihilate in flash of light
Result of one electron and one positron
annihilating at CERN…..
….or many annihilating
inside a physicist’s brain
At low energies, electronpositron annihilations can
reveal the workings of the
brain in the technique
called Positron Emission
Tomography (PET).
This image is of the brain
of one of the physicists
working with high-energy
electron-positron
collisions at CERN.
Demonic Antimatter?
20 gm
•1 gm antimatter = Hiroshima
•Theme of Angels and Demons
(a work of fiction)
Demonic Antimatter?
Matter
(and antimatter)=
Congealed Energy
TRUE …….
in principle
Technology etc =
liberate it for use
20 gm
Chemistry 1/1000
Nuclear fusion 1/100
Annihilation 2/1 !!
•1 gm antimatter = Hiroshima
•Theme of Angels and Demons
(a work of fiction)
Result of one electron and one positron
annihilating at CERN…..
Looks dramatic but
energy is less than
a puff of air.
The drama is that it is
concentrated in just
ONE
particle - antiparticle
Result of 1 gm electrons and positrons
annihilating …..
Looks dramatic but
energy is less than
a puff of air.
The drama is that it is
concentrated in just
ONE
particle - antiparticle
Bulk annihilation involves
1000000000000000000000000
all together.
“non-trivial”
Dan Brown interview:
CERN is now regularly producing small quantities of
antimatter in their research for future energy sources.
Dan Brown interview:
Antimatter holds tremendous promise;
,
a single droplet could power New York City for a full day.
Dan Brown interview:
With fossils fuels dwindling, the promise of harnessing
antimatter could be an enormous leap for the future of
this planet.
Dan Brown interview:
Of course, mastering antimatter technology
brings with it a chilling dilemma.
Dan Brown interview:
Will this powerful new technology
save the World?
or
Will it be used to create the most
deadly weapon ever made?
Dan Brown interview:
Will this powerful new technology
save the World?
Physics Teachers: Use this for discussion of Energy:
First Law of Thermodynamics (Conservation)
Second Law of Thermodynamics (Waste)
Could one ever make an antimatter bomb?
Could one ever make an antimatter bomb?
Could antimatter ever power space craft?
Could one ever make an antimatter bomb?
Could antimatter ever power space craft?
Did a lump of antimatter hit Tunguska in 1908?
Angels and Demons is fiction.
What are the facts?
P.A.M.Dirac 1902-1984
Cosmic rays
Energy
Creates
matter and antimatter
Electrons and positrons
High energy antiparticles
Antiparticles and the Big Bang at
CERN
At CERN: 27km circular accelerator (LEP)
Electrons and positrons collide head on
at near to the speed of light.
Simulates (just after) Big Bang
Creation of matter and antimatter =
quarks antiquarks; electrons positrons…
Energy of Big Bang
turns into……
MATTER
ANTIMATTER
We don’t know why the BB happened.
We do know what happened afterwards.
These CERN experiments have NOT
“proved Creation from nothing”
(ignore cod-theology;
science investigating HOW ?; not same as “WHY?”)
We don’t know why the BB happened.
We do know what happened afterwards.
And theres a BIG PUZZLE
Big Bang---> Matter
• Stars
• Hydrogen
• Supernovae
• Carbon, Oxygen ..
• Us
• 15 billion years
Antimatter:
Where did it go?
Why is there anything
remaining at all?
Is the answer
STRANGE or BEAUTIFUL?
Cabibbo Kobayashi and Maskawa
aaa
ANTIQUARKS
make atomic antinuclei
antiMatter
antistars
d u
WHY NOT?
QUARKS
make atomic nuclei
Matter
stars
u d
aaa
ANTIQUARKS
QUARKS
s c
d u
c s
u d
aaa
ANTIQUARKS
QUARKS
s c
d u
c s
u d
aaa
ANTIQUARKS
QUARKS
s c
d u
c s
u d
aaa
ANTIQUARKS
QUARKS
b t
s c
d u
t b
c s
u d
aaa
IT WORKS! This conference!!
But not the answer to life the univ …..
ANTIQUARKS
QUARKS
b t
s c
d u
t b
c s
u d
Looking for
matter-antimatter asymmetry
Antihydrogen:
First element of the
antiperiodic table
CERN: 2000 antihydrogen atoms an hour
Antimatter and Star Trek:
1,000,000,000,000,000,000,000,000
antiatoms
Antimatter and Star Trek:
1,000,000,000,000,000,000,000,000
antiatoms
At 2 million per second
Antimatter and Star Trek:
1,000,000,000,000,000,000,000,000
antiatoms
At 2 million per second
=10 billion years
Antimatter and Star Trek:
1,000,000,000,000,000,000,000,000
antiatoms
At 2 million per second
=10 billion years
…and you also need to store them….
Antimatter Magnetic Bottle
1 million max stored.
A billion billion bottles =
store 1 gramme
Antimatter and Star Trek: Fact or Fiction?
Antimatter and Star Trek: Fact or Fiction?
The New Mexico
company Positronics
Research, has
calculated that a
spacecraft running on
antimatter fuel equal in
mass to that of a grain of
rice could travel to Mars
and back.
Antimatter can never be used as a fuel
You have to make it one atom at a time…..
Unless there is bulk antimatter out there
Tunguska 1908
Antimatter???
(No…..a comet)
Tunguska –
Antimatter
would leave traces.
Radio isotopes C13…
From antiproton annihilations
Nuclear detectives
Nothing found
Monday, October 4, 2004
• Air Force pursuing
antimatter
weapons
• Program was
touted publicly,
then came official
gag order
Dan Brown interview:
Of course, mastering antimatter technology
brings with it a chilling dilemma.
Antimatter
Antimatter is Science Fact
But making 1gm of antistuff
Is Science Fiction
and it costs more energy to make
than you can ever get back,
so it’s useless
for solving world’s energy needs.
Antimatter
Antimatter
– saving lives in PET SCANS
--Recreating aftermath of Big Bang at CERN;
--reveals origin of material universe
-- “experimental cosmology”
Antimatter
Antimatter
– saving lives in PET SCANS
--Recreating aftermath of Big Bang at CERN;
--reveals origin of material universe
-- “experimental cosmology”
With such wonders in fact, who needs fiction?
The Antidote to Angels and Demons