Re: Fusion in a test tube, my reasoning
- From: "Chris" <anon@xxxxxxxxxxxx>
- Date: Thu, 6 Nov 2008 10:11:23 -0000
I guess I'm missing something here: all the H ions will feel roughly
the same acceleration, right? If that's the case, they will also all be
traveling at roughly the same velocity (direction and speed), so how do
you get high energy collisions between them if they're all going the
same direction? ISTM that you would need to have batches going opposite
directions (like in a particle accelerator) to get significant energy
into a collision.
D
The accelerated ions hit unionised atoms that stay put. The gas contains
both ionised and unionised hydrogen atoms.
This has the effect of heating the gas near the axis and since there is so
little gas and the collisions are so energetic the temperature of the region
near the axis goes up very significantly. There will be practically no
conduction or convection away from the central region and the radiation is
trapped by the surrounding ionised gas and this radiation pressure is the
mechanism where the heat of the fusion reacions are transfered to movement
of the plasma against the magnetic field thus inducing current in the coil
which maintains oscilation and the transfer of power.
"David Kerber" <ns_dkerber@xxxxxxxxxxxxxxxx> wrote in message
news:MPG.237bd8f2883410498969b@xxxxxxxxxxxxxxxxxxxx
In article <YQmQk.10286$KG5.3874@xxxxxxxxxxxxx>, anon@xxxxxxxxxxxx
says...
The acceleration is due to the circular herzian waves emanating from the
electrons oscillating in the winding of the coil. These circular
electromagnetic waves move towards the axis of the coil in concentric
circles. As you know the electric a magnetic fields are at right angles
and
in phase. The electric field lines from concentric circles round the axis
getting stronger towards the centre. The magnetic field is along the coil
but getting stronger towards the centre.
The electrons and ions are moved in orbits by these fields which get
tighter
and more energetic as you move towards the axis.
The electrons are accelerated by the electric vector and deflected
towards
the axis by the longitudinal magnetic field of the electromagnetic wave.
As their velocity increases the magnetic field gets stronger confining
them
to their orbit. Ions close to the axis experience a stronger
electromagetic
field and aquire higher energy.
The condition that the centrepetal force=force due to movement through
magnetic field will be met for some orbits as the electromagnetic field
changes during the oscillation of the current amplitude.
As the amlitude of the wave increases over the 1/4 cycle this condition
will
be met for increasingly smaller radii otbits and the trons will tend to
be
compressed towards the axis since there is a force of repulsion from the
windings on the trons forcing them towards the axis.
I guess I'm missing something here: all the H ions will feel roughly
the same acceleration, right? If that's the case, they will also all be
traveling at roughly the same velocity (direction and speed), so how do
you get high energy collisions between them if they're all going the
same direction? ISTM that you would need to have batches going opposite
directions (like in a particle accelerator) to get significant energy
into a collision.
D
"David Kerber" <ns_dkerber@xxxxxxxxxxxxxxxx> wrote in message
news:MPG.237b64ca2da33bfa989698@xxxxxxxxxxxxxxxxxxxx
In article <jMeQk.10765$Cc5.10372@xxxxxxxxxxxxx>, anon@xxxxxxxxxxxx
says...
No, it's not, unless your tube is as big as the mean free path.
It's
the field strength x the distance it acts on the particle. If your
tube
is only .1m long, the field can only act on it for at MOST .1m, so
the
energy is a tiny fraction of the mfp x the field strength.
I understand that for trons moving in straight paths but in my tube
the
trons move in circles.
Then how do you accelerate them around those circles? Do you have a
synchrotron arrangement?
....
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