Once again, the simple concept difference between Polywell and Tokamak is:
Part 1: The unit is designed to confine Electrons Only. These e- are confined using magnetic fields. This is done to take advantage of e- very small mass and ease of control using magnetic fields.
Part 2: The Polywell unit once "confining" sufficient e-, then establishes a large negative potential at its center. This "Big Minus", as I have called it in the past, is then used to attract Ions. These Ions are not meant to be "confined". They are meant to oscillate in a chaotic manner through the central region of the 3D volume. The idea being that they will oscillate enough times, and with sufficient speed (energy) that statistically they will eventually have a collision and fuse mroe often than not before they escape the 3D volume. The products of the collision then may or may not have secondary collisions, but the end result is that they exit the 3D volume and the energy is harvested. Meanwhile, the "Big Minus" is maintained by make up e-(s) as determined by the e- loss rate.
Part 3: the idea of Beta=1 to 1 in a Polywel is fundamental to how it is supossed to operate. The idea is that we jam in and confine the maximum number of e- as possible given the existing magnetic field. That would be Beta=1. Pressure verse field is equal and balanced. To exceed it would obviously be a blow out. To not reach it would be operating the machine at lower possible efficiencies.
Tokamak: It wants to confine the whoel shebang with large magnets and volume. It does not want escapees. This is the big difference. Polywell does not actually seek full confinement of the fuel. It seeks only full as possible confinement of the e-. It then also seeks to allow the fuel (Ions) to have free access to each other without running into hardware before they fuse. If they Ion escapes before it fuses, that is ok. As long as enough of them that don't fuse and produce energy and products energy is harvested to sufficient levels compared to the energy spent to confine sufficient electrons to maintain a sufficient "big minus" potential to promote sufficient Ion oscillations and collisions. And the circle continues...
You argue that they have never reached Beta=1, and the machine can not do it, thus it can never be efficient enough to succeed. You do not calculate for the given 3D volume and field the maximum pressure possible to contain. You do not calculate the density and energy required to reach this pressure. You just hand wave and say it is not possible. This is based on your insistance to see it in only the Tokamak terms.
Meanwhile, the guys that have actually built and operated a number of devices, consistantly report that they have and do reach Beta=1 conditions, and even exceed them and suffer blow outs.
So, lets see, guys that actually do it, verses a hand waving guy that does not even do the math, but persists in with opinion based rhetoric. Hmmm, easy choice. I think until you can actually prove something other than functional jaw muscles and non-functioning brain, the guys actually doing the work win. Engage your brain, do some real background research, read the provided material, do some real analysis, post it, then point to it and argue your point.
Pffeeeep! Bullshit flag again on the ground, "Unsportsmanlike Hand-waving", 5 yards, loss of down, it is now 4th and 20.
Last edited by ladajo
on Fri Apr 20, 2012 2:58 pm, edited 1 time in total.
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)
What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)