two schools of thought

     
 
fusor post Farnsworth tiny apertures for fuel ions to enter cathode space  
 
one of many fusors built by Farnsworth employing the larger aperture for protons to exit cathode space
Farnsworth's design: small apertures (orange arrow) for entry of fuel ions & large apertures (blue arrows) for protons to reach anode wall

 

 
Farnsworth is the originator of this electrostatic confinement for fusion, and was aware there are two parts of the fusion product, neutrons, and protons, there are four likely fusions occuring.  the large openings in the cathodes he built were there to allow the protons to reach the physical anode.  the physical anode is positive relative to the cathode which could run 100kv or more.  the protons are inherently positive in nature.  as the proton nears the anode wall, its positive charge repels the proton, slowing it down, this means the proton is doing "work" and the effect is to charge the anode further.  as the reaction increases in power (density) the effect on the anode will actually exceed what the power supply is generating, and the process sustains itself ... as this increases, the charge exceeds the power supply voltage and surplus energy results; this can be used to power other things.  since the proton component is roughly half the fusion product, that becomes a huge amount of electricity ... the fusor is producing electricity directly

the largely closed cathode that the "apprentices" propose ignores the proton which, if it is allowed to impact the cathode, subtracts from the negative charge and actually increases loss in efficiency.  Why Meeks made his comment about ignoring the proton is a bit of a mystery to me.

This has to be due to one of the following:

 

 

 

(1) Meeks has fabricated his fusor neutron counts, and really had a poor performing design.

(2) Meeks did some other change perhaps one he was not aware of that allowed him to show good fusion performance.

(3) something no one understands is at work here.  which is an arguments for re-visiiting the research.