Reply To: General thought on old coal mines.

[JimmyT]

Rezwan wrote:

FYI, The onion design has been temporarily shelved. The current thinking is that it will be more difficult to manufacture than a simple cylinder shape. Look at the picture Rez’ has posted on the topic titled “Dense Plasma Focus (DPF)” on the home page. It’s a small picture but it depicts a cylinder design. Perhaps later generations of the device can have an onion design, which may well prove to be lighter and more efficient.

Meanwhile, maybe we can harass Rezwan into posting a bigger picture of this variant.

My impression was that it was called an onion because of all those layers…

The onion design – Eric has explained this to me a couple of times. Someone else may be better able to turn this into an article. If you recall, we had an earlier animation that showed a cylinder. This was replaced with the electrode animation. This article posted by Rajdeep Singh Rawat on the DPF website gives some of the science behind the benefits of the “birdcage” electrode design over the solid cylinder. Now to just get something about the science behind the “onion”.

Correct me if I’m wrong Aeronaut. But I think you and I are talking about the X-ray conversion part of the generator. Not the electrode portion, be it either cylinder or rods.