Nuclear and Atomic Physics

   

Magnetized Target Fusion Using High Speed Pellets

Authors: Colin Bruce Jack

There is a way to perform inertial confinement fusion which avoids the usual need for either a sacrificial assembly of significant cost, or control of complex plasma behaviour.

Ultraspeed charged pellets have been fired at 100 km/s from modified particle accelerators for decades, and Winterberg suggested their use for inertial confinement fusion, also decades ago. The show-stopper has been the impossibility of bringing charged pellets to a true focus using predetermined electric or magnetic fields, a consequence of Earnshaw’s theorem. I have invented a technique for achieving such focusing, by measuring and adjusting the trajectories of individual pellets. Precise focus can then be achieved at any range. A series of pellets fired at successively increasing speeds from a linear accelerator some distance from a target can catch up en route to arrive together. Thus an accelerator of relatively modest power can deliver an intense input to a compact volume.

Slutz et al. have shown that high gain magneto-inertial fusion can be performed using implosion speed as low as 130 km/s. They propose Z-pinch with a magnetized liner, plus a laser pulse to preheat a central portion of the fuel. However disadvantages of this method include:

•Peak input power ~1 PW: high capital cost

•Sacrificial capsule with low impedance wires for ~60 MA input current pulse is difficult and costly to recycle: high ‘kopeck’ cost

Identical fusion conditions can be created using instead pellets fired in at high speed. This method has the advantages:

•Peak input power ~20 GW at a few MHz, provided by commercially available RF MOSFETs

•No central sacrificial capsule or wires needed; the pellets are cheap to make

This paper describes an appropriate design. The detonation can take place completely surrounded by lithium. Most of the energy produced can be directly converted to electricity by MHD.

Comments: 12 Pages.

Download: PDF

Submission history

[v1] 2016-07-20 11:30:27

Unique-IP document downloads: 21 times

Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus