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Article on laser driven pB11 fusion

Posted: Tue Jul 21, 2015 8:53 pm
by crowberry
Heinrich Hora has written an article called Clean boron fusion using extreme laser pulses where he reports on simulations to study laser driven pB11 fusion and some experimental results too.

Re: Article on laser driven pB11 fusion

Posted: Fri Jul 24, 2015 5:37 pm
by JohnP
This is interesting. Aside from the challenges of direct conversion though, I wonder about the effects of repeated 10,000 tesla magnetic pulses on any nearby metal...

Re: Article on laser driven pB11 fusion

Posted: Sat Dec 30, 2017 12:14 am
by rcain

Haven't been on here for a while. Came across the following interesting papers on arxiv by Hora, Miley, et al, on HB11 laser fusion. Thought you folks might find them a good read. Seem to be on the same topic as this thread & didn't find them posted elsewhere. Happy reading.

Laser boron fusion reactor with picosecond petawatt block ignition
Heinrich Hora, Shalom Eliezer, Jiaxiang Wang, Georg Korn, Noaz Nissim, Yanxia Xu, Paraskevas Lalousis, Goetz Kirchhoff, George H. Miley
(Submitted on 29 Jul 2017)

For developing a laser boron fusion reactor driven by picosecond laser pulses of more than 30 petawatts power, advances are reported about computations for the plasma block generation by the dielectric explosion of the interaction. Further results are about the direct drive ignition mechanism by a single laser pulse without the problems of spherical irradiation. For the sufficiently large stopping lengths of the generated alpha particles in the plasma results from other projects can be used.

Extreme laser pulses for possible development of boron fusion power reactors for clean and lasting energy
H. Hora, S. Eliezer, G. J. Kirchhoff, G. Korn, P. Lalousis, G. H. Miley, S. Moustaizis
(Submitted on 17 Mar 2017)

Extreme laser pulses driving non-equilibrium processes in high density plasmas permit an increase of the fusion of hydrogen with the boron isotope 11 by nine orders of magnitude of the energy gains above the classical values. This is the result of initiating the reaction by non-thermal ultrahigh acceleration of plasma blocks by the nonlinear (ponderomotive) force of the laser field, in addition to the avalanche reaction that has now been experimentally and theoretically manifested. The design of a very compact fusion power reactor is scheduled to produce then environmentally fully clean and inexhaustible generation of energy at profitably low costs. The reaction within a volume of cubic millimetres during a nanosecond can only be used for controlled power generation.

PS. recent news from ladajo on EMC2 News thread sounds mighty tantilising. Can't wait to hear more of Polywell. Glad to see it's still bubbling/spinning away. :)

Re: Article on laser driven pB11 fusion

Posted: Sat Apr 27, 2019 2:46 pm
by Carl White
They've set up a company to develop this:

Re: Article on laser driven pB11 fusion

Posted: Tue Apr 30, 2019 5:29 pm
by kurt9
This is not your typical laser fusion setup.

These guys are using CPA lasers. CPA lasers are of the very short pulses generated by a method similar to that of the Wakefield technique used in those "table-top" particle accelerators that have recently been developed. So this might have a chance of working.

Re: Article on laser driven pB11 fusion

Posted: Tue May 12, 2020 9:30 am
by crowberry
Jonathan Tennenbaum has written a series of articles which are rather detailed on the idea of hydrogen-boron fusion proposed by professor Heinrich Hora. Some of the material is probably very familiar for readers of TP, but the articles give a very nice general and accessible introduction to this interesting fusion concept.