Collective alpha particle stopping for reduction of the threshold for laser fusion using nonlinear force driven plasma blocks Export

@article{citeulike:4645602, abstract = {The anomaly at laser plasma interaction at laser pulses of TW to PW power and ps duration led to a very unique generation of quasi-neutral plasma blocks by a skin layer interaction avoiding the relativistic self-focusing. This is in contrast to numerous usual experiments. The plasma blocks have ion current densities above 1011 A/cm2 and may be used for a fast ignition scheme with comparably low compression of the deuterium tritium (DT) fuel. The difficulty is that a very high energy flux density E* of the ions is necessary according to the hydrodynamic theory (Bobin, 1971, 1974; Chu, 1972). This theory did not include the later discovered collective effect for the stopping power of the alpha particles. One problem is being discussed, whether the Bethe-Bloch binary collision theory or the collective collision theory of Gabor has to be applied. The inclusion of the collective effect results in a reduction of the threshold value of E* for ignition by a factor of about fife.}, author = {Malekynia, B. and Ghoranneviss, M. and Hora, H. and Miley, G. H.}, citeulike-article-id = {4645602}, citeulike-linkout-0 = {http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=5534920}, citeulike-linkout-1 = {http://dx.doi.org/10.1017/S0263034609000305}, day = {23}, doi = {10.1017/S0263034609000305}, journal = {Laser and Particle Beams}, keywords = {alpha, fusion, laser, nonlinear, particle, plasma, reduction, relativistic, self-focusing, stopping, threshold}, month = {March}, number = {02}, pages = {233--241}, posted-at = {2009-05-27 15:10:29}, priority = {2}, title = {Collective alpha particle stopping for reduction of the threshold for laser fusion using nonlinear force driven plasma blocks}, url = {http://dx.doi.org/10.1017/S0263034609000305}, volume = {27}, year = {2009} }

TY - JOUR ID - citeulike:4645602 L3 - citeulike-article-id:4645602 N2 - The anomaly at laser plasma interaction at laser pulses of TW to PW power and ps duration led to a very unique generation of quasi-neutral plasma blocks by a skin layer interaction avoiding the relativistic self-focusing. This is in contrast to numerous usual experiments. The plasma blocks have ion current densities above 1011 A/cm2 and may be used for a fast ignition scheme with comparably low compression of the deuterium tritium (DT) fuel. The difficulty is that a very high energy flux density E* of the ions is necessary according to the hydrodynamic theory (Bobin, 1971, 1974; Chu, 1972). This theory did not include the later discovered collective effect for the stopping power of the alpha particles. One problem is being discussed, whether the Bethe-Bloch binary collision theory or the collective collision theory of Gabor has to be applied. The inclusion of the collective effect results in a reduction of the threshold value of E* for ignition by a factor of about fife. IS - 02 JF - Laser and Particle Beams EP - 241 TI - Collective alpha particle stopping for reduction of the threshold for laser fusion using nonlinear force driven plasma blocks VL - 27 SP - 233 KW - alpha KW - fusion KW - laser KW - nonlinear KW - particle KW - plasma KW - reduction KW - relativistic KW - self-focusing KW - stopping KW - threshold AU - Malekynia, B AU - Ghoranneviss, M AU - Hora, H AU - Miley, GH PY - 2009/03/23/ UR - http://dx.doi.org/10.1017/S0263034609000305 ER -