Production of direct fusion neutrons during ultra-intense laser-plasma interaction

被引:5
作者
Goloviznin, VV [1 ]
Schep, TJ [1 ]
机构
[1] EURATOM, FOM, Inst Plasma Phys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands
关键词
D O I
10.1088/0022-3727/31/22/011
中图分类号
O59 [应用物理学];
学科分类号
摘要
The plasma response to a picosecond multi-terawatt laser pulse is characterized by several distinctly different time scales. In the present report we consider the plasma's evolution on the slow time scale typical for excitations of the ionic component. A relativistically strong laser pulse (10(18)-10(19) W cm(-2)) is shown to drive, under proper conditions, mega-ampere ion currents with a typical ion energy of 50-150 keV, which covers the region of the resonance peak in the cross section of D-T fusion and, hence, provides an opportunity to initiate nuclear reactions directly in the laser focus.
引用
收藏
页码:3243 / 3248
页数:6
相关论文
共 28 条
[1]   Anomalous absorption of very high-intensity laser pulses propagating through moderately dense plasma [J].
Adam, JC ;
Heron, A ;
Guerin, S ;
Laval, G ;
Mora, P ;
Quesnel, B .
PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4765-4768
[2]  
ANDREEV NE, 1992, JETP LETT+, V55, P571
[3]  
Beg FN, 1997, PHYS PLASMAS, V4, P447, DOI 10.1063/1.872103
[4]   Relativistic channeling of a picosecond laser pulse in a near-critical preformed plasma [J].
Borghesi, M ;
MacKinnon, AJ ;
Barringer, L ;
Gaillard, R ;
Gizzi, LA ;
Meyer, C ;
Willi, O ;
Pukhov, A ;
MeyerterVehn, J .
PHYSICAL REVIEW LETTERS, 1997, 78 (05) :879-882
[5]  
BOROVSKIJ AV, 1994, SOV PHYS JETP, V79, P81
[6]   2-DIMENSIONAL REGIMES OF SELF-FOCUSING, WAKE-FIELD GENERATION, AND INDUCED FOCUSING OF A SHORT INTENSE LASER-PULSE IN AN UNDERDENSE PLASMA [J].
BULANOV, SV ;
PEGORARO, F ;
PUKHOV, AM .
PHYSICAL REVIEW LETTERS, 1995, 74 (05) :710-713
[7]   ULTRAHIGH-GRADIENT ACCELERATION OF INJECTED ELECTRONS BY LASER-EXCITED RELATIVISTIC ELECTRON-PLASMA WAVES [J].
CLAYTON, CE ;
MARSH, KA ;
DYSON, A ;
EVERETT, M ;
LAL, A ;
LEEMANS, WP ;
WILLIAMS, R ;
JOSHI, C .
PHYSICAL REVIEW LETTERS, 1993, 70 (01) :37-40
[8]   COHERENT AND INCOHERENT XUV EMISSION IN HELIUM AND NEON, LASER-DRIVEN PLASMAS [J].
CRANE, JK ;
PERRY, MD ;
STRICKLAND, D ;
HERMAN, S ;
FALCONE, RW .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 1993, 21 (01) :82-89
[9]   High intensity laser absorption by gases of atomic clusters [J].
Ditmire, T ;
Smith, RA ;
Tisch, JWG ;
Hutchinson, MHR .
PHYSICAL REVIEW LETTERS, 1997, 78 (16) :3121-3124
[10]   Harmonic generation by femtosecond laser-solid interaction: A coherent ''water-window'' light source? [J].
Gibbon, P .
PHYSICAL REVIEW LETTERS, 1996, 76 (01) :50-53