Direct observation of particles with energy >10 MeV/u from laser-induced processes with energy gain in ultra-dense deuterium

被引:21
作者
Holmlid, Leif [1 ]
机构
[1] Univ Gothenburg, Dept Chem & Mol Biol, SE-41296 Gothenburg, Sweden
关键词
Laser-induced fusion; MeV particles; Ultra-dense deuterium; SECONDARY-ELECTRON YIELD; COULOMB EXPLOSIONS; RYDBERG MATTER; NUCLEAR-REACTIONS; CLUSTERS; FUSION; D(-1); EMISSION; IGNITION; CATALYST;
D O I
10.1017/S0263034613000414
中图分类号
O59 [应用物理学];
学科分类号
摘要
Nuclear fusion in ultra-dense deuterium D(-1) was reported previously to be induced by 0.2 J pulses with 5 ns pulse length, ejecting particles with energies in the MeV range. The ns-resolved signal from D(-1) to two in-line collectors at up to 1 m distance can be observed directly on an oscilloscope, showing particles with energies in the range 1-20 MeV u(-1). They are probably mainly protons and deuterons in the form of neutral ultra-dense hydrogen H(-1) fragments. Electrons and photons give only small contributions to the fast signal. The observed signal at several mA peak current corresponds to 1 x 10(13) particles released per laser shot and to an energy release >4 J assuming isotropic formation and average particle energy of 3 MeV. This corresponds to an energy gain of 30 in the process. A movable slit close to the laser target gives lateral resolution of the signal generation, showing almost only fast particles from the point of laser impact and penetrating photons from the plasma outside the laser impact point. The observation of multi-MeV particles indicates nuclear fusion, either as a source or as a result.
引用
收藏
页码:715 / 722
页数:8
相关论文
共 33 条
[1]   Search for Superconductivity in Ultra-dense Deuterium D(-1) at Room Temperature: Depletion of D(-1) at Field Strength >0.05 T [J].
Andersson, Patrik U. ;
Holmlid, Leif ;
Fuelling, Stephan .
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2012, 25 (04) :873-882
[2]   Fusion Generated Fast Particles by Laser Impact on Ultra-Dense Deuterium: Rapid Variation with Laser Intensity [J].
Andersson, Patrik U. ;
Holmlid, Leif .
JOURNAL OF FUSION ENERGY, 2012, 31 (03) :249-256
[3]   Cluster ions DN+ ejected from dense and ultra-dense deuterium by Coulomb explosions: Fragment rotation and D+ backscattering from ultra-dense clusters in the surface phase [J].
Andersson, Patrik U. ;
Holmlid, Leif .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2012, 310 :32-43
[4]   Superfluid ultra-dense deuterium D(-1) at room temperature [J].
Andersson, Patrik U. ;
Holmid, Leif .
PHYSICS LETTERS A, 2011, 375 (10) :1344-1347
[5]   Efficient source for the production of ultradense deuterium D(-1) for laser-induced fusion (ICF) [J].
Andersson, Patrik U. ;
Lonn, Benny ;
Holmlid, Leif .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2011, 82 (01)
[6]   Deuteron energy of 15 MK in ultra-dense deuterium without plasma formation: Temperature of the interior of the Sun [J].
Andersson, Patrik U. ;
Holmlid, Leif .
PHYSICS LETTERS A, 2010, 374 (28) :2856-2860
[7]   Ultra-dense deuterium: A possible nuclear fuel for inertial confinement fusion (ICF) [J].
Andersson, Patrik U. ;
Holmlid, Leif .
PHYSICS LETTERS A, 2009, 373 (34) :3067-3070
[8]   Laser-driven nuclear fusion D plus D in ultra-dense deuterium: MeV particles formed without ignition [J].
Badiei, Shahriar ;
Andersson, Patrik U. ;
Holmlid, Leif .
LASER AND PARTICLE BEAMS, 2010, 28 (02) :313-317
[9]   Laser-induced variable pulse-power TOF-MS and neutral time-of-flight studies of ultradense deuterium [J].
Badiei, Shahriar ;
Andersson, Patrik U. ;
Holmlid, Leif .
PHYSICA SCRIPTA, 2010, 81 (04)
[10]   Production of ultradense deuterium: A compact future fusion fuel [J].
Badiei, Shahriar ;
Andersson, Patrik U. ;
Holmlid, Leif .
APPLIED PHYSICS LETTERS, 2010, 96 (12)