Plasma focus neutron scaling laws from numerical experiments up to 25mj y n vs e 0 note y n e 0 2 at low e 0. Fusionbased propulsion can enable fast interplanetary transportation. Design of zpinch and dense plasma focus powered vehicles. This cheap and unlimited energy source is based on aneutronic fuels and the dense plasma focus device, a combination we call focus fusion. Fusion and applications which showed 500 repeated firings of a dense plasma focus dpf device ht culled from links at which collected this and other relevant research. Study cherenkov radiation by production of positrons and. Pdf dense plasma focus from alternative fusion source to. The mather type have a 1 and filippov type a 150 kev ions in a dense plasma. The energy produced will be environmentally safe for all life on our planet. The zpinchdense plasma focus method is an mif concept in which a column of gas is converted to plasma and then compressed to. Prospects for p b fusion with the dense plasma focus.
The dense plasma focus dpf, a coaxial plasma gun, utilizes pulsed high current electrical discharge to heat and compress the plasma to very high density and temperature with energy densities in. Pdf current and perspective applications of dense plasma focus. A fusion reactor would have abundant fuel supply contd while the first generation fusion reactor would burn dt, a second generation reactor would likely burn only deuterium. Plasma rapidly expands against magnetic nozzle, generating thrust. Induced fields interact with current to dynamically compress gas to thermonuclear temperatures. Dense plasma focus wikimili, the best wikipedia reader. From beamtarget to thermonuclear fusion in the dense plasma. Magnetoinertial fusion mif is an approach which has been shown to potentially lead to a low cost, small reactor for fusion break even1.
Major lorentz acceleration continues with forward tilting of the current beginning to focus the flow electromagnetically. Dense plasma focus as a novel high energy density pulsed. The key to focus fusion is a dense plasma focus device and a form of fusion called aneutronic fusion. The relevant fusion processes for the dpf are beamtarget and thermonuclear, which are distinguished by the plasma ion energy and density distributions. The dense plasma focusdpf device has long been known to be an efficient source of neutrons from fusion reactions and of mevenergy ion and electron beams. The system demonstrated scaling laws that suggested it would not be useful in the commercial power role, and since the 1980s it has been used primarily as a fusion teaching system, and as a source of neutrons and xrays. The dpf device has always been in the company of several alternative magnetic fusion devices as it produces intense fusion neutrons. We have for the first time simultaneously imaged the plasmoid at high 30. Creation of a dense plasma focus device and its application in. Pulsed current discharges through gas 100 ma deuterium gas is injected hypersonically into chamber. Dense plasma focus, quantum magnetic field effect, nuclear fusion, aneutronic fusion 1. Nathan majernik, seth pree, yusuke sakai, brian naranjo, seth putterman and. Using a dense plasma focus device with a 50 kj capacitor charge, we have observed fusion reactions from deuterium ions with record energies of 150 kev, which are confined for durations of 730 ns in the cores of plasmoids with typical radii of 300500. The electromagnetic compression of the plasma is called a pinch.
A dense plasma focus dpf is a type of plasma generating system originally developed as a fusion power device starting in the early 1960s. Internetbased plasma focus course on numerical experiments. Focus fusion uses the dense plasma focus device to guide a series of instabilities, each one increasing density and temperature, to produce fusion. Instead of trying to stabilize and confine the plasma as in an ordinary fusion reactor, the dense plasma focus takes advantage of the plasma natural instability to release a large amount of energy in a very short time. This allows us to use a device, the dense plasma focus, that is so small you can hold its heart in your hands. Lerner submitted on 25 jan 2004, last revised 27 jan 2004 this version, v2. Institute of plasma physics and laser microfusion, warsaw.
Innovation on the shoulders of giants rich body of dpf scientific literature since invention in 60s dozens of research groups worldwide xrayneutron applications us teams at ksu, nstec 2009. Using a dense plasma focus device with a 50 kj capacitor charge, we have observed fusion reactions from deuterium ions with record energies of 150 kev, which are confined for durations of 730. Introduction controlled nuclear fusion using hydrogenboron. Pdf dense plasma focus from alternative fusion source.
Experimental results on the irradiation of nuclear fusion. Dense plasma focus 4 dense plasma focus circuit pulse circuit pulsed xray generation instrumentation. This requires some advance of present day plasma physics, but would greatly simplify the fuel cycle. Pdf dense plasma focus dpf devices applications, which are intended to support the main. The conical zpinch with the vertex at f propels the plasma forward as a focused or a well collimated jet. Plasma jet drivers for magnetoinertial fusion pjmif. The dense plasma focus device enables fusion reactions. What is the dense plasma focus, and how does it work to achieve nuclear fusion. Prospects for p11b fusion with the dense plasma focus. Homepage forums dense plasma focus dpf science and applications this forum has 168 topics, 1,639 replies, and was last updated 10 months, 3 weeks ago by plasmalord. Dense plasma focus project gutenberg selfpublishing. International centre for dense magnetized plasma, warsaw. Theory and experimental program for pb 11 fusion with the.
It also produces dense concentrations of hot plasma, or plasmoids. Dense plasma focus dpf device is a pulsed power source used in nuclear fusion reactions. Construction and physics of the dense plasma focus. Essentially this approach can be summarized as follows. A dense plasma focus dpf is a machine that produces, by electromagnetic acceleration and compression, a shortlived plasma that is hot and dense enough to cause nuclear fusion and the emission of xrays and neutrons. Lppfusion is developing a new energy source, modeled on fusion energy that powers our sun. Experimental setup to clearly distinguish between the radiation from the anode end and that from the plasmoids, we used a cylindrical anode with 6cmdeep recess at the pinch end fig. The plasma expands and accelerates around the inner electrode. Traditionally, dpfs can be categorized as mather and filippov types according to their anode aspect ratios a l 2 a, where l is the effective anode length and a is the anode radius. This is related to the work of lawrenceville plasma focus to develop cheap nuclear fusion. Dense plasma focus dpf device is a type of plasma accelerator that produces. Dense plasma focus laser produced plasmas lowtemperature plasmas 10 hz miniature pf portable neutron source 20 kj pf neutron source for material irradiation shortlived radioisotopes production coded aperture imaging of fusion neutron source xray emission studies for sxr microlithography magnetic nanopartilces and hardcoatings using plasma focus. Dense plasma focus from alternative fusion source to.
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