Category Archives: Aneutronic and DPF

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FF-1 Upgrade Continues, Preparations Begun for pB11 Operation

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While FF-1 can’t fire until it gets the new tungsten cathode, the lab has not been sitting idle. The LPPF team has undertaken significant upgrades to the device, and started work on further ones. Other than a complete disassembly, cleaning and re-assembly of the vacuum chamber and drift tube to eliminate all sources of impurities,…

Tungsten Cathode Nears Completion after Long Delays

samllerelectrode

The long-awaited tungsten cathode is finally nearing completion in a Chinese factory.  According to the latest reports by California-based Tungsten Heavy Powder(THP), which is performing the work in China, machining will be complete within a few weeks and delivery to LPPFusion should occur by mid-February. The 99.95% pure tungsten piece has been in the machining…

Physics of Plasmas Publishes LPPFusion’s Runaway Electron Theory

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Physics of Plasmas, the leading journal in the field of plasma physics, has published LPPFusion’s new paper on “Runaway electrons as a source of impurity and reduced fusion yield in the dense plasma focus”. The paper, by Chief Scientist Eric J. Lerner and Chief Research Officer Hamid R. Yousefi, was published online October 22, 2014…

Tungsten Anode Goes Into FF-1; Aluminum Cathode Model Is Checked

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October 10, LPPFusion team members Eric Lerner, Hamid Yousefi and Tony Ellis lifted the tungsten anode into place on top of the FF-1 dense plasma focus experimental device (figure 1). The anode had previously been attached to its steel connecting plate (see September report) and was temporarily attached to a metal carrying rod for insertion…

Re-Assembly Begins of FF-1 with Tungsten Electrodes

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The new tungsten anode has a current connection with the silvered steel plate at the edge indicated to by the blue arrow.  This current connection is below the red O-ring (yellow arrow) that seals the vacuum chamber indicated by the black arrow.  The old current connection was at the location of the red arrow, inside the vacuum chamber…

Nature Magazine Urges More Funding for Aneutronic Fusion

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In a July 23 editorial, Nature magazine has joined the calls to redirect fusion funding to aneutronic fusion—fusion that produces no radioactive waste. Speaking of the difficulties facing the ITER tokamak program, the editorial urged that, “Given these realities, the prudent course for the world’s funding agencies would be to support research into alternative fusion…

Tungsten anode has arrived

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The first of LPP’s new tungsten electrodes, the anode, or inner electrodes, is now complete and has arrived at our Middlesex, NJ lab. The electrode will contribute to greatly reducing the impurities that have prevented high density in our fusion-generating plasmoids. First, it connects to the rest of the circuit outside the vacuum chamber, eliminating…

Digging in the Data—oscillations and x-rays

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The months that FF-1 is not running have given the LPP research team time to look more deeply at the hundreds of gigabytes of data that the experiments have been generating. One puzzle LPP Electrical Engineer Fred van Roessel looked at was the rapid oscillation in current and voltage that occurs when the machine fires…

LPP and PPRC collaborate on pre-ionization experiments

anode erosion

The FF-1 anode, which is plated with 0.001 inches of silver, shows a ring of erosion near the end of the insulator (which has been removed along with the cathode). On the right side, where deposits have been cleaned away, the copper color shows clearly where a ring of silver has been vaporized and measurements…