Category Archives: Aneutronic and DPF

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Preionization Tests Prepare for New Shots

The second main source of impurities in previous FF-1 shots has been vaporization of the anode material by runaway electrons. These high-energy electrons occur very early in the pulse, when the plasma has not yet become fully ionized—in other words, when only a few electrons are free to move outside of atoms. The cure for…

Bake-Out Succeeds in Cleaning Up FF-1

LPP Fusion’s research team successfully completed the bake-out of the FF-1 experimental fusion device during March, reducing the oxygen in the device by about a thousand-fold. The oxygen had been an obstacle in reducing impurities in the plasma that produces fusion reactions, because tungsten oxide and its compounds with hydrogen are easily evaporated into the…

FF-1 Moves Toward “Goldilocks” Bake-Out

LPP Fusion LOGO

LPPF Research Physicist Dr. Syed Hassan and Chief Scientist Eric J. Lerner continue to prepare FF-1 for the next set of experiments, which aim to rid the device of oxygen that has caused continued high impurity levels. A key step to doing this is a “bake-out” that heats the vacuum chamber and electrodes to drive…

Beryllium Arrives for New Electrodes

Two cylinders of nearly pure beryllium metal were delivered to LPPFusion’s Middlesex, NJ lab on January 14. The cylinders, weighing together 35 kg, are to be machined over the next five months into two anodes and a cathode for experiments in the second half of 2016. They were fabricated from 97.8% pure beryllium at the…

Vacuum Chamber gets Titanium Nitride Coating, New Window as Tests Near

As preparations for the next set of experiments accelerate, LPPFusion has received the newly coated vacuum chamber parts back from suppliers in Ohio and NJ. The parts have been coated with titanium nitride in order to minimize the oxygen in the chamber. On the one hand, the coating will act as a sponge soaking up…

Cooperation Aids Oxygen Elimination; Vacuum Chamber Getting Titanium Nitride Coating

With the help of scientific collaborators, LPPFusion’s team is moving towards eliminating the sources of oxygen in Focus Fusion-1’s vacuum chamber. The oxygen has been the key obstacle to progress in the experiment for the past several months. While the pure tungsten electrodes installed in June are highly resistant to being vaporized by the device’s…

Titanium Lining for Vacuum Chamber

To download this report click here Based on the results of test shots fired in September, LPPFusion’s research team has decided to line the vacuum chamber of the device with titanium or a titanium compound. While we cleaned oxides off the tungsten, these compounds have reappeared due to oxygen in the stainless steel chamber. After…

Oxides Removed From Tungsten Electrodes

oxide

As the research team had suspected, an oxide coating on the tungsten electrodes prevented the achievement in the first shots in June of the very low impurity levels needed for increased fusion yield. This oxide coating has now been substantially reduced or eliminated and the electrodes are ready for a new round of experiments. When…