Fire in the Hole! – Pulsotron second test campaign

Targets 3001-3003 were tested. The main idea is to check if the plasma ball is contained inside the reaction chamber enough time to make ignition. Also, it was checked two sensors.

It was built carefully an array of photodiodes and electrical power of them carefully inserted in optical parts aligned with the plasma ball to measure accurately the expansion of the plasma ball. The whole system was mounted inside a small structure made in a 3-d injection machine. To maintain that instrument close to the plasma ball a structure was mounted, we name it  “diagnostic tower”. Unfortunately, in the first shot, the 3-d injection enclosure was destroyed and blown away in less than 50 microseconds, as can be seen in the high-speed video captures:

But it was a disaster as we needed the plasma ball expansion data, so we had to improvise, so we used a similar instrument made for Pulsotron-2, fortunately, its batteries still worked, then a new diagnostic tower was made in a hurry cutting extruded aluminum profiles. In the shot 3002, the old sensors were exposed to a lot higher light levels than the Pulsotron-2, so they were saturated, so it was increased the scope scale and tested again in test 3003 that was successful.

After the tests several megabytes of sensor data are now being processing