I set the ion trap oven to 30, 50, 100, 150 and 200C using data read from the thermocouple. At the current 40W power level (and in air rather than vacuum), it tops out at 220C. The cartridge heater is actually rated to 250W with a higher voltage, which might get me closer to the range where calcium starts to give off vapour. The chart below shows an hour in total with 1 minute grid. #physics<p><a href='posts/202605/post-20260514-223353-a.jpeg'><img src='posts/202605/post-20260514-223353-a.jpeg' loading='lazy' /></a></p>