Thorium radiation source

thingiverse

Project was designed to restore my old gas lamp and supply a radiation source for DIY radiation detectors testing. To understand the connection between these topics, check out the links below. Making Process: 1. I collected an old broken gas lamp mantle with dirt and dust in a zip bag. 2. The dirty zip bag was placed inside another zip bag. 3. The zip bags were folded in half and put under a book to flatten them. 4. 3D-printing was started until the cavity bridging began. 5. Printing was paused, and I pushed the folded zip bags into the partially bridged cavity, then resumed printing. 6. When letter printing started, I paused printing again, changed the filament to brown, and finished printing. Notes: - Special pause commands were not used in this case. - I watched the printing closely and manually paused it to insert content or change the filament. - Interesting design challenge & solution: Q: How do you chamfer the edge of an internal cavity that's inaccessible by mouse selection? A: Switch to a wireframe model where you can see inside the object, then select the internal edge to chamfer. Further Readings: Wikipedia - Gas Mantle (en.wikipedia.org/wiki/Gas_mantle) - Gas Lighting (en.wikipedia.org/wiki/Gas_lighting) - Thorium Dioxide (en.wikipedia.org/wiki/Thorium_dioxide) - Thorium (en.wikipedia.org/wiki/Thorium) DIY Radiation Detectors - MightyOhm - Geiger Counter (mightyohm.com/blog/products/geiger-counter/) - Feed Your Geiger: Cheap and Readily Available Radioactive Test Sources (mightyohm.com/blog/2012/02/feed-your-geiger-readily-available-radioactive-test-sources/) - SmartFTLab - Smart Geiger (FSG-001) (allsmartlab.com/eng/smart-geiger/) - RH Electronics - MyGeiger (rhelectronics.net/store/mygeiger-3-pro-diy-dosimeter-ratemeter-radiometer-kit-with-lcd-usb.html) - Safecast - bGeigie Nano (https://safecast.org/devices/bgeigie-nano/)