The NWNL Nuclear Toaster

Autonomous Fusion Reactor Bio-Sample Loader

From increasing the efficiency and power of the reactor, to experiments on the effects of radiation on biological samples, aspiring scientists at the Northwest Nuclear Labs (NWNL) have been working for the past few years with their student-built Farnsworth-Hirsch fusor reactor to do fascinating experiments. Though the one ton lead and cadmium radiation shield ensures the safety of student researchers, many of their upcoming experiments involves the irradiation of various samples within the radiation zone, requiring the strenuous process of turning off the device, lifting the radiation shield, lowering back down the shield, and turning the device back on.

To overcome this challenge, they looked to a team of robotics engineering students...

Inspired by custom 3D printers and autonomous machines in industry, our approach meets all of the specs outlined above while maintaining flexibility. Critically, the reliance on 3D printed components ensures affordability despite the highly custom nature of the device. Furthermore, the "bird-cage" structure serves as a convenient target for our research into the effect of high intensity neutron radiation on PLA plastics. Finally, smooth and precise motion is driven by high strength stepper motors operating at low loads, transferring motion via lead screw and timing belt systems with limit feedback. Lined with deck appropriate lead seals, the toaster is designed with radiation protection in mind, while software safe-guards confirms deck seal prior to reactor operation

Dedicated Project Website

Please see the website at the button below for a deeper breakdown of the project: