Microwave Lab

Candace Goodson is assembling a superconducting sapphire microwave resonator for her research on the effects that carrier doping has on the superconducting thin films. She uses the resonator to determine the critical temperature of the superconductor and to look at how the surface resistance of the superconductor depends nonlinearly on current. Both of these properties …

Nuclear Group

Tim Nagi tests some acrylic bars used as neutron detectors in the LISA project. He is using the oscilloscope to watch for signals coming out of one of the the photomultiplier tubes attached to the ends of the bars. Tim and others from Prof. DeYoung’s group will use the “LISA bars” at the National Superconducting …

Using the SEM

Earlier this week, the Surface Lab got training on the use of the new Scanning Electron Microscope. Daniel McNeel is working on cataloging the electrodeposited metal thin film samples that were fabricated last summer and this summer. Here Daniel runs the SEM, while Emily Berger helps, and Nick Wozniak looks for a specific sample to …

Surface Lab – Troubleshooting

At the beginning of week three of research, the Surface Lab discovered that the third of three existing reference electrodes has met an untimely end. What is supposed to establish a stable potential reference point is no longer doing so. (The other two have been broken for at least a week.) We borrowed the Fluke …