Cameron Recknagel and Evan Pease are assembling a vacuum chamber for an experiment in plasma generation in the microwave lab. The gas in the chamber is subjected to a high microwave field which causes an avalanche of ionization events. Cameron will analyze the optical emission spectra to understand the role of collision frequency on the …
Category Archives: News
Nuclear group at NSCL
The experiment on 21C is currently in unscheduled off as some repairs are made to the cyclotron here at the National Superconducting Cyclotron Lab. In one picture we see Eric working on some data analysis while waiting for the beam. The other picture shows that he is actually the experimenter-in-charge for the experiment (upper right …
Surface Lab
Research in Jenny Hampton’s Group (the Surface Lab) started this week. Here is Nick Wozniak working on some analysis that was left over from his work during the spring semester. He is characterizing the Teflon electrochemical cell that was designed last summer for doing electrochemistry on wafer samples. Alyssa Frey, a student from UW-Eau Claire, …
Friday Afternoon Progress in the Nuclear Group
Here is Matt after a good day of IBIL and PIXE on various mineral grains (zircons, etc.) The ion source is cooling and he is cleaning his sample holders. Eric made this great plot to help us understand the properties of the fragments from the decay of 13Li, 12Li, and 9He. Each of these unstable …
Continue reading “Friday Afternoon Progress in the Nuclear Group”
Night Sky
Last night May 20, we took some spectra of some stars in our chosen favorite constellations. Using mercury emission lines to calibrate our spectra, we produced the following spectra for the indicated stars. Note the characteristic Balmer series of hydrogen absorption in Regulus.