John R. Dunning, Jr.
While at SSU from 1969 to 2006, I participated in our Applied Physics program for upper division students in the areas of X-ray Crystallography, Energy Dispersive X-ray using our scanning electron microscope and the applied nuclear program.
I helped specify our Rigaku theta-theta X-ray powder diffractometer, now located in the Keck Laboratory. Software purchased in 2003 from Materials Data Inc. directly controls the diffractometer. Very powerful analysis software, Jade 6.5, assists you to identify complex unknowns using the 2004 database from the International Centre for Diffraction Data.
During 2004-6 I developed a new low level nuclear counting facility to include alpha, beta and gamma counting. For gamma counting we have an intrinsic germanium gamma detector, digital signal processor, and powerful Genie software from Canberra. A Si(Li) alpha detection system measures the alpha activity on particulates deposited on air filter paper. Beta counting uses biology's Packard liquid scintillation counter (with Dan Crocker). This beta system has low background thanks to cosmic ray rejection software.
Some of my research projects at Sonoma State:
As the former Sonoma State University Radiation Safety Officer, I am pleased to talk with students about radiation safety.
My lifelong interest in abundant energy for all has given birth to an evolving course sequence. The latest in the sequence is: Innovations Shape America. Earlier courses were offered through Community Education at SRJC and Osher Lifelong Learning at SSU.