Measuring Radon | University of Illinois Archives
Photo of an engineering student working in a lab, taken for an annual summary produced by the General Engineering Department in 1964.
From the caption:
"A charcoal trap containing radon is placed in an electric furnace by research assistant S. Shimizu. The radon is released from the heated charcoal, and then measured by a photomultiplier."
From RS 11/1/12, Box 4, "General Engineering, ca. 1960-64", N. 594
scanned from the film negative