Smithsonian Report, 1948.—Trump PEATE 3 
The column and terminal structure of the 3-million-volt generator at M. I. T. 
with its tank removed. This generator produces voltages over 10 times higher 
than the standard voltage for deep X-ray therapy. Its radiation output, 
more penetrating than gamma rays of radium, is equivalent to several times 
the total world supply of that precious material. 
