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Revolution: Dr. Harold Johns demonstrates the high-energy radiation unit he developed. It took 60 minutes to treat patients with 200,000-volt machines(...)
Revolution: Dr. Harold Johns demonstrates the high-energy radiation unit he developed. It took 60 minutes to treat patients with 200,000-volt machines(...)

Revolution: Dr. Harold Johns demonstrates the high-energy radiation unit he developed. It took 60 minutes to treat patients with 200,000-volt machines(...)

Date6/27/1980
Names
Format
Notes
Original Toronto Star caption: Revolution: Dr. Harold Johns demonstrates the high-energy radiation unit he developed. It took 60 minutes to treat patients with 200,000-volt machines, his Cobalt 60 - capable of 3 million volts in a 10-minute treatment - made the old machines obsolete overnight.
Language
ProvenanceFrom the Toronto Star Archives
Usage Rights Copyright (Learn More)
Copyright HolderToronto Star (Firm)
Call Number / Accession NumberTSPA_0057791F