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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
(photographer)
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.
Medium
Language
ProvenanceFrom the Toronto Star Archives
CollectionToronto Star Photograph Archive
Usage Rights Copyright (Learn More)
Copyright HolderToronto Star (Firm)
Call Number / Accession NumberTSPA_0057791F
Dr. Harold Johns, who developed the world's first Cobalt 60 high-energy radiation unit for cancer, steps down this week from the Ontario Cancer Instit(...)
Dr. Harold Johns, who developed the world's first Cobalt 60 high-energy radiation unit for cancer, steps down this week from the Ontario Cancer Instit(...)
6/27/1980
Tumor specialist: Dr. Rudy Falk, beside ba machine that helps destroy cancer cells with heat, treats 30 to 50 terminally ill patients day at his private clinic
Tumor specialist: Dr. Rudy Falk, beside ba machine that helps destroy cancer cells with heat, treats 30 to 50 terminally ill patients day at his private clinic
4/16/1990
Force of a blow: Dr. Alan Hudson, member of a committee that will conduct a study into whether kick boxing is dangerous, demonstrates the kind of force a fist can have to the head
Force of a blow: Dr. Alan Hudson, member of a committee that will conduct a study into whether kick boxing is dangerous, demonstrates the kind of force a fist can have to the head
2/22/1983
Helping patients
Helping patients
4/30/1984
Their favorite doc: Dr. Norman Jones is head and shoulders over some of the 500 patients and friends who turned out to honor him at the Cliffcrest Com(...)
Their favorite doc: Dr. Norman Jones is head and shoulders over some of the 500 patients and friends who turned out to honor him at the Cliffcrest Com(...)
5/10/1984
Doctor arrives: Dr. Norman Jones, 68, is welcomed as he makes a house call. Jones who admits he now prefers to see most of his patients in his office,(...)
Doctor arrives: Dr. Norman Jones, 68, is welcomed as he makes a house call. Jones who admits he now prefers to see most of his patients in his office,(...)
4/16/1987
Dr. Bernard Goldman, surgeon in charge of the balloon pump at Toronto General Hospital, says the device ''allows us to work safely on patients who jus(...)
Dr. Bernard Goldman, surgeon in charge of the balloon pump at Toronto General Hospital, says the device ''allows us to work safely on patients who jus(...)
2/24/1975
Image shows six men running while the doctor watches.
A group of cardiac patients jog around track at rehabilitation centre on Rumsey Rd., as Dr. Terrance Kavanagh, left, watches.
5/31/1973
Two leaders of a group of doctors who now extra-bill their patients say that if the government bans the practice, they will defy the law, pay the fine(...)
Two leaders of a group of doctors who now extra-bill their patients say that if the government bans the practice, they will defy the law, pay the fine(...)
3/18/1986
Dr. Guy Prouix, left, helps a group of amnesia patients improve their memories
Dr. Guy Prouix, left, helps a group of amnesia patients improve their memories
3/16/1993
Former patients: Shirley Johnson and Fred Serafino of Hamilton say they are piecing together their shock-shattered lives, years after having electro-convulsive therapy
Former patients: Shirley Johnson and Fred Serafino of Hamilton say they are piecing together their shock-shattered lives, years after having electro-convulsive therapy
12/16/1983
No human error: Assessment and elections clerk Candida Zeppieri demonstrates one of North York's new electronic voting machines, which will read and record ballots as they are inserted
No human error: Assessment and elections clerk Candida Zeppieri demonstrates one of North York's new electronic voting machines, which will read and record ballots as they are inserted
10/20/1987