Word: betatrons
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
...three minutes and 20 seconds while Laughlin nursed his controls. When the machine's electrical brain reported that the prescribed dosage of 100 roentgens had been delivered to the patient, it shut itself off. "O.K.," said Laughlin, "that's it." Thus the University of Illinois unveiled its betatron, the first of such power to be used in the U.S. for medical treatment.* Its advantage over earlier X-ray producers, most of which generate no more than a sixtieth of its power, is in the penetrating power of its high-speed, ultra-shortwave rays. Ordinary rays do most...
...betatron's first patient, who is 72, had cancer of the larynx, rooted about an inch beneath the skin. It was bigger than a golf ball and was spreading to the lymph glands in his neck. He had spent hours at a time racked by uncontrollable coughing. His sense of taste was gone. And he was losing weight. The cancer was too far advanced to be operated on. Unchecked, it would grow until it killed him by strangulation...
...Strang clinic (for prevention and early detection of cancer). Nearly finished: the $4,000,000 Sloan-Kettering Institute for Cancer Research. Also abuilding: a 300-bed municipal cancer hospital, which Memorial will operate. Among Memorial's ambitious plans: further additions, new equipment, a $200,000 Betatron (to be used for radiation treatments...
...General Electric's 100-million-volt betatron is not comparable, because it shoots much lighter particles (electrons...
...human proton-buster's problem: how to make a machine that approaches the power of a cosmic ray bullet. The most powerful machine in existence (General Electric's betatron) develops 100 million electron volts. Physicists now aim at one billion volts. The big news at Berkeley: they are getting warm...