Word: spect
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Dates: during 1940-1949
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...legion. The design includes some 180 sections, to provide constant accelerating steps of 12,000 volts each. The tube is completely sealed-off, like an ordinary radio tube, needs no pumping to maintain the high vacuum. It is compact, portable so that it can be used to in spect the insides of machinery installed anywhere. In therapeutic use its advantage is that of radium over ordinary X rays: its rays are so penetrating that they can destroy internal cancers without harmful effect on the skin and fleshy tissues...