Medicine: X-Rays in Chicago

Several dozen U. S. hospitals have X-ray machines transforming 400,000 volts of electricity into X-rays for the treatment of cancer. Half-a-dozen have machines ranging from 600,000 to 1,200,000 volts. Last week the man most responsible for the development of vacuum tubes which accomplish those tremendous transformations of energy, Dr. William David Coolidge of General Electric Co., reminded the Fifth International Congress of Radiology in Chicago that Massachusetts Institute of Technology has a 5,000,000-volt generator which could be adapted for X-ray work, told them that an experimental 10,000,000-volt generator exists, promised them...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!