A High-Intensity Source of Long-Wavelength X Rays

Earlier reports on investigations of bactericidal effects and photochemical effects of X rays indicate a need for much higher intensity of radiation for such investigations. This paper discusses the design of an X-ray tube which combines high input energy, the X-ray transparency of beryllium, and close proximity to the target to make available radiation intensities of several million roentgens per minute. An experimental tube which makes such intensities available over a 180-degree solid angle is described. Methods of application to bactericidal and X-ray photochemical research are suggested.