|Description:||This historic image, published in the November, 1947 issue of ”Industrial Hygiene Newsletter”, was provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), and depicted two technicians performing a radiophotograph of a boiler weld, using a 400 kV X-ray, and large radiographic plates. Even today, radiographic analyses are still performed in order to reveal the presence of stress fractures in dense materials including metals and concrete. In this particular image the scenario showed one technician operating the controls, and the other, dressed in a business suite, who might have been an industrial hygienist, taking readings on contaminating radiation escaping from the test site.|
The NIOSH Historic Photo Collection began as the “picture file” of the Industrial Hygiene Division of the U.S. Public Health Service (USPHS), c. 1930-1960. It is a unique collection of mid-20th Century images of American workers and workplaces and documents occupational safety and health research of that era. The collection consists of approximately 1,000 original photographs and schematic drawings.