Wile Fig: The Story Of Atoms And Radiation Physics
James E. Turner
Atoms, Radiation, and
Radiation Protection
1807–2007 Knowledge for Generations
Each generation has its unique needs and aspirations. When Charles Wiley first opened his small printing shop in lower Manhattan in 1807, it was a generation of boundless potential searching for an identity. And we were there, helping to define a new American literary tradition. Over half a century later, in the midst of the Second Industrial Revolution, it was a generation focused on building the future. Once again, we were there, supplying the critical scientific, technical, and engineering knowledge that helped frame the world. Throughout the 20th
Century, and into the new millennium, nations began to reach out beyond their own borders and a new international community was born. …show more content…
1.2 X-ray picture of the hand of Frau Roentgen made by
Roentgen on December 22, 1895, and now on display at the
Deutsches Museum. (Figure courtesy of Deutsches Museum,
Munich, Germany.)
1.3 Some Important Dates in Atomic and Radiation Physics
the story of ionizing radiation in modern physics. Roentgen was conducting experiments with a Crooke’s tube—an evacuated glass enclosure, similar to a television picture tube, in which an electric current can be passed from one electrode to another through a high vacuum (Fig. 1.1). The current, which emanated from the cathode and was given the name cathode rays, was regarded by Crooke as a fourth state of matter. When the Crooke’s tube was operated, fluorescence was excited in the residual gas inside and in the glass walls of the tube itself.
It was this fluorescence that Roentgen was studying when he made his discovery. By chance, he noticed in a darkened room that a small screen he was using fluoresced when the tube was turned on, even though it was some distance away.
He soon recognized that he had discovered some previously unknown agent, to which he gave the name X rays.1) Within a few days of intense work, Roentgen
Atoms, Radiation, and
Radiation Protection
1807–2007 Knowledge for Generations
Each generation has its unique needs and aspirations. When Charles Wiley first opened his small printing shop in lower Manhattan in 1807, it was a generation of boundless potential searching for an identity. And we were there, helping to define a new American literary tradition. Over half a century later, in the midst of the Second Industrial Revolution, it was a generation focused on building the future. Once again, we were there, supplying the critical scientific, technical, and engineering knowledge that helped frame the world. Throughout the 20th
Century, and into the new millennium, nations began to reach out beyond their own borders and a new international community was born. …show more content…
1.2 X-ray picture of the hand of Frau Roentgen made by
Roentgen on December 22, 1895, and now on display at the
Deutsches Museum. (Figure courtesy of Deutsches Museum,
Munich, Germany.)
1.3 Some Important Dates in Atomic and Radiation Physics
the story of ionizing radiation in modern physics. Roentgen was conducting experiments with a Crooke’s tube—an evacuated glass enclosure, similar to a television picture tube, in which an electric current can be passed from one electrode to another through a high vacuum (Fig. 1.1). The current, which emanated from the cathode and was given the name cathode rays, was regarded by Crooke as a fourth state of matter. When the Crooke’s tube was operated, fluorescence was excited in the residual gas inside and in the glass walls of the tube itself.
It was this fluorescence that Roentgen was studying when he made his discovery. By chance, he noticed in a darkened room that a small screen he was using fluoresced when the tube was turned on, even though it was some distance away.
He soon recognized that he had discovered some previously unknown agent, to which he gave the name X rays.1) Within a few days of intense work, Roentgen