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Eddy Clifford Jerman (November 21, 1865 – September 13, 1936) was an American inventor and an early expert in the techniques of medical radiography.In the years that followed the discovery of X-rays, Jerman was one of the first people to focus on the details that created quality X-ray images, such as exposure and positioning.
Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.
The new rays came to bear his name in many languages as "Röntgen rays" (and the associated X-ray radiograms as "Röntgenograms"). At one point, while he was investigating the ability of various materials to stop the rays, Röntgen brought a small piece of lead into position while a discharge was occurring. Röntgen thus saw the first ...
The detectors for observing cosmic X-ray sources were X-ray proportional counters. The hard X-ray telescope operated over the energy range 7 - 550 keV. OSO 7 performed an X-ray All-sky survey and discovered the 9-day periodicity in Vela X-1 which led to its optical identification as a HMXRB. OSO 7 was launched on September 29, 1971 and operated ...
X-rays with energies less than 35 keV (5,600 aJ) cannot reach balloons. On July 21, 1964, the Crab Nebula supernova remnant was discovered to be a hard X-ray (15–60 keV) source by a scintillation counter flown on a balloon launched from Palestine, Texas, United States. This was likely the first balloon-based detection of X-rays from a ...
X-ray machine of Siemens und Halske from 1912 Two X-ray tubes. The Röntgen Memorial Site gives an insight into the particle physics of the late 19th century. It shows an experimental set-up of cathodic rays beside the apparatus of the discovery. An experiment of penetrating solid materials by X-rays is shown in the historic laboratory of Röntgen.
When conservators used X-rays to analyze Rembrandt’s 17th-century masterpiece “The Night Watch,” they discovered something unexpected under its surface: lead.
William Herbert Rollins (June 19, 1852 - 1929) was an American scientist, inventor, and dentist. He was a pioneer in radiation protection.Many of his inventions and investigations in medical radiography and photography have been ranked in importance with those of Thomas A. Edison, Elihu Thomson, and William J. Morton.