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24 Cards in this Set
- Front
- Back
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Wilhelm Conrad Roentgen, a German physicist, discovered the x-rays that were being emitted by the Crookes tube on: |
November 8, 1895 |
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He kept observing light being emitted from a chemical compound . using___ |
(using barium platinocyanide paper) |
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When discovered, x-ray use in medicine was immediately used in___ |
diagnosis and therapy |
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Nearly two weeks after his discovery, he took the very first picture using X-rays of his wife's hand, Anna Bertha. It took ___. When she saw her skeleton she exclaimed "I have seen my death!" |
15 minutes of exposure |
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3 Advancement of technical hardware-like layers on a cake….what are they? |
1. Electricity- power source needed 2. Vacuums- holds electrons inside 3. Image recording materials |
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an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude. called a ___ |
Barometer |
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who invented the baraometer? |
Evangelista Torricelli |
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who invented the vacuum? |
Otto van Guericke, Robert Boyle, and Herman Sprengel |
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who developed interrupterless transformers that provided the necessary electricity for x-ray production |
H.C. Snook |
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who designed the “hot cathode” x-ray tube |
William Coolidge |
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who demonstrated the radiographic use of fluorescent screens? |
Michael Idvorsky Pupin |
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who contributed greatly to radiology by discovering the use of calcium tungstate & credited to the discovery of Fluoroscope? |
Thomas Edison |
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who is this person? -Edison’s Assistant (lab worker) aka “x-ray tech”-Glassblower -1st recognized x-ray fatality -Tested x-ray equipment on his own hands -1st x-ray “burns” to turn into cancer and spread |
Clarence Dally 1865-1904 (39 years old) |
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first documented medical use of x-ray in the U.S.Exam of a boy’s fractured wris. on what date?and where? |
February 1896, Performed at Dartmouth College |
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who is this person? Nobel Prize for Chemistry in 1911 -Radioactivity -First mobile equipment during WW I |
Marie Curie |
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The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with ___ paint |
glow-in-the-dark |
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what are the 4 basic requirements for the production of x-rays? |
1. A vacuum (x-ray tube) 2. Electron source (filament) 3. A target for the electrons (anode) 4. A high potential difference (voltage) between the electron source and the target (opposite charges attract) |
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what is the smallest unit of EM energyQuanta – bundles? |
photon |
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Travels in straight lines at the speed of light. this is an example of ___ |
Characteristics of Radiation |
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the x-ray tube produces >___%heat, <___% xray |
99,1 |
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Grids and Bucky's absorb ___% of scatter radiation |
90 |
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Primary Function of ___and ___: increase radiographic contrast by reducing scatter radiation fog |
grids and bucky's |
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The ___ image is obtained depending on the type of IR |
manifest |
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The xray photon that exits the patient strike the IR to create ___image |
Latent |
