Discovery of x-rays

1234567891011121314151617181920
Across
  1. 2. a skilled German glassblower that invented the first vacuum tube made up of glass
  2. 4. A German dentist that took the first dental radiograph in 1896
  3. 6. Introduced the bisecting technique
  4. 9. A collision of a beam of electrons with metal target in an x-ray tube producing high energy radiation.
  5. 10. The study of radiation used in many fields in medicine that deals with the use of x-rays in diagnosing and treating of disease.
  6. 12. He is a Boston dentist that developed the first dental x-ray unit and even published the firsts papers on the danger associated with radiation.
  7. 14. he is the inventor of the bitewing radiograph in 1925.
  8. 18. A German physicist that is named a father of x-rays for his discovery of the x-rays.
  9. 19. He is known as the father of modern dental radiography that introduced the long cone paralleling technique in 1947
  10. 20. A new York physician that used a skull to make the first dental radiograph in the US
Down
  1. 1. A pioneer of oral and maxillofacial radiology. he was the first to use Kodak film in intraoral radiography
  2. 3. it is a portion of a structure in a radiographic image that permits radiation to pass through them making them appear dark.
  3. 5. it is a portion of a structure in a radiographic image that are absorbs and stop the penetration of the x-ray making them appear light or white
  4. 7. a beam of high energy that penetrates substances and structures and produce a image shadows on film.
  5. 8. It is a projection imaging technique on a film that is constructed by allowing the radiation be absorbed as it passes through an object or body structure.
  6. 11. A german physicist that observed tubes with energy rays extending from a negative electrode. These rays produced a fluorescence when they hit the glass walls of the tubes. the effect was later named "cathode rays".
  7. 13. A dentist in new Orleans that used a live patient to be exposed in the first dental radiograph
  8. 15. von Lenard, He observed that the absorption of cathode rays was, to first order, proportional to the density of the material they were made to pass through.
  9. 16. first prewrapped dental films
  10. 17. radiograph, Projection imaging technique on a film by allowing the radiation absorption through teeth and their related structures.