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ROENTGEN PRELIM
| Question | Answer |
|---|---|
| Dr. Friedrich Otto Walkhoff | first to expose a prototype of a dental radiograph |
| Dr. William H. Rollins | dentistry's forgotten man Father of radiation protection |
| Dr. William J. Morton | skull radiograph impacted teeth radiographically |
| Dr. Charles Edmund Kells Jr. | put the radiograph to practical use in dentistry |
| Dr. William D. Coolidge | hot cathode tube (Coolidge tube) |
| Dr. Howard R. Raper | professor of radiology elementary and dental radiology Bitewing radiograph |
| Gordon Fitzgerald | long cone paralleling technique |
| Franklin McCormack | puts parallelling technique into dentistry |
| Weston Price | bisecting angle |
| study of technique | radiograph |
| study of interpretation | radiology |
| DDD | density of the degree of the darkness of the film |
| 2D representation of 3d objects | radiograph |
| difference between black, white and grey shadows | Contrast |
| number of protons | Atomic number |
| number of protons + neutrons | Atomic mass |
| Unstable isotope, Tends to release RADIATION in the process of trying to be stable | radioisotope |
| Letters in electron shells | KLMNO |
| letters in subshells | SPDFG |
| An electron goes to another shell then goes back, producing LIGHT as byproduct | excitation |
| When an electron gets deflected/leaves/removed away making the atom positive | ionization |
| Incoming electron interacts with the outermost electron shell, producing heat | HEAT PRODUCING COLLISIONS |
| incoming electron penetrates the outer electron shells and passes close to the nucleus | X-RAY PRODUCING COLLISIONS |
| Heart of the x-ray generating system | X-ray Tube |
| negatively charged electrode Produce electrons | cathode |
| responsible for the production of electrons when heated | Tungsten filament - |
| - directs the electrons towards the focal spot of tungsten target | Focusing cup / Molybdenum cups |
| positively charged electrode Converts the electrons to become x-ray photons | anode |
| - converts the electrons to become x-ray photons | Tungsten target |
| - good thermal conductor, reduces the risk of target melting | Copper stem |
| the branch of biology concerned with the effects of ionizing radiation on living systems | RADIOBIOLOGY |
| → organisms that cannot tolerate high level of ionizing radiation | RADIOSENSITIVE |
| → organisms that are capable of living in environments high level of ionizing radiation | RADIORESISTANT |
| → has the power to create charged ions by deflecting the electrons in an atom | IONIZING RADIATION |
| → has the power to change the position of the electron in the atom | NON-INONIZING RADIATION |
| Electrons move in predetermined circular or | elliptical shells |
| general radiation is also called | Bremsstrahlung |
Created by:
nixieee