Across
- 3. increasing ___ gives stronger x-rays
- 4. ___ and X-ray photons have no mass, no charge, and travel at the speed of light and skin cannot protect against it
- 6. The combined effect of the RAM decaying and the biological clearing of the material,
- 13. The activity of a radioisotope is based on the number of____of RAM per a unit of time.
- 16. decay mode of Cesium-137 and H-3
- 17. area of the target bombarded by the electrons at any moment in time, the exact point where the X-rays begin
- 18. Stage of ARS in which when body system effects start to appear
- 20. has delegated regulatory authority to the AF for the RAMs in its inventory through the USAF Master Materials License (MML).
- 21. Type of energy removal that involves the complete removal of orbital electrons
- 22. Type of energy removal where the electron merely jumps to a lower atomic energy level, to one of higher energy
- 23. ___has a benefit of reducing scatter radiation and improving the radiographic image
- 25. Process in which a nucleus emits radiation and transforms the unstable atom into a different nuclide to become stable.
- 26. Alpha particles are the ___penetrating of the radiations
- 27. increasing __ gives more x-rays
- 28. decay mode of Th-230, U-234/235/238, and Am-241
- 29. Radioactive ____is the amount of time needed for half of the “activity” to decay away.
- 30. Type of energy removal where arelatively fast-moving particle nears a nucleus and the attractive force alters its trajectory, causing it to slow down
Down
- 1. Stage of ARS in which the body outwardly expresses initial symptoms of exposure
- 2. Elements that are in an unstable state and trying to achieve ___.
- 5. Type of decay in which an atom’s nucleus sheds an alpha particle, changing it from one element to another.
- 7. Type of decay in which the splitting of a nucleus into at least two other nuclei that releases a large amount of energy
- 8. negatively charged filament that emits electrons when heated sufficiently
- 9. Type of beta decay in which a neutron in an atom’s nucleus turns into a proton, an electron, and an antineutrino
- 10. How many modes of decay are there?
- 11. Type of beta decay in which a proton in an atom’s nucleus turns into a neutron, a positron and a neutrino.
- 12. positively charged; attracts the electrons from the cathode and usually has a rotating disc that acts as a target for the electrons
- 14. elements that have unstable isotopes are___.
- 15. unstable combinations of isotopes are ____.
- 19. The predicable rate of RAM clearing the body
- 24. Stage of ARS in which the patient is relatively symptom free