Nuclear Medicine

Principle of Nuclear Medicine

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Across 1. this process refers to the pulling of eluate off of a generator 3. electrons are slowed down during this process 5. time it takes the body to get rid of radioactivity 10. used to produce short lived radionuclides 15. this product is produced by an accelerator (cyclotron) or is a by-product of nuclear fission 16. linear energy transfer 19. time it takes for half of a radionuclide to decay 20. half life of 2.8 days 22. incoming photon must have an energy greater than 1.02 MeV 24. occurs in the inner most shell 27. an electron gets ejected from the atom 33. used to indicate that different types of radiation have different effects in humans 37. this radioisotope has a half-life of 78 hours 38. two .511 MeV photons 39. total effective dose equivalent 41. the simplest of all atoms; also called a protium 42. as low as reasonably achievable 44. this process is used to assess a drug's safety and effectiveness before making it available to the public 45. B- and B+ are given off in this interaction 47. same mass number

Down 2. same number of protons 4. method of separating different substances through the use of a solvent passing over a stationary phase 6. number of protons determines this product 7. also known as cardiolyte 8. lidofenin, disofenin, and mebrofenin are used to image this organ 9. nuclear regulatory commission 11. radiation produced outside the nucleus 12. food and drug administration 13. radiation that is produced inside the nucleus 14. specific ionization 17. this element same molecular properties as alpha 18. thallium decays by this method 21. macro aggregated albumin 23. positron emission tomography 25. number of waves per unit time 26. thickness of any particular material necessary to reduce the intensity of radiation to half of its normal value 27. process of removal of an electron from an atom 28. process of converting one element into another 29. occurs in the outer most shell, resulting in secondary radiation 30. A.K.A. HMPAO 31. this pharmaceutical is boiled 32. the distance from the top of a wave to a subsequent wave 34. a negatively charged particle 35. same number of neutrons 36. .15 uCi of Mo99 per one mCi of Tc99 in a generator eluat 40. original radionuclide in any decay method 43. radiation absorbed dose 46. A.K.A. white blood cells

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