Across
- 5. Deposition of radioactive material in any place where its presence is not desired
- 7. Detects the high-energy, short-wavelength electromagnetic radiation emanating from the nucleus
- 9. Time required for disintegration of half of the original activity of a radioactive nuclide
- 10. Nuclides of the same element that have different atomic mass (neutrons) but the same atomic number (protons)
- 12. Type of atom whose nucleus disintegrates spontaneously
- 13. Device used to confine the elements of a beam within an assigned solid angle
Down
- 1. Single "snapshot" of target anatomy, also called static imaging
- 2. Helium nucleus that consists of two protons and two neutrons
- 3. Process by which radiation is reduced in intensity when it passes through some material
- 4. Device that measures radiation
- 6. Release of high-energy beta particles through disintegration of certain radioactive nuclides
- 8. Unit of radioactivity in SI (International System of Units)
- 11. Imaging system that uses one to three gamma detectors to produce tomographic images of an organ or structure