Chapter 1 Key Terms
Across
- 3. Campaign created to provide radiologic technologists a full understanding of the sage operation of fluoroscopic devices on pediatric patients
- 7. SI unit of radiation exposure
- 9. Living tissue of animals and humans can be damaged by exposure to ionizing radiation
- 10. When a patient dose is predicted to or has actually substantially exceeded normal dose levels
- 13. This term is synonymous with the term ALARA
- 14. Radiation that produces positively and negatively charged particles when passing through matter
- 18. A subunit of the gray in the SI
- 19. The SI unit of measure for the radiation quantities, equivalent dose and effective dose
- 20. Energy that passes from one location to another
- 21. A subunit of the roentgen, a nonmetric unit likewise used for measuring the ionizing capability of radiation
- 22. The total electric charge of one sign per unit mass that x-ray and gamma ray photons with energies up to 3 million electron volts generate in dry air at standard temperature and pressure
Down
- 1. The campaign includes dissemination of information on pediatric CT dose reduction among the various medical specialties that refer patients for CT examinations or even operate their own CT scanners
- 2. The campaigns objective is lowering the amount of radiation used in medically necessary imaging studies and eliminating unnecessary procedures
- 4. A partnership of medical societies whose overall common purpose is to reduce dose for pediatric patients
- 5. Method to compare the amount of radiation received from a radiologic procedure with natural background radiation received over a specific period
- 6. Effective measures employed by radiation workers to safeguard patients, personnel, and the general public from unnecessary exposure to ionizing radiation
- 8. The probability of injury, ailment, or death resulting from an activity
- 10. The amount of energy per unit mass absorbed by an irradiated object
- 11. The degree to which a diagnostic study accurately reveals the presence or absence of disease in the patient
- 12. Precept holding that occupational exposure should be kept "as low as reasonably achievable"
- 15. SI unit of absorbed dose and air kerma
- 16. A subunit of the sievert
- 17. Quantity that is used for radiation protection purposes to provide a measure of the overall risk of exposure to humans from ionizing radiation