Physics Nearpod Word Scramble
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| Question | Answer |
| What type of radiation is x-ray? | Electromagnetic radiation. |
| Which type of radiation is produced by the interaction of an incident electron with the nucleus of a target atom? | Bremsstrahlung |
| What determines the maximum energy level of a photon of characteristic radiation? | The binding energy of the electron shell. |
| What two types of ionization are predominant within the energy range of diagnostic radiography? | Photoelectric effect and Compton effect |
| What three end products always result from a photoelectric effect interaction? | A positive ion, a negative ion, and characteristic radiation. |
| The statement “like charges repel, unlike charges attract” represents which law of nature? | The law of electrostatics |
| A current carrying conductor that has been looped into many coils to enhance the strength of its magnetic field is called a | solenoid. |
| What are the two types of electromagnetic induction? | Self induction and mutual induction. |
| What is the positively charged electrode of an x-ray tube? | Anode. |
| Which half-value layer indicates the beam with the highest quality? (Take the question on face value. Therefore, if its not in the question don't add it!!!!) | 4 mm lead. |
| Which factors controls beam quality? | filtration and kVp |
| What is the relationship between mAs and receptor exposure? | mAs is directly proportional to receptor exposure. |
| Secondary photons are considered as New Photons? | True |
| An increase in the tube current (mA) will result in | an increase in the quantity of x-ray photons produced. |
| The use of higher kVp values will result in the production of photons with __________ wavelengths. | shorter |
| ____________________________ radiation is produced when a high speed electron removes an orbital electron of the target atom and another electron fills the vacancy. | Characteristic |
| The free electrons around the filament form a "space charge." | True |
| An x-ray beam transferring some of its energy to matter through which it is passing best describes | attenuation. |
| The transfer of all energy from an x-ray photon to the medium through which it is passing is best described as absorption. | True |
| After an ionizing interaction removes an electron, the atom will have an overall positive charge. | True |
| Photoelectric interaction results in ____________ of the photon energy being transferred to the orbital electron. | all |
| The photoelectric effect is most common in what kVp ranges? | Low (10-70 kVp) |
| Compton effect is most common in what kVp ranges? | moderate (70 kVp and above) |
| Which one of the following is a factor necessary for the production of X-radiation? | A source of free electrons |
| Most x-ray tubes are equipped with | two filaments |
| Which statement best describes the energy state of a photon that interacts by way of the photoelectric effect? | Total energy loss |
| Which statement best describes the energy state of a photon that interacts by way of the Compton effect? | Partial transfer of energy from photon to orbital electron |
| Which of the four interactions is classified as true absorption? | Photoelectric effect |
| An incident photon that changes direction after interacting with an atom is known as "photo-electric effect" | False |
| Compton scatter and photoelectric effect can both cause secondary ionizations. | True |
| Excessive anode heating can cause vaporized tungsten to be deposited on the port window. This can result in | 1. decreased tube output. 2. tube failure. 3. electrical arcing. |
| After a photon has under gone comptom scatter, how much energy will the photon retain? | 2/3 |
| For which of the following examinations can the anode heel effect be an important consideration? Lateral thoracic spine AP femur Right anterior oblique (RAO) sternum | 1 and 2 only |
| Which two interactions can create a cascading or domino effect to release photons? 1. PE 2. Compton 3. Characteristic 4. Bremsstrulung | 1 and 3 |
Created by:
DeAndreMitchell
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