Term
| A good way to describe energy in any form is: |
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Definition
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| An example of electromagnetic radiation is: |
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Definition
| UV Waves, radiowaves, heat |
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Term
| All of the following describe the ALARA principal except ? |
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Definition
| dose does not matter as long as there is benefit |
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Term
| Gamma rays and x-rays have the same origin T/F |
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Definition
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Term
| materials that will absorb radiation such as bone and metal are called ? |
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Definition
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Definition
| energy emitted and transferred through space |
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Term
| Radioactive half-life is: |
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Definition
| time required for radioactivity to reach one half its original value |
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Term
| Roentgen originally identified x-rays as: |
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Definition
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Term
| Stable atoms with the same number of protons and electrons but different number neutrons are called ? |
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Definition
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Term
| The principal difference between mass and weight is ? |
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Definition
| mass is the equivalent of energy, weight is the force exerted by gravity |
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Term
| The proton and electron are two of the fundamental particles of an atom the third on is? |
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Definition
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Term
| The Roentgen (R) unit of measurement relates to: |
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Definition
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Term
| The statement that "matter can neither be destroyed nor created "is also known as the _______________. |
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Definition
| law of conservation of matter |
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Term
| Which of the following items is considered to be matter ? |
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Definition
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Term
| Which of the following is an example of kinetic energy? |
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Definition
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Term
| Which of the following is a unit of radioactivity? |
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Definition
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Term
| Which of the following is not a fundamental particle ? |
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Definition
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Term
| Which of the following persons is responsible for the atomic model we use for radiologic physics ? |
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Definition
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Term
| Which of the following will travel the least amount of distance in tissue? |
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Definition
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Term
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Definition
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Term
| The ______ is the area on the target that is bombarded with electrons. |
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Definition
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Term
| The filament is usually constructed of this type material due to its high melting point. |
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Definition
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Term
| The leakage radiation that is produced during isotropic emission is mostly eliminated by _______. |
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Definition
| glass/metal envelope; protective housing |
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Term
| The negative side of the x-ray tube that contains the filament and the focusing cup is called? |
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Definition
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Term
| The X-Ray production is a very inefficient process with 1% of energy that will turn into radiation and the rest will be lost in heat energy. T/F |
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Definition
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Term
| When a projectile electron is slowed by the electric filed of the target atom nucleus avoiding any interaction with the target electrons, and producing a low energy beam it is called _______. |
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Definition
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Term
| Which of the following is not one of the five x-ray interactions with matter ? |
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Definition
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Term
| Fog seen on the film is usually the end result of which interaction ? |
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Definition
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Term
| The xray image is created by differential absorption T/F |
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Definition
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Term
| Which of the following statements best describes this image ? (image) |
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Definition
| ionization of the target atom, change in direction, and reduction of photon energy |
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Term
| During photoelectric interaction : |
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Definition
| an electron is emitted; the incident photon reappears as a photoelctron with reduced energy |
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Term
| The primary purpose of the flouroscopic examination is to visualize |
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Definition
| motion of internal organs |
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Term
| The ideal beam is to have all x-rays of the beam one energy and this is called ? |
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Definition
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Term
| Which of the following is true reagrding x-ray production |
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Definition
| extremely inefficient 1% xray production and 99% heat |
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Term
| The primary purpose of a flouroscopic examination is to visualize |
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Definition
| motion of internal structures |
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Term
| Which of the following is responsible for delivering contrast tot he vessel during the angiography ? |
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Definition
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Term
| Added filtration will increased the x-ray quality but reduce the quantity T/F |
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Definition
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Term
| All of the following are properties of the anode except? |
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Definition
| generates heat; is the negative side of the tube |
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Term
| All of the following describe a quantum except? |
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Definition
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Term
| The definition of long term exposure is: |
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Definition
| injury or death observed after months or years of exposure |
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Term
| What is the goal or radiobiology? |
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Definition
| study the effects of ionizing radiation on tissues; conduct study so radiation can be used more safely; develop dose response realtionships |
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Term
| Which of the following is not a concept described by the Law of Bergonie and Tribondeau? |
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Definition
| stem cells are less radiosensitive |
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Term
| A radiation dose delivered over a long period time at a low rate is less damaging T/F |
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Definition
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Term
| Which of the following best describes the oxygen effect? |
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Definition
| well oxygenated tissues is more radiosensitive |
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Term
| The following statement " radiologic biology suggest that a little bit of radiation is good for you " is called |
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Definition
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Term
| Which of the following is considered a macromolecule? |
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Definition
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Term
| If radiation of the DNA molecule occurs he effects could be chromosone damage, cytogenic dmamage, or no damage at all. T/F |
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Definition
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Term
| If a target such as DNA is ionized by a free radiacl it is called a |
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Definition
| indirect effect (ionized by FREE RADICAl instead of x-ray) |
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Term
| All of the following are events/deaths of acute radiation syndrome except? |
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Definition
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Term
| An immediate response of radiation sickness is called the ? |
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Definition
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