Term
| A bundle of energy is the definition of a(n)? |
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Definition
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| Electromagnetic energy travels in a pattern that looks like a? |
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Definition
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Term
| With Electromagnetic energy what is always constant? |
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Definition
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Term
| Types of ionizing electromagnetic energy include: |
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Definition
| X-ray, Gamma rays and high energy UV light. |
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Term
| Radiopaque materials ______ photons, while radioluscent materials _______ them. |
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Definition
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Term
| An object that can always accept electric charges and is therefore required for a "safe" circuit when dealing with high voltages is called an: |
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Definition
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Term
| Unlike Charges______, while like charges______. |
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Definition
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Term
| The unit for electric potential? |
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Definition
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Term
| Any charged particle in motion will creat a(n) |
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Definition
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Term
| A device that changes electric current into mechanical motion is call a: |
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Definition
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Term
| Increasing beam restriction will: |
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Definition
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Term
| KVP is also known as the __________ of the beam. |
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Definition
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Term
| With increasing atomic numbers: |
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Definition
| absorption rates decrease |
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Term
| What are some examples of beam restricting devices? |
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Definition
| diaphragms, cones, collimator |
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Term
| The collimation device is used primarily to: |
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Definition
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Term
| The primary purpose of a grid is to: |
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Definition
| decrease scatter reaching the receptor |
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Term
| A grid should be used under what circumstance? |
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Definition
| if the part measures 10cm or greater, or if you are using over 60 KVP. |
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Term
| Something that is radiopaque will most likely |
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Definition
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Term
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Definition
| Stationary, focused and parallel |
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Term
| Name 3 types of grid errors: |
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Definition
| off-level, off focus, upside down |
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Term
| Any filtration that is found outside the tube and housing is called: |
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Definition
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Term
| A wedge filter is a good example of a _________ type of filter. |
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Definition
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Term
| The total amount of filtration for any unit that operates above 70 KVP must be at least: |
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Definition
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Term
| When filtration is increased, technical factors must be: |
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Definition
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Term
| The reduction of the quantity of photons in the beam after interacting with the patient is known as: |
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Definition
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Term
| Is producing another projectile electron a possibilitie of a x-ray photon when it exists the tube? |
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Definition
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Term
| The interaction that occurs within the patient that is similar to a characteristic interaction at the target is : |
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Definition
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Term
| A positron and a negatron are produced in: |
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Definition
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Term
| Scatter that travels back towards the source is called? |
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Definition
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Term
| As radiation passes through the patients body it undergoes? |
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Definition
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Term
| The greatest variable a radiographer faces is the |
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Definition
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Term
| A pathology that is difficult to penetrate is called a/an ____ condition |
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Definition
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Term
| A pathology that is difficult to pentrate is called a/an _____ condition. |
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Definition
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Term
Which of the following pathologies is not considered an additive condition?
A.) abscess
B.) edema
c.) ascites
D.) atrophy |
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Definition
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Term
Which of the following pathologies is not considered an additive condition?
A.) Atelectasis
B.) pneumonia
c.) emphysema
d.) empyema |
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Definition
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Term
Which pathologic condition involves a collapse of part or the entire lung?
A.) atelectasis
b.) pleural effusion
c.) hemothorax
d.) hydrothorax |
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Definition
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Term
Which pathologic condition involves the accumulation of fluid in the peritoneal cavity?
a.) edema
b.) renal calculus
c.) cirrhoisis
d.) ascites |
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Definition
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Term
Which pathologic condition involves fibrotic changes in the liver parenchyma?
A.) Cirrhosis
b.) acromegaly
c.) sclerosis
d.) ascites |
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Definition
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Term
| Which pathological condition involves a tumor arising in the bone and cartilage adding to subject density? |
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Definition
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Term
| What are the 2 types of geometric properties of image quality? |
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Definition
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Term
| Digital detail is determined primarily by? |
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Definition
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Term
| A lack of data caused by underexposure is called quantum mottle and is best fixed by: |
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Definition
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Term
| Decreasing your OID will: |
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Definition
| Decrease magnification and increase detail |
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Term
| Peristalsis is an example of: |
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Definition
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Term
| The 2 types of distortion are: |
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Definition
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Term
| The only 2 controllers of magnification are: |
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Definition
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Term
| The central ray should always be? |
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Definition
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Term
| If you angle "towards the patients head", this is termed: |
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Definition
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Term
| Most Positiong text book today use either 72" or ____" for standards |
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Definition
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Term
| What device measures voltage supplied to an x-ray circuit and adjusts that voltage to exactly 220v? |
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Definition
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Term
| I deal qualities for tabletops used in an x-ray imaging system would include: |
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Definition
| strong and supportive, absorbent of minimal x-radiation, floating top or motor driven. |
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Term
| The 3 main components of an x-ray system include the tube, console and: |
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Definition
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Term
| The process of changing AC current to DC current is done by: |
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Definition
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Term
| X-ray generator types include single pase, 3 phase and: |
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Definition
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Term
| Power ratings are measured in |
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Definition
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Term
| In which part of the tube does thermionic emission occur? |
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Definition
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Term
| The positive side of the x-ray tube is the |
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Definition
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Term
| The priniciple that states the effective focal spot is smaller than the actual focal spot is called: |
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Definition
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Term
| X-ray tube failure can result from: |
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Definition
| not properly warming the tube, 1 excessive exposure, not allowing the anode to cool. |
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