Term
Give the traditional and SI unit for the measurement of radiation that ionizes air
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Definition
| roentgen (R) and couloumb/ kg |
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Term
| Give the traditional and SI unit for absorbed dose |
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Definition
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Term
| Give the traditional and SI units for the measurement that take into account the Weighting factor for diferent types of tissues. This uses LET plus a wieghting factor |
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Definition
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Term
| How is the tolerance in Kvp checked and what must this tolerance be within |
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Definition
| Wisconsin test casstte or digital, must be within 4 kvp |
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Term
| What is the tolerance for collimation |
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Definition
| must be within 2% of the SID |
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Term
| What is the tolernace of the effective focal spot size and how is it tested |
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Definition
| Slit camera, pinhole camera, star test pattern, 50percent |
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Term
How is the accuracy of the timer tested fpr a single phase generator
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Definition
| spinning top - the arch will fraction of time |
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Term
| How is the accuracy of the three phase generator tested |
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Definition
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Term
| This program involves all aspects of the radiology process |
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Definition
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Term
| What process involves and ensures only the safe and reliable operation of equipment |
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Definition
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Term
| What test ivolves using various mA, and time combos for a given mAs and may be used for testing adjacent mA stations. |
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Definition
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Term
| What must exposure linearity tolerance be within |
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Definition
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Term
| What does Exposure linearity use to test its tolerance |
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Definition
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Term
| What equipment will be used for a Exposure reproducibility |
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Definition
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Term
| What test will utilize kvp , mA and time controls for a given mAs and what is the tolerance |
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Definition
| Exposure Reproducibility , 5% |
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Term
| What tool is used to test AEC and verify reproducibility of exp |
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Definition
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Term
| How is Flouro exp rate tested |
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Definition
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Term
| What is the limit for entrance skin exposure |
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Definition
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Term
| What is is the image intensifier or automatic brightness control cheked for |
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Definition
| to ensure rad dose to input phosphor is constant |
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Term
| What tool is used to check resolutin of a television system |
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Definition
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Term
| The Actual Patient Dose as measured by a meter embedded in the collimator is called |
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Definition
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Term
| QA Dictates Cassettes should be cleaned and inspected how often ? |
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Definition
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Term
| QA Dictates that Cassettes should be erased how often |
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Definition
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Term
| Digital Imaging is Driven by |
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Definition
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Term
| What is the range of angles the grid can use called |
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Definition
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Term
| What is it called when brigthness is maintained over a wide range of exposures |
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Definition
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Term
What Law does this Equation Represent
mAs=mAs |
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Definition
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Term
| What is the Formula for the inverse square law |
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Definition
Iold/Inew=Dnew2/Dold2
I=intensity D= SID |
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Term
| What is the Density Maintenace formula and when is it used |
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Definition
mAs old/ mAs new = D old2/ D new2
Used for changes in SID to maintain density |
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Term
| What three factors Affect Subject Contrast |
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Definition
Atomic Number
Tissue Density
THissue Thickness |
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Term
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Definition
Height of the lead strips / distance of the lead strips =
H/D
4:1 -6:1 |
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Term
| What other terms are used for grid radius and what is its definition |
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Definition
focal distance , focal range
Distance at which the focused grid may be used |
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