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exposure
(redirected from entrance exposure)

   Also found in: Dictionary/thesaurus, Medical, Legal, Encyclopedia, Wikipedia 0.01 sec.
Risk
The uncertainty associated with any investment. That is, risk is the possibility that the actual return on an investment will be different from its expected return. A vitally important concept in finance is the idea that an investment that carries a higher risk has the potential of a higher return. For example, a zero-risk investment, such as a U.S. Treasury security, has a low rate of return, while a stock in a start-up has the potential to make an investor very wealthy, but also the potential to lose one's entire investment. Certain types of risk are easier to quantify than others. To the extent that risk is quantifiable, it is generally calculated as the standard deviation on an investment's average return.

exposure

(1) In finance,the amount that one may lose in an investment;the potential loss,which could be the capital invested plus any personal liability on loans in excess of the value of the property securing the loans. (2) In the market, the process of making a property known to the marketplace as available for sale or lease.(3) Physically, the direction of an improvement;for example,“The southern exposure of the house had all the best views.”



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An ionisation chamber and electrometer (Nero 8000 mAx) calibrated at mammographic X-ray beam energies (with a calibration factor traceable to international standards) were used to measure the entrance exposure in roentgens.
4 mA, the automatic fluoroscopic entrance exposure rate was measured to be 35.
The letter stated the firm's diagnostic x-ray systems do not comply with the following items of the Performance Standard: "We measured the entrance exposure rate in the manual mode of the fluoroscopic system to be 27 roentgens per minute at the point where the center of the useful beam enters the patient.
 
 
 
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