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What is the unit of measurement for current of electrons that flow from the filament to the anode?

If a value if within the 68% confidence interval, this means that 68% of all values fall within _______

No acquiring enough stops (angular sampling) during a SPECT acquisition will result in which type of artifact on reconstructed images? 

The major cause of gamma camera non-uniformity is the underlying non-uniformity of the:

The QC test that measures a dose calibrators ability to read accurately over a wide range of activities is known as the _________  and it should be performed _______.

Which of the following acts passed by the U.S.  Congress tied Medicare reibursement to department accreditation? 

All of the following are daily QC tests on a CT system except: 

Calculate the correction factor for 364 uCi dose level if the expected value is 360uCi and the actual value is 352uCi. 

Which of the following will improve image contrast?

The path between two detectors in PET is referred to as: