The higher the atomic # (Z) of a part or substance, the _______ the number of photoelectric interactions.

Bone has a higher atomic # than soft tissue, therefor bone will:

Select either the correct beam restrictor for the following.  Answers may be used more than once; only once correct answer per question.

As collimation decreases (field size opens), the quantity of scatter radiation:

State if the following statement is either True or False.  THEN … explain why:   (2 pts) “Scatter radiation adds unwanted density to the image, that is unrelated to patient anatomy.”

The BEST place for a technologist to stand during a portable chest exam, in order to lower occupational dose, is:

Compton radiation:

Scatter is primarily the result of ________ interactions.

Which of the following are considered to have a high atomic # (Z) ?  may be more than one correct answer; select all that apply

Tess is taking an AP Lumbar spine image and does not apply collimation.  Dawn is also taking an AP Lumbar spine image, but applies adequate side-to-side collimation.  Which of the following is true regarding Dawn’s image?