Question

20 multiple choice 1 point the problem of uneven image receptor exposure due the heel effect is solved by a
thoracus filter
compensation filter
k - edge filter
grid
21 multiple choice 1 point which one of the following compensating filters is used most commonly in the radiography of femur?
k - edge
wedge
trough
thoraeus

Explanation:

1. For the first question, the heel - effect causes uneven image receptor exposure and is corrected by a compensation filter. A Thorax filter is for chest imaging, a K - edge filter is for specific energy - related filtering, and a grid is for scatter radiation control.
2. For the second question, in femur radiography, the wedge filter is commonly used as it can compensate for the thickness and density variations of the femur. K - edge is for specific energy absorption, trough filters have different applications, and Thoraeus filters are mainly for chest - like applications.

Answer:

1. B. compensation filter
2. B. wedge