An x-ray source is producing an entrance skin exposure of 3.1 mSv per hour at 10 cm from the source. What is the entrance skin exposure at 15 cm from the source?

Performing a routine chest radiograph in the anterior-posterior (AP) projection will

The anode heel effect is caused by:

A radiographic technique chart recommends 4 milliampere-seconds (mAs) and 68 kilovoltage peak (kVp) at 72 inches for a certain procedure. How will the receptor exposure be affected if the radiograph is performed using the recommended exposure technique but at 60 inches?

Shape distortion is related to a misalignment of, or angle present on, which of the following?

PART 2: Introduction to Diversity Indices (Measuring Diversity)   Using the table, calculate the total abundance in the community and the Pi value for each species. Next, calculate the natural log of Pi for each species (ln(Pi)) and then multiply the two columns to calculate Pi * ln(Pi). Limit your numbers to three decimal places. The Wildebeest has been given as an example for you.  Create your own table by clicking “Insert” and “Table” (You can also copy and paste the empty table and edit it). You are allowed to use a scientific calculator to solve the mathematical problems.  Pi = species abundance/total abundance in the community ln = natural log Species Species Abundance Pi  ln(Pi)  Pi * ln(Pi) Wildebeest 2 0.027 -3.624 -0.097 Elephant 3                                                 Zebra 5                                                 Hippo 1                                                 Impala 6                                                 Lion 3                                                 Baboon 17                                                 Warbler 22                                                 Crane 16                                                 Total abundance in the community   Start here                                                   H                

The area of the x-ray beam projected towards the patient is described as the:

An x-ray source is producing an entrance skin exposure of 3.1 mSv per hour at 10 cm from the source. What is the entrance skin exposure at 15 cm from the source?

kVp is the controlling factor for:

If an initial exposure is made using 800 mA, 0.02 sec, 16 mAs, 70 kVp, 58” SID, 4 “ OID, 5:1 grid ratio, 0.2 mm focal spot and 3.0 mm of filtration, with a 14 x 17 in field size, and the technologist changes the mAs to 5 for a second exposure without changing any other factors, what differences would you expect to see in the second exposure?1) Increased IR exposure2) Decreased IR exposure3) Increased contrast4) Decreased contrast5) Increased spatial resolution6) Decreased spatial resolution7) Increased distortion8) Decreased distortion