Half-Value Layer (HVL)is Used to Measure

question 55

Multiple Choice

Half-value layer (HVL) is used to measure

• A)beam intensity
• B)beam quantity
• C)beam quality
• D)all of the above

---

Definitions:

Matched Pairs Experiment

A study design in which subjects are paired based on certain characteristics, with one subject in each pair receiving the treatment and the other serving as a control.

Observational Study

A study in which the researcher observes and records information on subjects without influencing the study outcome.

Anecdotal Evidence

Information based on personal accounts, observations, or stories rather than hard data or scientific research.

Observational Study

A research method where the investigator observes subjects and measures variables of interest without assigning treatments to the subjects.