Filtration in Radiography

These flashcards cover key vocabulary terms related to filtration in radiography, helping students understand essential definitions and concepts.

Filtration

The process of eliminating undesirable low-energy x-ray photons by inserting absorbing materials into the primary beam.

Inherent Filtration

Filtration that is a result of the composition of the x-ray tube and housing.

Added Filtration

Any filtration that occurs outside the x-ray tube and housing and before the image receptor.

Compensating Filter

A filter designed to solve problems involving unequal subject densities by adding an absorber.

Total Filtration

The sum of inherent and added filtration, excluding any compound or compensating filters.

Half-Value Layer (HVL)

The amount of absorbing material that reduces the intensity of the primary beam to one-half its original value.

Compound Filter

A filter using two or more materials that complement each other in absorbing capacities.

Thoraeus Filter

A specific type of compound filter used in radiation therapy that combines tin, copper, and aluminum.

Wedge Filter

A compensating filter useful for procedures on the thoracic spine and the feet.

Trough Filter

A compensating filter used to equalize density differences between mediastinum and lungs on a chest radiograph.