A | B |
Anode | The positively charged electrode in the X-ray tube where electrons collide and produce X-rays |
Cathode | The negatively charged electrode in the X-ray tube that provides the electron source |
Bucky (Potter-Bucky diaphragm) | A moving mechanism that houses a grid to reduce scatter radiation and improve image clarity |
Cassette | A light-tight container that holds the image receptor, such as film or a CR imaging plate. |
Collimator | A device attached under the tube housing that adjusts the size and shape of the X-ray beam. Often equipped with a light field for alignment. |
Control Console / Panel | Where the operator selects technique factors (kVp, mA, exposure time) and initiates exposure. |
Focal Spot | The area of the anode that emits X-rays; its size influences image sharpness. |
Grid | Positioned between the patient and receptor to absorb scatter radiation, enhancing contrast |
Image Receptor (IR) | Any device capturing the remnant radiation, such as film, CR plates, or DR detectors. |
Filter (Compensating Filter) | Attenuates low-energy X-rays (“beam hardening”) to reduce patient dose and improve image quality |
Radiographic Table | Supports and positions the patient. Modern tables may tilt, float, and adjust heights for accessibility. |
X-ray Generator | Supplies high-voltage power; modern systems often use high-frequency inverter generators for consistent output. |
Distortion & Magnification | Result from misalignment, increased object-film distance, or oblique beam angles |
PACS (Picture Archiving and Communication System) | Manages storage, retrieval, and distribution of imaging data |
Exposure Indicator | A numeric index that reflects the exposure level of a digital image. |