Röntgenifilme

Röntgenifilme, also known as X-ray films, are a critical component in traditional radiography. These films are coated with a light-sensitive emulsion containing silver halide crystals. When X-rays pass through a patient's body, they are attenuated to varying degrees depending on the density of the tissues. Denser tissues, like bone, absorb more X-rays, resulting in fewer X-rays reaching the film. Conversely, less dense tissues, such as soft tissues, allow more X-rays to pass through.

When the X-rays strike the film, they cause a chemical change in the silver halide crystals. After exposure, the film is developed using a series of chemical solutions. This process converts the exposed silver halide crystals into metallic silver, forming a visible image. Areas where more X-rays reached the film (less dense tissues) will appear darker because more silver has been formed. Areas where fewer X-rays reached the film (denser tissues) will appear lighter.

The contrast and detail of the X-ray image are influenced by the film's emulsion, the intensifying screens used in the cassette, and the processing chemicals. While digital radiography has largely replaced traditional film, röntgenifilme were the standard for medical imaging for decades, enabling the diagnosis of numerous conditions by visualizing internal structures. The handling and storage of these films required careful attention to prevent degradation and ensure the longevity of diagnostic records.