The larger the silver halide crystals are, the higher the films speed rating will be. The film will also be easier to overexpose.
Emulsion paper is typically made from a base paper coated with a layer of light-sensitive emulsion, which consists of gelatin and light-sensitive silver halide crystals. The emulsion layer allows the paper to capture and store photographic images when exposed to light.
The word equation for photographic film is: Silver halide crystals + light → Silver metal + halide ions.
an emulsion of small particles of a photosensitive silver salt (Usually silver halide) suspended in gelatin
The "salt" you are referring to is actually called silver-halide and are more commonly known as "silver salts". When silver-halide crystals are exposed to light, they form a compound known as "metallic silver"
Are we doing your homework? It's A), and it's emulsion, not emulation
Yes, it is true that the two main purposes of a fixing solution in photography are to expose the silver halide crystals that have not been developed and to convert the remaining undeveloped silver halide into soluble compounds. This process ensures that only the developed silver crystals remain, turning them into a block of metallic silver, which is what creates the final image. The fixing solution effectively stabilizes the image, preventing further development and degradation.
substance
Radiographic film typically consists of an emulsion layer (containing silver halide crystals suspended in gelatin), a base (usually made of a flexible polyester material), and an overcoat layer to protect the emulsion. The film may also have an adhesive layer to adhere to the screens used in imaging.
The "salt" you are referring to is actually called silver-halide and are more commonly known as "silver salts". When silver-halide crystals are exposed to light, they form a compound known as "metallic silver"
Usually, either polyester or acetate substrates, coated with emulsion on the image side. In black and white film, the emulsion is a gelatinous substance containing silver halide grains that are sensitive to light. Color film emulsion contains silver halide in 3 layers with separation layers in between. The separation layers are designed to "channel" light to the proper layer, based on the color of the light. The sum of all the layers is thinner than a human hair! During development of color film, the silver is converted, then replaced with dye.
Silver nitrate is added to halide salts to test for the presence of halide ions. When silver nitrate is added, a precipitation reaction occurs where silver halide compounds are formed. The color of the precipitate that forms can help identify the type of halide ion present in the salt.
X-ray film is chemically sensitive film. It is created to react with the sourced light producing an image. It was made possible through the advances of Marie Curie and her studies of extracting radium from pitchblende.