0
do you know about Penumbra calculation as its calculated from this?
Ug=FxT/D
Ug=Geometric Unsharpness
F= Source or Window Size
T= Object Thickness
D= Distance from source to the front surface of the Test Object.
Your Diagnostic film length is calculated from this.
Depending on what standards you work to they will tell you how many shots to do on what thickness of material as well as distance shot from. there is a chart that can be referenced but i can't remember what its called. i will try & find out but i hope this helps
Add your answer:
Earn +20 pts
What is the duration of Omar Khayyam film?
The duration of Omar Khayyam - film - is 1.68 hours.
What is Mohanlal's 100th film?
Pappan Priyappetta Pappan
What is the density of 20 micron metalized bopp film?
2.2
Which geometric shape has the highest surface area to volume ratio?
Answer: There doesn't appear to be a single best answer to this type of question. But if we're proposing simple shapes as answers, then a proportionally very thin film (like a sheet of paper) seems serve adequately. From what I have seen and gather, shapes with long length and width and a short depth would have a bigger surface area compared to its volume. in addition, shapes like cubes and spheres will have a greater volume for their surface area.
How many minutes in 400 feet of 16mm film?
At 24 frames per second, it is 11 minutes, 3 seconds and 16 frames
What is the device that holds radiographic film?
cassette
What are the sizes of the radiographic film?
10x12cm 24x30cm 30x40cm 34x43cm
Which radiographic projection has the patient positioned with the back parallel to the film?
anteroposterior
What kind of radiographic film is used for apical pathology?
Periapical Radiographs
What type of radiographic projection has the patient positioned facing the film and parallel to it?
A PA film has the patient facing and parallel to the film.
What layer of a typical radiographic film has sensitizing dyes that tailor the response characteristics of a given film?
phosphor
What is the density of an unexposed processed radiographic film?
The density of an unexposed processed radiographic film is typically very low, as the film has not been exposed to any radiation, resulting in minimal darkening or opacity of the film.
Which radiographic projection has the patient positioned so the body is slanted sideways to the film?
oblique
Comperism between geometric unsharpnes and radiographic unsharpness?
geometric unsharpness is fixed by setting the focal radius,etc. while radiographic unsharpness consists of both geometric and film unsharpness.
What is the relationship between film screen speed and radiographic density?
As film screen speed increases, radiographic density decreases. Faster film screens require less exposure to produce the same density as slower film screens. This relationship is important in balancing exposure settings to achieve optimal image quality.
Which term describes the part of the body closest to the film during a radiographic exposure?
The term is "anatomic landmark." It refers to specific structures in the body that radiologists use as reference points when viewing radiographic images.
What are the components of radiographic film?
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.
