

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
xray grid importance structure properties and types of grid
Typology: Lecture notes
1 / 3
This page cannot be seen from the preview
Don't miss anything!
A cassette is a rectangle metal container Whis is help to transport the exposure and non exposure film in darkroom. The cassette is light proof rigid Device. The cassette always hinged one side and opened other side. The side where is the latches is back side and other side facing the patient is called front side. The front side is made of plastic or carbon fiber, these have low atomic number. The back side is made of metal or lead sheet. The back of lead sheet protect from the scattered radiation. The cassette back side, there is window to provide the patient ID. The cassette are used in conventional screen film and Computed radiography (CR) system. The cassettes are provided a pairs of intensifying screen and the x-ray film keep between the pairs of intensifying like sandwich. The cassettes are available in different size like 14×17, 15×12, 14×14, 12×12, 12×10, 10×8, 12×6. Types of cassettes. There are following types of cassettes. A) Single intensifying screen cassette. B) Double intensifying screen cassette. C) curved cassette. D) Gridded cassette. E) Multi-sectional cassette. F) Film charger cassette. A) Single intensifying screen cassette :- The single intensifying screen cassettes are designed to used only single side emulsion film. It is used in only mammography. B) Double intensifying screen cassette :- The double intensifying screen cassettes are designed to used double emulsion film. It is used in conventional radiography. C) Curved cassette: – The curve cassettes are designed for those examination in which conventional cassettes are not adequate. Such as tunnel view of knee, head of humerus and any additional position that increased body part and film distance with standard flat cassette. It is curved
like structure. It is two types one is used when necessary close object cassette and other is used to panoramic view cassette. D) Gridded cassette :- The cassette constructed with the grid is call Gridded cassette. The grid are present between the front intensifying screen and the front of the cassette. This cassette is used for radiography where the a conventional buck system is not present. Basically it is use in ward radiography. E) Multi-sectional cassette: – The multi – sectional cassettes are used in manly Tomography. This cassettes are designed to hold 3-7 film with their respective intensifying screen and spacers. The spacers is 5- 10 mm in thickness. The specers are made of radiolucent foam sponge. The 5 mm spacers are produced 5 mm section of body parts. The 10 mm spacers are produced 10 mm section of body parts. F) Film charger cassette:- The charger cassette is used in angiography procedures. The cassette has charge device series. Care And Maintenance Of x-ray Cassette. The cassette if used by care the cassette will survive many year and protect from damage and other problems.