Which two materials can be used in the construction of the computed radiography (CR) imaging plate outer cassette?

The correct materials for constructing the computed radiography (CR) imaging plate outer cassette include plastic and carbon filter. Plastic is commonly used due to its lightweight, durable nature, and protective properties that shield the imaging plate from physical and environmental damage. The addition of a carbon filter can enhance image quality by reducing unwanted scatter and improving contrast.

In the context of materials used in CR imaging plate outer cassettes, other options present less suitable characteristics. Glass might provide protection but is heavy and fragile, making it impractical for a portable application like a cassette. Metal, while strong and durable, may interfere with the imaging process by adding unnecessary weight and potentially affecting image quality due to scatter. Wood and paper lack the durability and stability required for consistent performance in imaging environments, resulting in inadequate protection for the imaging plate. Aluminum and steel, while sturdy, often do not offer the necessary lightweight benefits and may also detract from image quality, similar to other metal options.