Image performance in CRT displays Chapter 9. Window and level: 9.1. Brightness and contrast review; 9.2. Window width and window level; References Chapter 10. Overview of CRT raster display: 10.1. Sync signals; 10.2. Video signal distortions; 10.3. High voltage source; 10.4. Interlaced and sequential scan; 10.5. Geometric distortions; 10.6. Digital versus analog control Chapter 11. Image quality control and maintaining performance: 11.1. Bundled quality control solutions; 11.2. IMAGE Smiths VeriLUM; 11.3. DOME imaging TQA Appendix Index Introduction Chapter 1. CRT glass: 1.1. Color glass; 1.2. Monochrome glass; 1.3. Glass as an insulator; 1.4. Usable area; 1.5. Contrast enhancement; 1.6. X ray compliance; References Chapter 2. CRT architectures: 2.1. Color CRT mask; 2.2. Monochrome CRT; 2.3. CRT mechanicals and safety system Chapter 3. Electron optics: 3.1. Basic structures; 3.2. Lower gun structure (Triode); 3.3. Upper gun structure (Lens); 3.4. Cathode selection; 3.5. Focus considerations; References Chapter 4. Phosphors: 4.1. Phosphor efficacy; 4.2. Phosphor aging; 4.3. Phosphor spatial noise; 4.4. Phosphor screen weight; References Chapter 5. Generating the pixel: 5.1. The Gaussian pixel; 5.2. Raster addressability ratio (RAR); 5.3. Control of the pixel; 5.4. Dynamic response as a system; References Chapter 6. Luminance uniformity: 6.1. Sweep circuit contributions; 6.2. Beam landing angle; 6.3. Focus and current density; 6.4. High voltage stability; 6.5. Compensating for nonuniformity; 6.6. Considerations on performance; References Chapter 7. Test patterns and how to read them: 7.1. The SMPTE test pattern; 7.2. Briggs test pattern 4; 7.3. AAPM quality control test patterns; 7.4. Additional test patterns; References Chapter 8. Video cards and image quality: 8.1. Video card basics; 8.2. Eight bit versus ten bit internal; 8.3. Pixel formats supported; 8.4. Connections; 8.5. Calibration of display and card; References This tutorial fully explains cathode ray tube (CRT) based displays in a single easy to understand narrative. Detailed explanations and insights into performance properties and safety limits of the various glass melts follow a discussion of the fundamentals. In addition other topics covered include the architectural differences between color and monochrome the cathode (electron beam source) as a failure mode for all CRTs types of cathodes available and their life expectancy. Phosphors the metrics involved in defining a pixel and how distortions can influence the net results defining CRT compliance with the DICOM Grayscale Standard Display Function (GSDF) test patterns and how they provide information about display performance and video cards round out this informative work