Write a detailed definition of each of the following terms and provide an example of the term or how it would be used. Your example should demonstrate an understanding of the term and/or the role it plays in quality control/assurance.

1. Detective quantum efficiency
2. External beam evaluation
3. Quality assurance
4. Quality control
5. Quality management
6. Total repeat rate
7. SMDA
28. MQSA
29. FDA
30. JCAHO
31. Line par resolution
32. Star test pattern
33. Pinhole camera
34. Half value layer
35. Wire mesh test
36. AEC
37. PACS
38. RIS
39. Erasure thoroughness
40. Plate uniformity
41. Grayscale
42. Luminance
43. Spatia