Diagnostic Radiologic Instrumentation: Modulation Transfer FunctionRobert David Moseley, John Howard Rust |
Contents
Chapter | 3 |
Page | 222 |
FACTORS LIMITING THE RESOLUTION AND CONTRAST | 240 |
Copyright | |
6 other sections not shown
Common terms and phrases
absorbed amplifier applied cent characteristics combination compared components contrast curve definition density depends detail determined diameter difficult discussed distance distribution dose rate effect electron enlargement equation evaluation experiments exposure factor field Figure film fluctuation fluoroscopic focus frequency give given grid higher image intensifier image quality image tube important improvement increase indicate influence input layer less light limit luminance means measurements method modulation transfer function mottle noise object observer obtained optical output parameters pattern perception performance phosphor photographic photons physical picture possible practical present problem quantum question radiation radiographic radiologist radiology range recording resolution response retina ROSSMANN scatter screen shown shows signal signal-to-noise ratio slit spatial frequency square standard statistical television thickness tion unsharpness vidicon viewing visual wave x-ray image x-ray image intensifier