What Student Need To Know About The focus to Image Receptor In Radio-Diagnosis

The use of continuous X-ray exposures in fluoroscopy generally refers to the use of low XRT currents (i.e. 0.5 to 5 mA). The resultant images have a low image quality but are sufficient for applications such as patient positioning or monitoring catheter placement. Its use is also commonly called Screening, a reference to the days when a sheet of glass coated with a fluorescent material was used for such imaging. By contrast, the term fluorography generally refers to the use of relatively intense (e.g. 50 to 1000 mA), pulsed exposures. Pulses are typically of short duration and can be applied at a rate of, for example, 1 to 8 per second. The resultant images have a relatively high image quality and can therefore be used for diagnostic purposes. The Capture of an X ray image may conceptually be divided into three stages (with a possible fourth stage): • The Interaction of the X ray with a suitable detection medium to generate a measurable response • The temporary Storage of this response with a rec