Computed Tomography (CT) Although also based on the variable absorption of x rays by different tissues, computed tomography (CT) imaging, also known as "CAT scanning" (Computerized Axial Tomography), provides a different form of imaging known as cross-sectional imaging.
Magnetic resonance imaging (MRI) scans are used to get detailed images of the organs and tissues in the body. Unlike CT scans and X-rays, an MRI does not use ionizing radiation that can be potentially harmful. Instead, it uses radio waves, a magnet, and a computer. Find out what happens during and after an MRI scan.
Fluoroscopy is a type of x-ray procedure that captures moving images, allowing the radiologist to observe the functioning as well as the anatomy of internal organs. Common exams that use fluoroscopy include upper gastrointestinal exams (UGI), barium swallow, and barium enemas (BE).
Dedicated breast CT offers a gentler approach: The woman lies face down on a special table and suspends one breast through a hole. A unique scanner circles the breast -- no painful compression involved -- snapping virtual "slices" of breast tissue. The scans take only a few seconds.
Positron Emission Tomography - Computed Tomography (PET/CT) Positron emission tomography (PET) uses small amounts of radioactive materials called radiotracers, a special camera and a computer to help evaluate your organ and tissue functions. By identifying body changes at the cellular level, PET may detect the early onset of disease before it is evident on other imaging tests.
A current transformer could have any core type including toroidal. This doesn't mean that all core types are a good choice but any could be used. A current transformer has material selection and winding characteristics to make it good for the application of "current transformer". A toroidal core transformer has a toroidal core.
A current transformer is an instrument transformer, used along with measuring or protective devices, in which the secondary current is proportional to the primary current (under normal conditions of operation) and differs from it by an angle which is approximately zero.