Results for: Positron-emission-tomography

What can positrons do?

Positrons are anti-electrons; they're antimatter. There are a couple of sources of positrons, and in our universe, the positron is looking for an electron to combine with so i (MORE)

What is the difference between transmission and emission tomography?

the transmission of radiation/energy refers to the fraction of incident radiation that is absorbed by and passes through a substance or body +++ whereas emission refers to the (MORE)

What is a positron?

A positron is a positively charged electron. It's an antielectron - antimatter! The positron has a charge of +1 (just the opposite of the -1 of the electron), and a spin of 1/ (MORE)

What happens in the positron emission of silicon-26?

Silicon-26 is a synthetic isotope of silicon; it is a man-made isotope. Additionally, silicon-26 is pretty unstable, and it has a half life of only about 2.234 seconds. This u (MORE)

How does positron emission cause nuclear transmutation?

  It is in beta plus decay that we see the positron emitted from the nucleus. (An electron is emitted in beta minus decay.) Within the nucleus of an unstable atom, a proto (MORE)

Why do positron emission and electron capture have the same effect on a nucleus?

The reason positron emission and electron capture have the same effect on the nucleus of an atom is because the resulting atom undergoes nuclear transformation, and the new el (MORE)
In Uncategorized

What is tomography?

refers to imaging by sections or sectioning, through the use of any  kind of penetrating wave.
Thanks for the feedback!

How does positron emmission tomography work?

Positron emission tomography (PET) is a nuclear medicine imaging technique which produces a three-dimensional image or picture of functional processes in the body. The system (MORE)
In Uncategorized

What can tomography be used for?

It can be used for detecting or confirming the presence of a tumor inside the human body, and providing information about the size of the tumor and whether or not it has sprea (MORE)