Physics of Nuclear Medicine

Physics of Nuclear Medicine

Objectives

1. Physical of radioactive.
2. The basic equation for describing
radioactive decay.
3. Application of nuclear in medicine
(treatment & diagnosis).
4. Basic instrumentation & its clinical
applications.

Radioactivity

A certain natural elements, heavy have
unstable that disintegrate to emit various rays.
Alpha (? ), Beta(?), Gamma(?)rays.

Neutrino

A mass less, charge less, particle, Takes
up the difference in energy between the
actual beta energy and the maximum
beta energy.

Isotpes

Nuclei of a given element with different
numbers of neutrons.
There are two types:
-Stable isotopes if they are not radioactive
Ex:(12 C, 13 C).
-Radioisotopes if they are radioactive.
Ex: (11 C, 14 C, 15 C)


Radio- nuclides

Radio-nuclides:
Is used when several radioactive
elements are involved.
(Radioisotopes are used when
referring to single element).


Activity of radioactive materials

?half-life.
?mean life.
? decay constant
?background