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Radiological Safety Training for Uranium Facilities - index
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DOE-HDBK-1113-98
Module 101 Properties of Uranium
Lesson Plan
Instructor's Notes
process in which a very heavy, unstable atom splits
in two, or "fissions". When an atom fissions, one
large atom primarily becomes two smaller atoms,
between one and seven neutrons are given off
(which may cause fission in nearby atoms), and a
great deal of energy is given off as radiation and in
other forms, such as kinetic energy of the fission
fragments. The radiation created could result in the
creation of radiological areas, such as High or Very
High Radiation Areas. Nuclear criticality
associated with uranium will be discussed in
greater detail later in the lesson.
D.
Chemical Properties
Uranium is chemic ally reactive . It burns in air l ike
magnesium; it is toxic like lead; and it forms a large variety
of chemical comp ounds. All the isotopes of u ranium have
the same chemical reactivity, and all can be made into the
many different physical and chemical forms discussed in
this section.
Show OT-8
1.
Fire
Uranium is a metal that will sustain a burning
reaction (similar to a magnesium flare). The
potential for a fire is greatest when the uranium is
in a finely divided form, such as milling chips or
filings. In this form, uranium can undergo
spontaneous ignition. Uranium metal is often
13


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