Chapter 8
Safety and Health in Radioisotope Applications
Radioisotope applications represent the most widespread use of
atomic energy
Health and safety problems vary with type of application and form
in which radioisotopes are used
l.
Sealed sources
Gaging and radiography are primary uses
Shielding and distance used as protective measures
Gaging sources present minor external hazard
Hazards
(1)
Rupture
(2)
Leakage
(3)
Radiation
Wipe tests detect leakage of sources
(1)
For specific sources
(2)
Frequency of tests
Radiography sources kept in shields until ready for use
Radiography can be done in heavily shielded room where admission is prohibited (warning bells,
labrynths, etc.)
When radiography is done on shop floor, barriers are set
up to take advantage of distance concept
Unsealed sources - definition of unsealed source
a.
Industrial research makes wide use of unsealed sources
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