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|  Radiological Assessor Training
DOE-HDBK-1141-2001
Student's Guide
2. Activated materials
Materials that may become radioactive
include:
Any material within the accelerator
enclosure
Beamline components
Air
Liquids
Accelerators used to produce radioisotopes
present special problems because of the
variety of target materials used, and because
the parameters of machine and target are
deliberately optimized to produce radioactive
materials.
Beamline components
Items that intercept a portion of the beam are
most likely to be activated. Among those
items which have the highest probability for
activation are:
Targets
Beam dumps or stops
Collimators and scrapers
Septa and other magnets
Cavities and beamline
Air
Air and other gases in the accelerator
enclosure may be activated. Typically, the
activation products are short-lived gaseous
radionuclides of the elements in the air.
Examples are Oxygen-15 from Oxygen-16.
Module 13 - 8
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