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|  DOE-HDBK-1108-97
Radiological Training for Accelerator Facilities
Instructor's Guide
Lesson Plan
Instructor's Notes
N
Cavities and beamline: the beamline piping
and items such as resonating cavities,
diagnostic devices, etc.
5.
Air
(Facility-Specific) Each facility
should cover their radionuclides
Air, dust, and other gases in the accelerator
of concern, such as:
N
enclosure may be activated. Typically, the
O-15
N
activation products are short-lived gaseous
N-13
N
radionuclides of the elements in the air or
C-11
particulate, in the case of dust particles.
Cover facility's procedures for
Examples are Oxygen-15 from Nitrogen-14
entering enclosure after beam
and Oxygen-16.
shut-off.
6.
Liquids
(Facility-Specific) Include likely
facility locations.
a. Cooling water: used for cooling beamline
components (activation products such as
tritium (H-3), beryllium (Be-7) and
possible pipe wear products or erosion of
See Section VI, for methods to
the pipe surfaces).
dispose of activated liquids.
b. Oil in vacuum pumps (beam line
components).
c. Cryogenic fluids: liquid helium and
nitrogen are used frequently to cool
components.
20
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