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|  DOE-HDBK-1108-97
Radiological Training for Accelerator Facilities
Instructor's Guide
Lesson Plan
Instructor's Notes
1.
Passive engineered controls
Once installed, passive engineered controls
require no further action to perform their
intended function. Passive engineered controls
may include:
a. Radiation shielding: such as concrete
blocks, iron plates, lead bricks and earth
berms.
b. Barriers: such as fences, locked gates, and
doors.
c. Facility-Specific: facility-specific passive
engineered controls.
2.
Active engineered controls
Active engineered controls include devices that
sense changing conditions and can trigger a
safety action.
a. Safety interlock devices.
Show picture of facility safety
N
Area radiation monitors.
interlock devices.
N
Access sensors, magnetic and
mechanical.
N
"Crash" or "scram" buttons.
25
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