Section 1 Systems

DOE-HDBK-1132-99

SECTION 1

SYSTEMS

This section of the handbook treats systems (e.g., confinement systems, radiation protection,

and effluent monitoring and controls) typically used in nuclear facilities to control radiation or

radioactive material. The specifics of designing these systems are developed in an iterative

fashion by considering hazards and opportunities (alternatives) for prevention and mitigation of

accidents involving the hazards. This section provides information based on experience,

which the designer may use when developing the design.

1.1

CONFINEMENT SYSTEMS

Introduction and Scope. Safety ventilation and off-gas systems are generally

1.1.1

designed to operate in conjunction with physical barriers to form a confinement

system that limits the release of radioactive or other hazardous material to the

environment and prevents or minimizes the spread of contamination within the

facility. Confinement systems should be designed to--

prevent (if possible) or minimize the spread of radioactive and other

hazardous materials to occupied areas;

minimize the release of radioactive and other hazardous materials in

facility effluents during normal operation and anticipated operational

occurrences;

minimize the spread of radioactive and other hazardous materials within

unoccupied process areas; and

limit the release of radioactive and other hazardous materials resulting

from accidents, including those caused by severe natural phenomena

and man-made events.

I-7