Nuclear Criticality Safety

DOE-HDBK-XXXX-2005

06/30/2005

385.

NUCLEAR CRITICALITY SAFETY. Protection against the consequences of an

inadvertent nuclear fission chain reaction, preferably by preventing the reaction. [DOE

G-421.1-1]

NUCLEAR EXPERIENCE. Used in reference to:

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A. CATEGORY A AND B REACTORS. Experience acquired at commercial,

production, training, test, military, or research reactors and includes experience

acquired in reactor facility startup activities or operation. Experience in design,

construction, maintenance, or related technical services that is job-related may also be

considered. Appropriate research, or teaching, or both may be includable as nuclear

experience.

B. NON-REACTOR NUCLEAR FACILITIES. Experience acquired at any facility in

which radioactive materials are routinely handled, stored, processed, or utilized.

[DOE O 5480.20A] [EH62dd1]

387.

NUCLEAR EXPLOSIVE FACILITY. A facility where nuclear explosive operations or

activities are performed. [DOE O 452.2A]

388.

NUCLEAR EXPLOSIVE SAFETY STANDARDS. Five qualitative requirements for

positive measures to prevent an accidental, inadvertent, or deliberate unauthorized

nuclear detonation or actions that might lead to a detonation; to provide for physical

security, and to prevent plutonium dispersal. These requirements may be met through

design features, safety rules, and procedures that reduce risk.

NUCLEAR EXPLOSIVE OPERATION. Any activity involving a nuclear explosive,

389.

including activities in which main charge high-explosive parts and pit are collocated.

[DOE O 452.2B]

NUCLEAR EXPLOSIVE SAFETY STUDY (NESS). A formal evaluation of the

390.

adequacy of controls to meet the DOE/National Nuclear Security Administration nuclear

explosive safety standards. [DOE O 452.2B]

391.

NUCLEAR FACILITY. A reactor or a nonreactor nuclear facility where an activity is

conducted for or on behalf of DOE and includes any related area, structure, facility, or

activity to the extent necessary to ensure proper implementation of the requirements

established in10 CFR 830. [10 CFR 830.3]

NUCLEAR FACILITY OPERATOR. A person certified by contractor nuclear facility

392.

management to manipulate or handle fissionable materials, radioactive materials, or

DRAFT