EVALUATION AND UPGRADING OF PHYSICAL PROTECTION SYSTEM OF A HYPOTHETICAL NUCLEAR FACILITY AGAINST SABOTAGE THREAT

 للكاتبين :

A.E. Mansour * and A. A. Wadoud **

*Faculty of Engineering, Al-Azhar University, Cairo, Egypt

**Nuclear Research Center, Atomic Energy Authority,

Reactors Department, Cairo, Egypt

ABSTRACT

The physical protection system (PPS) is designed to prevent radiological sabotage and/or

theft of nuclear materials present within the nuclear facility. The PPS design includes the

determination of the PPS objectives, the initial design of a PPS; the evaluation of the design,

and, probably, a redesign or refinement of the system. Once a PPS is designed, it must be

analyzed and evaluated to ensure it meets the physical protection objectives. This work deals

with the physical protection system performance of a hypothetical research reactor facility

(HRRF) to ensure it verify the physical protection system objectives. Single path computer

models are used in the evaluation process. Many paths of an adversary who intends to attempt

the nuclear materials inside the reactor are analyzed. Also an expected sabotage & theft –

scenarios are created to compute the physical protection system effectiveness. The probability

of detection and delay time values of detection, delay, communication and response forces

action are measured along a specific path of the adversary. Each of probability of

interruption P (I) & probability of neutralization P (N) are computed to determine the

probability of effectiveness P (E) as a metric of the physical protection system effectiveness.

The output result shows that the physical protection system of the facility must be improved.

The required upgrades for the weakness elements inside the physical protection system of

HRRF and studying the effects of this upgrade on the physical protection system

effectiveness are achieved.

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