Technical Elements Documentation
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    Comprehensive definition of an initiating event

    IE-A7

    const loca: InitiatorDefinition = {
    id: "IE-LOCA-LARGE",
    name: "Large Break LOCA",
    eventType: "INITIATING",
    frequency: 1.0e-6,
    category: InitiatingEventCategory.RCB_BREACH,
    operating_states: [OperatingState.POWER],
    // ... other properties
    };
    interface InitiatorDefinition {
        applicableStates?: string[];
        barrier_impacts: Record<
            string,
            {
                barrier: string;
                mechanism: string;
                state: BarrierStatus;
                timing: string;
            },
        >;
        category: string;
        description?: string;
        genericAnalysisReview?: string;
        group?: string;
        groupId?: string;
        id: string;
        identification_basis: string[];
        identification_method: string;
        importanceLevel?: ImportanceLevel;
        mitigating_systems: Record<
            string,
            {
                dependencies: string[];
                function: string;
                success_criteria: string
                | string[]
                | SuccessCriteriaId;
                system: string;
            },
        >;
        module_impacts: Record<
            string,
            {
                module: string;
                propagation_path?: string;
                state: ModuleState;
                timing?: string;
            },
        >;
        operating_states: OperatingState[];
        plantExperience?: string[];
        preOperationalAssumptions?: string[];
        screeningBasis?: string;
        screeningStatus?: ScreeningStatus;
        subcategory?: string;
        supportingAnalyses?: {
            analysisId: string;
            analysisType: string;
            description?: string;
        }[];
        trip_parameters: Record<
            string,
            {
                basis: string;
                parameter: string;
                setpoint: number;
                uncertainty: number;
            },
        >;
        uncertainty?: Uncertainty;
    }

    Hierarchy (View Summary)

    Index

    Properties

    applicableStates?: string[]

    Plant operating states in which this initiating event can occur.

    HLR-IE-A

    barrier_impacts: Record<
        string,
        {
            barrier: string;
            mechanism: string;
            state: BarrierStatus;
            timing: string;
        },
    >

    Impact on radionuclide barriers

    Uses the BarrierStatus enum from plant-operating-states-analysis

    category: string

    Category of the initiating event.

    HLR-IE-B

    description?: string

    Optional detailed description of the initiating event.

    genericAnalysisReview?: string

    Review of generic analyses of similar plants.

    IE-A8

    group?: string

    Grouping of initiating events with similar mitigation requirements.

    HLR-IE-B

    groupId?: string

    Unique identifier for the grouping of initiating events for analysis purposes.

    HLR-IE-B

    id: string

    Alternative ID for the initiator

    identification_basis: string[]

    Basis for identification of this initiator

    identification_method: string

    Method used to identify this initiating event

    importanceLevel?: ImportanceLevel

    Importance level of this initiating event for risk insights

    mitigating_systems: Record<
        string,
        {
            dependencies: string[];
            function: string;
            success_criteria: string
            | string[]
            | SuccessCriteriaId;
            system: string;
        },
    >

    Systems that can mitigate this initiating event

    module_impacts: Record<
        string,
        {
            module: string;
            propagation_path?: string;
            state: ModuleState;
            timing?: string;
        },
    >

    Impact on reactor modules (for multi-module plants)

    Uses the ModuleState enum from plant-operating-states-analysis

    operating_states: OperatingState[]

    Operating states in which this initiator can occur

    This property uses the OperatingState enum from plant-operating-states-analysis to ensure type consistency across the codebase.

    plantExperience?: string[]

    List of plant-specific experience related to this initiating event (for operating plants).

    IE-A7

    preOperationalAssumptions?: string[]

    Assumptions made due to lack of as-built, as-operated details (for pre-operational stage).

    IE-A18

    screeningBasis?: string

    Basis for screening out this initiating event (if applicable).

    IE-D1

    screeningStatus?: ScreeningStatus

    Screening status of this initiating event

    IE-B7

    subcategory?: string

    Subcategory of the initiating event

    supportingAnalyses?: {
        analysisId: string;
        analysisType: string;
        description?: string;
    }[]

    References to supporting analyses (e.g., fault trees).

    IE-C11

    trip_parameters: Record<
        string,
        { basis: string; parameter: string; setpoint: number; uncertainty: number },
    >

    Parameters that trigger reactor/plant trips

    uncertainty?: Uncertainty

    Model uncertainty, data sources, and assumptions associated with the initiating event.

    IE-C19