Enum: FuelCycleOperationEnum

Nuclear fuel cycle operational activities

Permissible Values

Value	Meaning	Description
URANIUM_EXPLORATION	None	Search and evaluation of uranium deposits
URANIUM_EXTRACTION	None	Mining and extraction of uranium ore
URANIUM_MILLING	None	Processing of uranium ore to produce yellowcake
URANIUM_CONVERSION	None	Conversion of yellowcake to uranium hexafluoride
URANIUM_ENRICHMENT	None	Increase U-235 concentration in uranium
FUEL_FABRICATION	None	Manufacturing of nuclear fuel assemblies
REACTOR_FUEL_LOADING	None	Installation of fresh fuel in reactor
REACTOR_OPERATION	None	Power generation and fuel burnup
SPENT_FUEL_DISCHARGE	None	Removal of used fuel from reactor
SPENT_FUEL_STORAGE	None	Interim storage of discharged fuel
SPENT_FUEL_REPROCESSING	None	Chemical separation of spent fuel components
WASTE_CONDITIONING	None	Preparation of waste for storage or disposal
WASTE_DISPOSAL	None	Permanent disposal of nuclear waste

Slots

Name	Description
fuel_cycle_operation	Nuclear fuel cycle operational activity

Identifier and Mapping Information

Schema Source

from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: FuelCycleOperationEnum
description: Nuclear fuel cycle operational activities
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  URANIUM_EXPLORATION:
    text: URANIUM_EXPLORATION
    description: Search and evaluation of uranium deposits
    annotations:
      activities:
        tag: activities
        value: geological surveys, drilling, sampling
      purpose:
        tag: purpose
        value: locate economically viable deposits
      methods:
        tag: methods
        value: airborne surveys, ground exploration
    title: Uranium Exploration
  URANIUM_EXTRACTION:
    text: URANIUM_EXTRACTION
    description: Mining and extraction of uranium ore
    annotations:
      methods:
        tag: methods
        value: open pit, underground, in-situ leaching
      output:
        tag: output
        value: uranium ore
      processing:
        tag: processing
        value: crushing and grinding
    title: Uranium Extraction
  URANIUM_MILLING:
    text: URANIUM_MILLING
    description: Processing of uranium ore to produce yellowcake
    annotations:
      input:
        tag: input
        value: uranium ore
      output:
        tag: output
        value: uranium concentrate (U3O8)
      process:
        tag: process
        value: acid or alkaline leaching
    title: Uranium Milling
  URANIUM_CONVERSION:
    text: URANIUM_CONVERSION
    description: Conversion of yellowcake to uranium hexafluoride
    annotations:
      input:
        tag: input
        value: uranium concentrate (U3O8)
      output:
        tag: output
        value: uranium hexafluoride (UF6)
      purpose:
        tag: purpose
        value: prepare for enrichment
    title: Uranium Conversion
  URANIUM_ENRICHMENT:
    text: URANIUM_ENRICHMENT
    description: Increase U-235 concentration in uranium
    annotations:
      input:
        tag: input
        value: natural uranium (0.711% U-235)
      output:
        tag: output
        value: enriched uranium (3-5% typical)
      waste:
        tag: waste
        value: depleted uranium tails
      methods:
        tag: methods
        value: gas centrifuge, gaseous diffusion
    title: Uranium Enrichment
  FUEL_FABRICATION:
    text: FUEL_FABRICATION
    description: Manufacturing of nuclear fuel assemblies
    annotations:
      input:
        tag: input
        value: enriched uranium
      output:
        tag: output
        value: fuel assemblies
      process:
        tag: process
        value: pellet production, rod assembly
    title: Fuel Fabrication
  REACTOR_FUEL_LOADING:
    text: REACTOR_FUEL_LOADING
    description: Installation of fresh fuel in reactor
    annotations:
      frequency:
        tag: frequency
        value: every 12-24 months
      procedure:
        tag: procedure
        value: careful criticality control
      configuration:
        tag: configuration
        value: specific loading pattern
    title: Reactor Fuel Loading
  REACTOR_OPERATION:
    text: REACTOR_OPERATION
    description: Power generation and fuel burnup
    annotations:
      duration:
        tag: duration
        value: 12-24 months typical cycle
      burnup:
        tag: burnup
        value: fuel depletion over time
      output:
        tag: output
        value: electricity and fission products
    title: Reactor Operation
  SPENT_FUEL_DISCHARGE:
    text: SPENT_FUEL_DISCHARGE
    description: Removal of used fuel from reactor
    annotations:
      timing:
        tag: timing
        value: end of fuel cycle
      handling:
        tag: handling
        value: underwater fuel handling
      destination:
        tag: destination
        value: spent fuel pool storage
    title: Spent Fuel Discharge
  SPENT_FUEL_STORAGE:
    text: SPENT_FUEL_STORAGE
    description: Interim storage of discharged fuel
    annotations:
      cooling:
        tag: cooling
        value: decay heat removal
      duration:
        tag: duration
        value: 5-100+ years
      methods:
        tag: methods
        value: pools, dry casks
    title: Spent Fuel Storage
  SPENT_FUEL_REPROCESSING:
    text: SPENT_FUEL_REPROCESSING
    description: Chemical separation of spent fuel components
    annotations:
      separation:
        tag: separation
        value: uranium, plutonium, waste
      recovery:
        tag: recovery
        value: recovers usable materials
      waste:
        tag: waste
        value: high-level waste production
    title: Spent Fuel Reprocessing
  WASTE_CONDITIONING:
    text: WASTE_CONDITIONING
    description: Preparation of waste for storage or disposal
    annotations:
      treatment:
        tag: treatment
        value: solidification, encapsulation
      purpose:
        tag: purpose
        value: stable waste form
      standards:
        tag: standards
        value: waste acceptance criteria
    title: Waste Conditioning
  WASTE_DISPOSAL:
    text: WASTE_DISPOSAL
    description: Permanent disposal of nuclear waste
    annotations:
      method:
        tag: method
        value: geological repository
      isolation:
        tag: isolation
        value: long-term containment
      safety:
        tag: safety
        value: protect public and environment
    title: Waste Disposal