F-Term-List

2G075 Monitoring and testing of nuclear reactors
G21C17/00 -17/14
G21C17/00-17/14 AA AA00
TYPES OF NUCLEAR REACTOR FACILITIES
AA01 AA02 AA03 AA04 AA05 AA06 AA07 AA08 AA09 AA10
. Nuclear reactors or nuclear power plants . . Light water reactors . . . Boiling-water reactors . . . . Reactors with internal pumps (e.g., advanced boiling-water reactors) . . . Pressurized-water reactors . . Pressurized-tube reactors or heavy water reactors . . Fast-breeder reactors . . . Loop-type fast-breeder reactors . . . Tank-type fast-breeder reactors . . Gas-cooled reactors (e.g., high-temperature gas reactors)
AA11 AA12 AA13 AA14 AA15 AA17 AA18 AA19 AA20
. . . Pebble-bed reactors . . Molten-salt reactors . . Experimental and test reactors . . Spectrum-shift reactors . . Natural-circulation reactors . Fuel-manufacturing facilities . Radioactive waste treatment facilities and retreatment facilities . Variants installed in special locations (e.g., underground, undersea, in outer space) . Others
BA BA00
MONITORING AND TESTING PERIODS (I.E.,INCLUDING MAINTENANCE AND INSPECTION)
BA01 BA03 BA04 BA05 BA06 BA07 BA08 BA09
. Monitoring and testing until completion of the nuclear plant . Monitoring and testing during operation . . Starting or when restarting . . Output control . . . Variants that use substances that absorb a large quantity of neutrons . . . . Variants using control rods . . . Variants that control the recirculation flow rate . . . Load tracking operations
BA11 BA12 BA13 BA14 BA15 BA16 BA17 BA18 BA19 BA20
. . Break-in in which pellet clad interaction (PCI) is considered . . Breakdowns . . . Breaddowns with loss of coolant (i.e., LOCA) . . . Breakdowns with scram . . Operations to stop reactors . Monitoring and testing during down-time . . Periodic inspections . . Replacement or repair . Monitoring and testing following reactor disposal . Others
CA CA00
OBJECTS MONITORED OR TESTED
CA01 CA02 CA03 CA04 CA05 CA06 CA07 CA08 CA09 CA10
. Multiple plants . Entire plants (i.e., including multiple systems) . Individual equipment and systems . . Pressure vessels and reactor vessels . . . Sections coupled with pipes or tubular members . . . External surfaces . . . Internal surfaces or internal structures . . Reactor cores . . Pressure tubes and calandria tubes . . Containment vessels and buildings
CA11 CA12 CA13 CA14 CA15 CA16 CA17 CA18 CA19 CA20
. . . Unspecified types of internal equipment (CA10 is assigned to walls) . . . Storage facilities (e.g., fuel pools) . . Pipes . . Pumps (i.e., including jet pumps) . . Valves (e.g., main steam isolation valves) . . Heat exchangers and intermediate heat exchangers . . . Steam generators . . Turbines and generators . . Condensers . . Main steam systems
CA21 CA22 CA23 CA24 CA25 CA26 CA27 CA28 CA29 CA30
. . Turbine condenser systems and feedwater systems . . Secondary cooling systems . . Safety and protection systems . . Control systems . . . Control-rod-drive systems and control-rod-drive mechanisms . . Pressure-suppression systems and vessels . . Emergency cooling systems . . Systems that cool during stoppages and residual heat removal systems . . Auxiliary systems . . . Coolant-purification systems (e.g., CUW)
CA31 CA32 CA33 CA34 CA35 CA36 CA38 CA39 CA40
. . . Radioactive-waste-treatment systems . . . . Off-gas systems and exhaust-gas stacks . . . Drain systems . . . Cover gas systems . . . Ventilation and air conditioning systems . . . Auxiliary-equipment-cooling systems and seawater systems . Fuels, fuel elements, and fuel assemblies . Control rods, spectrum shift rods, and the like . Coolants and moderators
CA41 CA42 CA43 CA44 CA45 CA46 CA47 CA48 CA49 CA50
. . Variants in reactor containers or near intakes or outlets . Atmosphere (e.g., gas in containment vessels) . Parts . . Nuts and bolts . Test pieces . Broken pieces and loose parts . Operating staff . People or goods that enter or exit the facility . Instrumentation systems, or monitoring or testing apparatuses . Other
DA DA00
CONTENTS OF OR ITEMS IN MONITORING AND TESTING
DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10
. Nuclear instrumentation . Physical quantities for the purpose of monitoring . . Temperature and heat . . Pressure . . Flow rate . . Liquid level . . Component concentration . . Radioactivity and radiation . Phenomena for the purpose of monitoring . . Leakage
DA11 DA12 DA13 DA14 DA15 DA16 DA17 DA18 DA19 DA20
. . Boiling . . Cavitation . . Mechanical vibration . . Corrosion . Structural safety (e.g., shape) . . Breakage or fractures . Manner in which fuel and the like are arranged or assembled . Soundness of functions and characteristics (e.g., safety) . . Start-up testing and operating states of valves, pumps, and the like . Others
EA EA00
DETERMINATIONS OR DIAGNOSES FROM THE RESULTS OF MONITORING AND TESTING
EA01 EA02 EA03 EA04 EA05 EA06 EA07 EA08 EA09 EA10
. Presence of abnormal states . Indications of abnormal states . Quantitative diagnosis of abnormal states (e.g., probability or degree) . Unanticipated abnormal states . Specification of the location of abnormalities and searching for the causes of abnormalities . . Variants that identity the first cause . Prediction of the propagation of abnormal states . Measures to avoid or recover from abnormal states . Indication of maintenance and inspection . Others
FA FA00
MONITORING AND TESTING MEANS
FA01 FA02 FA03 FA04 FA05 FA06 FA07 FA08 FA09 FA10
. Physical quantities that change the testing conditions for items to be tested . . Force or vibration . . Pressure (i.e., including reduced pressure) . . Heat (i.e., including cooling) . . Radiation . . . Neutron beams . . Test signals and external disturbances . Variants using simulated objects . . Variants using heaters . . Variants using test pieces
FA11 FA12 FA13 FA14 FA15 FA16 FA17 FA18 FA19 FA20
. Detection means . . Variants using observation apparatuses . . . Visual observation or television cameras . . . Periscopes or fiberscopes . . . Ultrasonic radioscopy . . Use of flaw detection devices (e.g., ultrasonic waves, eddy currents, or penetration) . . Use of vibration or wave motion (e.g., acceleration, acoustics, or acoustic emissions) . . Variants using radiation detectors . . . Variants using neutron detectors . Others
FB FB00
MEANS OF HANDLING, JUDGING, OR DIAGNOSING MONITORING AND TESTING DATA
FB01 FB02 FB03 FB04 FB05 FB06 FB07 FB08 FB09 FB10
. Variants characterized by the data transmission means . . Variants using electrical cables . . Variants using optical fibers . Variants characterized by signal processing . Variants characterized by correcting, compensating or calibrating means . . Variants using traveling in-core probes (TIP) (e.g, traveling neutron detectors) . Variants characterized by data processing . Means for judging or diagnosing the results of monitoring and testing . . Deviation from reference values . . Use of patterns or interrelationships of monitoring data
FB11 FB12 FB13 FB14 FB15 FB16 FB17 FB18 FB19 FB20
. . Analysis of variation in and noise evaluation of monitoring data . . Variants in which references are modified or changed . . Variants characterized by the search for the causes of abnormalities . . . Variants using a tree structure, e.g., cause and effect tree methods . Variants characterized by the use of functions or equations . Variants characterized by databases . Variants having learning functions (including histories) . Variants having prediction functions . Variants using knowledge engineering, inference and artificial intelligence . Others
FC FC00
DISTINCTIVE POINTS ASSOCIATED WITH MONITORING AND TESTING
FC01 FC02 FC03 FC04 FC05 FC06 FC07 FC08 FC09 FC10
. Remote control . . Handling of the construction of detected items or nuclear reactor facilities . . Handling of monitoring apparatuses, testing apparatuses and maintenance apparatuses . Control and adjustment . Logic, sequencing, interlockinf, and the like . Procedures and planning . Consideration to relative importance, priorities, or allowances . Means of imparting redundancy . . Use of majority-rule redundancy methods (e.g., a two-out-of-three method) . Measures against abnormalities in measuring systems (excluding the means in FC08)
FC11 FC12 FC13 FC14 FC15 FC16 FC17 FC18 FC19 FC20
. Simulators, teaching and training . Sampling and transfer of samples . Preparation of samples . Structures and mechanisms . Arrangement and alignment . Materials . Manufacture and repair . Preparatory operations, e.g., inspection . Items inspected and structures associated therewith . Others
FD FD00
DISTINCTIVE FEATURES IN THE MEANS BY WHICH THE RESULTS OF MONITORING, TESTING, AND DIAGNOSIS ARE OUTPUT
FD01 FD02 FD03 FD04 FD06 FD07 FD09 FD10
. Variants using display means (i.e., visual) . . Graphic display . . Trend display . . Updating and selection of displayed contents and screens . Variants using voices (i.e., auditory) . Alarm devices (use FD06 for items that use voices) . Variants that output the causes of abnormalities or cause and effect relationships . Others
GA GA00
PURPOSE AND EFFECTS
GA01 GA02 GA03 GA04 GA05 GA06 GA07 GA08 GA09 GA10
. Structure or handling . . Reduced size or weight, or reduction in the number of parts . . Ease of disassembly or ease of removal . . Telescoping . . Protection from and prevention of cutting . . Prevention of stress or tension generation . . Prevention of impact and interference . . Prevention of adhesion . . Improved maintainability . . Dilution
GA11 GA12 GA14 GA15 GA16 GA17 GA18 GA19 GA20
. . Condensing in order to separate . . Use or reuse of existing items . Processing, functions, or software . . Shortening of processing time, or on-line processing . . Reduction of the number of processes . . Prevention of malfunction . . Improvement of stability and regeneration qualities . . Expansion of measurement ranges . . Specification of measurement ranges
GA21 GA22 GA23 GA24 GA25 GA26 GA27 GA28 GA29 GA30
. . Improvement of signal-to-noise ratios, sensitivity, or precision . . Loss reduction . . Digitalization . . Automation . . Provision of multiple functions . . Parallel processing . Operation or control . . Improvement of control characteristics . . Reliable scrams or trips . . Prevention of false scrams or trips
GA31 GA32 GA33 GA34 GA35 GA36 GA37 GA38 GA39 GA40
. . Prevention of deviation from restricted conditions . . . Avoidance of scrams or trips . . Prevention of operating errors . Recognition or judgment . Operations, planning or programs . Radiation or radioactive substances . . Reduction of exposure . . Prevention of leaks . No association with the art of this theme . Others
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