ClassID:

200290

G21C17/108 - CPC Classification

Classification description:

Monitoring; Testing Maintaining; Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain Measuring reactor flux

Recent Application in this class:
#1
20250391581
2025-12-25

MULTI-USE MOVABLE INCORE SYSTEM TO SUPPORT REACTOR POWER DISTRIBUTION MEASUREMENTS AND RADIOISOTOPE PRODUCTION ACTIVITIES

#2
20250246326
2025-07-31

Optimizing the Detector Placement for the Nuclear Reactor Core software using Reinforcement Learning

#3
20250180765
2025-06-05

NEUTRON DETECTOR COMPRISING AN OPTICAL FISSION CHAMBER WITH A REFLECTIVE OPTICAL CAVITY AND A DETECTION HEAD COUPLED TO THE CHAMBER COMPRISING AN OPTICAL LENS AND A FIBRE-OPTIC COUPLER

#4
20250130362
2025-04-24

SYSTEMS AND METHODS FOR SENSOR INSTRUMENTATION IN NUCLEAR REACTORS

#5
20250054648
2025-02-13

A METHOD CALIBRATING POWER MONITORS FOR MOLTEN SALT REACTORS AT LOW POWER

#6
20240404720
2024-12-05

METHOD OF SYNTHESIZING REACTOR CORE POWER DISTRIBUTION FOR REACTOR CORE PROTECTION SYSTEM BASED ON IN-CORE INSTRUMENT SIGNAL USING ORDINARY KRIGING METHOD

#7
20240387068
2024-11-21

SYSTEMS FOR PERIODICALLY MEASURING THE TOTAL GAMMA RADIATION ACTIVITY OF A TARGET RADIOISOTOPE BEING PRODUCED INSIDE THE CORE OF A NUCLEAR REACTOR

#8
20240266085
2024-08-08

Automated In-Vessel Neutron Flux Detector System Embedded in Control Drum Assembly

#9
20240145107
2024-05-02

NEUTRON FLUX MEASUREMENT APPARATUS

#10
20240127978
2024-04-18

METHOD FOR THERMAL PERFORMANCE MONITORING OF A NUCLEAR POWER PLANT USING THE NCV METHOD

#11
20240125950
2024-04-18

Devices, systems, and methods for detecting radiation with Schottky diodes for enhanced in-core measurements n-core measurements

#12
20240120116
2024-04-11

DEVICES, SYSTEMS, AND METHODS FOR THE ENHANCED OPERATION OF HYDRAULIC CONTROL UNITS OF A CONTROL ROD DRIVE MECHANISM TO REGULATE NUCLEAR FLUX IN A REACTOR CORE

#13
20240094417
2024-03-21

Radiation Induced Conductivity Flux Measurement Device

#14
20240021331
2024-01-18

INTEGRATED HEAD PACKAGE

#15
20240006089
2024-01-04

BLOCKING DEVICE FOR STOPPING SOLID BODIES THAT HAVE BEEN IRRADIATED OR THAT ARE TO BE IRRADIATED

#16
20240006088
2024-01-04

A SENSOR DEVICE AND A METHOD FOR DETECTING FISSILE MATERIAL

#17
20230023187
2023-01-26

Sensor assemblies and nuclear reactor systems comprising doped solid-state lasing media for use in determining an operating characteristic of a nuclear reactor, and related methods

#18
20230017787
2023-01-19

System for measuring fast neutron fluence for a nuclear reactor, associated installation, measurement method and computer program product

#19
20230012716
2023-01-19

Using xenon concentration in controlling a nuclear power plant

#20
20220415530
2022-12-29

METHOD AND APPARATUS EMPLOYING VANADIUM NEUTRON DETECTORS

#21
20220397689
2022-12-15

METHOD FOR EXTENDING LIFESPAN OF RHODIUM MEASURING DEVICES

#22
20220390630
2022-12-08

SELF-POWERED EXCORE DETECTOR ARRANGEMENT FOR MEASURING FLUX OF A NUCLEAR REACTOR CORE

#23
20220342093
2022-10-27

Devices, systems, and methods for detecting radiation with Schottky diodes for enhanced in-core measurements

#24
20220262532
2022-08-18

Nuclear reactor system, transmitter device therefor, and associated method of measuring a number of environmental conditions

#25
20220230769
2022-07-21

SYSTEM AND METHOD TO DETERMINE REACTIVITY

#26
20220155472
2022-05-19

Emitters for fast-spectrum self-powered neutron detector

#27
20220115155
2022-04-14

METHOD FOR OPERATING A NUCLEAR REACTOR WITH CALCULATION OF THE CTFR ON LINE, CORRESPONDING NUCLEAR REACTOR

#28
20220051824
2022-02-17

Method for protecting a nuclear reactor and corresponding nuclear reactor

#29
20210366626
2021-11-25

Method for periodically measuring the total gamma radiation activity of a target radioisotope being produced inside a nuclear reactor core

#30
20210296015
2021-09-23

Lance unit, nuclide activation and nuclear monitoring system as well as method of producing radionuclides

#31
20210287824
2021-09-16

Irradiation target handling device for moving a target into a nuclear reactor

#32
20210257116
2021-08-19

System and method for stand-off monitoring of nuclear reactors using neutron detection

#33
20210050123
2021-02-18

System and method enabling signals from replacement self-powered neutron detectors to be used to generate inputs to legacy software

#34
20200395138
2020-12-17

COVARIANCE DATA CREATION APPARATUS, REACTOR CORE ANALYSIS APPARATUS, COVARIANCE DATA CREATION METHOD, MACROSCOPIC COVARIANCE ADJUSTMENT METHOD, REACTOR CORE CHARACTERISTIC EVALUATION METHOD, COVARIANCE DATA CREATION PROGRAM, MACROSCOPIC COVARIANCE ADJUSTMENT PROGRAM, AND REACTOR CORE CHARACTERISTIC EVALUATION PROGRAM

#35
20200373030
2020-11-26

NUCLEAR FUEL ASSEMBLY TOP NOZZLE HAVING IN-CORE INSTRUMENT INSERTION STRUCTURE USING UPPER CORE PLATE GUIDE PIN

#36
20200365287
2020-11-19

Wirelessly emitting signals corresponding to detected neutron flux

#37
20200365285
2020-11-19

Subcritical reactivity monitor utilizing prompt self-powered in-core detectors

#38
20200335236
2020-10-22

Method for determining at least one threshold value of at least one operating parameter of a nuclear reactor, and associated computer program and electronic system

#39
20200227181
2020-07-16

Nuclear reactor with in-vessel ex-core neutron detectors and corresponding control method

#40
20200219630
2020-07-09

Temperature measurement sensor using material with a temperature dependent neutron capture cross section

#41
20200176138
2020-06-04

Method for planting and harvesting radioisotopes on a mass production basis

#42
20200135351
2020-04-30

Self-powered in-core detector arrangement for measuring flux in a nuclear reactor core

#43
20200105426
2020-04-02

Self-powered in-core detector arrangement for measuring flux in a nuclear reactor core

#44
20200075187
2020-03-05

System and process for production and collection of radioisotopes

#45
20190392959
2019-12-26

Predicting Multiple Nuclear Fuel Failures, Failure Locations and Thermal Neutron Flux 3D Distributions Using Artificial Intelligent and Machine Learning

#46
20190378627
2019-12-12

Drive device for in-core neutron instrumentation system

#47
20190355486
2019-11-21

Control rod motion monitoring system and control rod motion monitoring method

#48
20190318835
2019-10-17

Nuclear reactor system transmitter device structured to wirelessly emit a signal based on detected neutron flux

#49
20190267145
2019-08-29

INCORE NEUTRON INSTRUMENTATION SYSTEM

#50
20190214157
2019-07-11

Control rod operation monitoring method and control rod operation monitoring system

#51
20190187303
2019-06-20

Detection apparatus and method

#52
20190180885
2019-06-13

Subcritical core reactivity bias projection technique

#53
20190148026
2019-05-16

Flange flush tool

#54
20190108921
2019-04-11

Apparatus for planting and harvesting radioisotopes on a mass production basis

#55
20180350473
2018-12-06

System and method for stand-off monitoring of nuclear reactors using neutron detection

#56
20180336975
2018-11-22

Radioisotope production target insert design and target harvesting methodology for long term irradiation in commercial nuclear reactors

#57
20180277268
2018-09-27

A METHOD FOR THE MANUFACTURE OF POWDER-FILLED SHAPED BODIES, SHAPED BODIES FOR INTRODUCTION INTO A COMMERCIAL NUCLEAR POWER REACTOR AND THE USE THEREOF

#58
20180218797
2018-08-02

In-core transmitter device structured to wirelessly emit signals corresponding to detected neutron flux

#59
20180122521
2018-05-03

System and process for production and collection of radioisotopes

#60
20180122520
2018-05-03

Incore nuclear instrumentation system

#61
20180033503
2018-02-01

Nuclear instrumentation system and method for locating the same

#62
20180019031
2018-01-18

Irradiation target handling device for moving a target into a nuclear reactor

#63
20180005715
2018-01-04

Out-of-core nuclear instrumentation device

#64
20170322328
2017-11-09

LONG-LIVED IN-CORE INSTRUMENTATION

#65
20170263342
2017-09-14

REAL-TIME REACTOR COOLANT SYSTEM BORON CONCENTRATION MONITOR UTILIZING AN ULTRASONIC SPECTROSCPOPY SYSTEM

#66
20170243663
2017-08-24

Lower end fixing body for improving flow path resistance of in-core detector

#67
20170229198
2017-08-10

Nuclear fuel assembly top nozzle having in-core instrument insertion structure using an upper core plate hollow guide pin

#68
20170206989
2017-07-20

In-containment ex-core detector system

#69
20170200516
2017-07-13

Device for and method of reconstructing axial measurement values in nuclear fuel

#70
20170062084
2017-03-02

Reactor instrumentation system and reactor

#71
20170062083
2017-03-02

Discharge apparatus usable for determining neutron flux

#72
20170047132
2017-02-16

EX-CORE NUCLEAR INSTRUMENTATION DEVICE

#73
20160358679
2016-12-08

SYSTEMS AND METHODS FOR DETERMINING AN AMOUNT OF FISSILE MATERIAL IN A REACTOR

#74
20160180977
2016-06-23

NEUTRON MEASUREMENT APPARATUS AND NEUTRON MEASUREMENT METHOD

#75
20150348659
2015-12-03

Water jet peening apparatus and water jet peening method

#76
20150348656
2015-12-03

NEUTRON FLUX LEVEL MEASUREMENT SYSTEM, NEUTRON FLUX LEVEL COMPUTING DEVICE AND NEUTRON FLUX LEVEL MEASUREMENT METHOD

#77
20150348655
2015-12-03

STABILITY COMPUTATION MONITORING DEVICE, REACTOR POWER STABILITY MONITORING SYSTEM AND REACTOR POWER STABILITY MONITORING METHOD

#78
20150332794
2015-11-19

Transportable monitoring system

#79
20150110235
2015-04-23

Method for monitoring boron dilution during a reactor outage

#80
20150055742
2015-02-26

Ion chamber radiation detector

#81
20140362966
2014-12-11

Neutron monitoring system

#82
20140362965
2014-12-11

Thermo-acoustic nuclear power distribution measurement assembly

#83
20140321592
2014-10-30

Self powered neutron detector

#84
20140270040
2014-09-18

Systems and methods for spent fuel pool subcriticality measurement and monitoring

#85
20140192944
2014-07-10

Neutron flux mapping system and control method for neutron flux mapping system

#86
20140133620
2014-05-15

Method of validating nuclear reactor in-vessel detector output signals

#87
20140105346
2014-04-17

Neutron detection apparatus

#88
20140064425
2014-03-06

Transverse in-core probe monitoring and calibration device for nuclear power plants, and method thereof

#89
20140050291
2014-02-20

Power monitoring system

#90
20140050290
2014-02-20

METHOD OF CONSTRUCTING PSEUDO HOT PIN POWER DISTRIBUTION USING IN-CORE DETECTOR SIGNAL-BASED PLANAR RADIAL PEAKING FACTORS IN CORE OPERATING LIMIT SUPERVISORY SYSTEM

#91
20130336439
2013-12-19

NEUTRON FLUX DETECTOR GUIDING APPARATUS

#92
20130334444
2013-12-19

Radiation shielding method and device, and method of processing structure

#93
20130287159
2013-10-31

Core monitoring system

#94
20130266110
2013-10-10

Traveling reactor power monitoring system and method for monitoring driving torque

#95
20130259182
2013-10-03

TRAVELING REACTOR POWER MONITORING SYSTEM AND METHOD FOR CONTROLING RETRACTING A TRAVELING PROBE

#96
20130243146
2013-09-19

Ex-core nuclear instrumentation system

#97
20130182810
2013-07-18

TRAVELING REACTOR POWER MONITORING SYSTEM AND METHOD FOR DRIVING A TRAVELING PROBE

#98
20130166223
2013-06-27

Methods, systems, and computer program products for generating fast neutron spectra

#99
20130142298
2013-06-06

IN-CORE NUCLEAR INSTRUMENTATION APPARATUS

#100
20130083879
2013-04-04

In-core instrument thimble assembly

#101
20130016802
2013-01-17

OSCILLATION POWER RANGE MONITOR AND METHOD OF CHECKING SOUNDNESS THEREOF

#102
20130013282
2013-01-10

Apparatus, method and program for monitoring nuclear thermal hydraulic stability of nuclear reactor

#103
20130010912
2013-01-10

Neutron Monitoring Systems Including Gamma Thermometers And Methods Of Calibrating Nuclear Instruments Using Gamma Thermometers

#104
20120321028
2012-12-20

TIP system and TIP monitoring control equipment

#105
20120307955
2012-12-06

Gamma thermometer axial apparatus and method for monitoring reactor core in nuclear power plant

#106
20120281801
2012-11-08

Core thermal limit value monitoring device, core monitoring system and core thermal limit value monitoring method

#107
20120263266
2012-10-18

Method and device for detecting the drop of a cluster in a nuclear reactor

#108
20120257706
2012-10-11

REACTOR VESSEL INTERNALS RADIATION ANALYSES

#109
20120219101
2012-08-30

METHOD FOR ASSISTING IN THE OPERATION OF A NUCLEAR REACTOR

#110
20120201339
2012-08-09

Ex-core nuclear instrumentation system

#111
20120189087
2012-07-26

OSCILLATION POWER RANGE MONITOR AND METHOD OF CHECKING SOUNDNESS THEREOF

#112
20120177167
2012-07-12

Self-powered wireless in-core detector

#113
20120177166
2012-07-12

Wireless in-core neutron monitor

#114
20120140864
2012-06-07

Protection of reactor cores from unstable density wave oscillators

#115
20120121054
2012-05-17

Apparatus for inspecting and testing startup range neutron monitoring system

#116
20120091327
2012-04-19

Self-calibrating, highly accurate, long-lived, dual rhodium vanadium emitter nuclear in-core detector

#117
20120082283
2012-04-05

Method of using micro-nano-hetro structures to make radiation detection systems and devices with applications

#118
20120057667
2012-03-08

Resonance calculation program and analyzing apparatus

#119
20120007634
2012-01-12

Digital processing monitoring device

#120
20110293058
2011-12-01

Method for measuring the neutron flux in the core of a nuclear reactor using a cobalt detector and associated device

#121
20110286566
2011-11-24

Nuclear reactor oscillation power range monitor, and method and program therefor

#122
20110274230
2011-11-10

Device for online measurement of a flow of fast and epithermal neutrons

#123
20110268239
2011-11-03

METHOD OF CALIBRATING EXCORE DETECTORS IN A NUCLEAR REACTOR

#124
20110219609
2011-09-15

Under vessel local power range monitor exchange tool

#125
20110110483
2011-05-12

Methods and systems for migrating fuel assemblies in a nuclear fission reactor

#126
20110110482
2011-05-12

Methods and systems for migrating fuel assemblies in a nuclear fission reactor

#127
20110110481
2011-05-12

Methods and systems for migrating fuel assemblies in a nuclear fission reactor

#128
20110110480
2011-05-12

Methods and systems for migrating fuel assemblies in a nuclear fission reactor

#129
20110064181
2011-03-17

Neutron monitoring systems including gamma thermometers and methods of calibrating nuclear instruments using gamma thermometers

#130
20110026662
2011-02-03

Instrument removal system

#131
20110002432
2011-01-06

INCORE INSTRUMENT CORE PERFORMANCE VERIFICATION METHOD

#132
20100303190
2010-12-02

Method of producing mixed in-core maps and application to the calibration of fixed instrumentation

#133
20100254505
2010-10-07

Methods and apparatuses for operating nuclear reactors and for determining power levels in the nuclear reactors

#134
20100254504
2010-10-07

Power Monitoring System

#135
20100220831
2010-09-02

Moderator temperature coefficient measurement apparatus

#136
20100220830
2010-09-02

Axial power distribution control method, axial power distribution control system and axial power distribution control program

#137
20100104060
2010-04-29

Optical gamma thermometer

#138
20100067643
2010-03-18

High dielectric insulated coax cable for sensitive impedance monitoring

#139
20090316851
2009-12-24

Passage selector of reactor in-core nuclear-measuring apparatus

#140
20090174397
2009-07-09

INTERNAL INSTRUMENTATION SYSTEM FOR A NUCLEAR REACTOR, THE SYSTEM HAVING AN ADVANCED ELECTRONIC CARD, AND A CORRESPONDING METHOD OF MODIFYING AN INTERNAL INSTRUMENTATION SYSTEM OF A NUCLEAR REACTOR

#141
20090168946
2009-07-02

Thermal limit analysis with hot-channel model for boiling water reactors

#142
20090154633
2009-06-18

Tranverse in-core probe monitoring and calibration device for nuclear power plants, and method thereof

#143
20090135984
2009-05-28

Gamma thermometer axial apparatus and method for monitoring reactor core in nuclear power plant

#144
20090052605
2009-02-26

HANDLING SYSTEM FOR IN-CORE DETECTOR THIMBLE TUBE OF REACTOR

#145
20090003506
2009-01-01

Apparatus for inspecting and testing startup range neutron monitoring system

#146
20070140404
2007-06-21

Instrument removal system

#147
20070018110
2007-01-25

Micro neutron detectors

#148
20060291606
2006-12-28

Micro neutron detectors

#149
20060171499
2006-08-03

Protection of reactor cores from unstable density wave oscillations

#150
20060165209
2006-07-27

Neutron detector assembly with variable length rhodium emitters

#151
20060056573
2006-03-16

Micro neutron detectors

#152
20060043308
2006-03-02

Micro neutron detectors

#153
20060023828
2006-02-02

Micro neutron detectors

#154
20050154478
2005-07-14

Neutron flux mapping system for nuclear reactor