| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fa749be221866b8c1fe3560ef33b58e6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N23-09 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N23-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N23-06 |
| filingDate |
1974-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1975-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f3e6f38cf80b2ae90b9c0fb6028c5d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e5160e2da8431b3e57cfdc07fc476db |
| publicationDate |
1975-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3898467-A |
| titleOfInvention |
Method and apparatus for continuous monitoring and control of neutron absorption properties of chemical shim with temperature compensation |
| abstract |
An apparatus and method of operation thereof, to continuously monitor and control the neutron absorption properties of chemical shim used in regulating reactivity of a pressurized water nuclear reactor. Coolant-moderator fluid, containing soluble chemical shim with a neutron absorption property is continuously passed through a chamber having at least one neutron detector spaced from a neutron source of known strength. Utilizing the neutron absorptiometery principle, a signal relating to the concentration of the chemical shim in the coolant-moderator is derived. In addition, the temperature of the sample of coolant is obtained and a temperature compensation signal is generated. The signal related to chemical shim concentration is modified by the temperature compensation signal to correct for temperature related effects. The corrected signal is then applied to a readout and alarm device so that constant monitoring of the shim concentration may be accomplished; additionally, the signal may be applied to maintain the concentration of the chemical shim in the coolant-moderator at a desired level. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4017358-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102246242-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3118666-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9818136-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009166556-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022148731-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3061100-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6345080-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3942014-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4394346-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102246242-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7723675-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4876058-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104793234-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104793234-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102008016310-A1 |
| priorityDate |
1974-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |