GB947104A - Neutron flux measuring apparatus - Google Patents
Neutron flux measuring apparatusInfo
- Publication number
- GB947104A GB947104A GB38479/61A GB3847961A GB947104A GB 947104 A GB947104 A GB 947104A GB 38479/61 A GB38479/61 A GB 38479/61A GB 3847961 A GB3847961 A GB 3847961A GB 947104 A GB947104 A GB 947104A
- Authority
- GB
- United Kingdom
- Prior art keywords
- outlet
- unit
- fluid
- inlets
- activity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
947,104. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 17,1962 [Oct. 27,1961], No. 38479/61. Heading G6C. Neutron flux measuring apparatus comprises an irradiation unit of low neutron absorption displaced at a locality at which the flux is to be measured, a flowpath for a neutron activatable fluid through the unit between an inlet and an outlet, a monitor to measure the radio-activity of the fluid, and an outlet tube connecting the outlet to the monitors, the flowpath through the unit being such that the time taken for the fluid to pass through the unit is large relative to the time taken for the fluid to pass through the outlet tube so that the activity of the fluid measured by the monitor affords a measure of the of the neutron flux at the locality. In the drawing the irradiation unit 10 comprises a thin walled chamber of magnesium alloy provided with inlets 12 at one end, an outlet 13 at the other end and thin transverse porous partitions 17 in its interior. The outlet 13 and a reference outlet 19 are connected by fine bore capillary tubes housed in a braided cable 21 to counters 22, the outputs of which are compared in unit 23 and fed to a recorder 24. In operation a reduced pressure is maintained at the counters so that gas surrounding unit 10 is drawn through inlets 12 and reaches outlet 13 after about 50 seconds; the gas then takes about one second to travel from the outlet 13 to the counter 22. The gas may be argon or carbon dioxide and may be the reactor coolant. The unit 10 may be lowered into an empty fuel channel of a nuclear reactor by means of cable 21 and winch 29, and to scan the flux distribution along the channel the wind may be operated to cause the unit 10 to move up or down the channel at a constant speed, e.g. 0. 3 cm/sec., with continuous recording of the activity of the fluid passing through it. A plurality of units may be provided at various localities in the reactor core. The fluid passing through the irradiation unit need not be the reactor coolant or the gas surrounding the unit; a conduit may join outlet 19 to inlets 12 so that activatable fluid can be supplied through one of the capillary tubes in cable 21.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38479/61A GB947104A (en) | 1961-10-27 | 1961-10-27 | Neutron flux measuring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB38479/61A GB947104A (en) | 1961-10-27 | 1961-10-27 | Neutron flux measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB947104A true GB947104A (en) | 1964-01-22 |
Family
ID=10403721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38479/61A Expired GB947104A (en) | 1961-10-27 | 1961-10-27 | Neutron flux measuring apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB947104A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666664A (en) * | 1982-04-15 | 1987-05-19 | Westinghouse Electric Corp. | Coolant flow paths within a nuclear fuel assembly |
US4844858A (en) * | 1987-03-31 | 1989-07-04 | Westinghouse Electric Corp. | Reactor cavity dosimetry system and method |
GB2284257A (en) * | 1993-11-26 | 1995-05-31 | Sensor Dynamics Ltd | Remote measurement of physical parameters |
USRE38052E1 (en) | 1992-05-01 | 2003-04-01 | Sensor Dynamics, Limited | Sensing apparatus for sensing pressure or temperature in oil wells, including transmitter relaying pressure or temperature information to a remote control point |
US6817257B2 (en) | 1996-03-29 | 2004-11-16 | Sensor Dynamics Limited | Apparatus for the remote measurement of physical parameters |
CN114646998A (en) * | 2022-03-24 | 2022-06-21 | 西北核技术研究所 | High-flux fast neutron energy spectrum measuring system and method based on gas activation |
-
1961
- 1961-10-27 GB GB38479/61A patent/GB947104A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4666664A (en) * | 1982-04-15 | 1987-05-19 | Westinghouse Electric Corp. | Coolant flow paths within a nuclear fuel assembly |
US4844858A (en) * | 1987-03-31 | 1989-07-04 | Westinghouse Electric Corp. | Reactor cavity dosimetry system and method |
USRE38052E1 (en) | 1992-05-01 | 2003-04-01 | Sensor Dynamics, Limited | Sensing apparatus for sensing pressure or temperature in oil wells, including transmitter relaying pressure or temperature information to a remote control point |
GB2284257A (en) * | 1993-11-26 | 1995-05-31 | Sensor Dynamics Ltd | Remote measurement of physical parameters |
US5570437A (en) * | 1993-11-26 | 1996-10-29 | Sensor Dynamics, Ltd. | Apparatus for the remote measurement of physical parameters |
GB2284257B (en) * | 1993-11-26 | 1998-06-10 | Sensor Dynamics Ltd | Apparatus for the remote measurement of physical parameters |
USRE37283E1 (en) | 1993-11-26 | 2001-07-17 | Erhard Luther Edgar Kluth | Apparatus for the remote measurement of physical parameters |
US6817257B2 (en) | 1996-03-29 | 2004-11-16 | Sensor Dynamics Limited | Apparatus for the remote measurement of physical parameters |
CN114646998A (en) * | 2022-03-24 | 2022-06-21 | 西北核技术研究所 | High-flux fast neutron energy spectrum measuring system and method based on gas activation |
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