GB1138288A - Method of flux separation in nuclear reactors and structure therefor - Google Patents
Method of flux separation in nuclear reactors and structure thereforInfo
- Publication number
- GB1138288A GB1138288A GB11274/66A GB1127466A GB1138288A GB 1138288 A GB1138288 A GB 1138288A GB 11274/66 A GB11274/66 A GB 11274/66A GB 1127466 A GB1127466 A GB 1127466A GB 1138288 A GB1138288 A GB 1138288A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- thermal
- fast
- region
- neutron
- 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
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/18—Moderator or core structure; Selection of materials for use as moderator characterised by the provision of more than one active zone
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/28—Control of nuclear reaction by displacement of the reflector or parts thereof
-
- 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)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
1,138,288. Controlling reactors. C. N. KLAHR. 15 March, 1966, No. 11274/66. Heading G6C. In a nuclear reactor having separate fast and thermal regions, a reflector is mounted between the two, in order to limit neutron coupling. The ratio of the thermal fluxes on the two sides of the reflector is defined as a function of the albedo of the reflector material. Control of the reactivity is effected by variation of the reflector thickness. Initially, power is produced mainly in the thermal region and as fuel is consumed there, the reflector thickness is reduced to permit thermal neutron leakage into the fast region to raise the power therein. Simultaneously, an increased diffusion of neutrons from the fast to the thermal region takes place, the whole reaction being maintained by this neutron flow with sufficient excess reactivity for xenon override. The fast region contains high enrichment fuel and has a low power density while the thermal region contains low enrichment fuel and has a high power density. The reflector consists of a metallic oxide clad in stainless steel. The coolant may be light or heavy water, or gas, with the distribution arranged so as to restrict the moderation effect in the fast region. The high enrichment fuel comprises U-233, U-235 and Pn-239.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11274/66A GB1138288A (en) | 1966-03-15 | 1966-03-15 | Method of flux separation in nuclear reactors and structure therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11274/66A GB1138288A (en) | 1966-03-15 | 1966-03-15 | Method of flux separation in nuclear reactors and structure therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1138288A true GB1138288A (en) | 1968-12-27 |
Family
ID=9983201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11274/66A Expired GB1138288A (en) | 1966-03-15 | 1966-03-15 | Method of flux separation in nuclear reactors and structure therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1138288A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552920A1 (en) * | 1983-09-30 | 1985-04-05 | Framatome Sa | HEART FOR A NUCLEAR REACTOR COOLED BY WATER UNDER PRESSURE |
| EP0184134A1 (en) * | 1984-11-28 | 1986-06-11 | Hitachi, Ltd. | Method of operating of a light water moderated and cooled nuclear reactor |
| CN107799195A (en) * | 2017-11-24 | 2018-03-13 | 北京新核医疗科技有限公司 | Horizontal neutron beam illuminating method, MNSR Reactor neutron therapy device and medical system |
| CN109859860A (en) * | 2019-02-01 | 2019-06-07 | 中国原子能科学研究院 | Research reactor |
| CN115331844A (en) * | 2022-09-08 | 2022-11-11 | 中国核动力研究设计院 | Method and system for measuring value of control rod under subcritical condition of nuclear reactor |
-
1966
- 1966-03-15 GB GB11274/66A patent/GB1138288A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552920A1 (en) * | 1983-09-30 | 1985-04-05 | Framatome Sa | HEART FOR A NUCLEAR REACTOR COOLED BY WATER UNDER PRESSURE |
| EP0184134A1 (en) * | 1984-11-28 | 1986-06-11 | Hitachi, Ltd. | Method of operating of a light water moderated and cooled nuclear reactor |
| CN107799195A (en) * | 2017-11-24 | 2018-03-13 | 北京新核医疗科技有限公司 | Horizontal neutron beam illuminating method, MNSR Reactor neutron therapy device and medical system |
| CN107799195B (en) * | 2017-11-24 | 2024-01-09 | 北京新核核工程科技有限公司 | Horizontal neutron beam irradiation method, micro-reactor neutron treatment device and medical system |
| CN109859860A (en) * | 2019-02-01 | 2019-06-07 | 中国原子能科学研究院 | Research reactor |
| CN115331844A (en) * | 2022-09-08 | 2022-11-11 | 中国核动力研究设计院 | Method and system for measuring value of control rod under subcritical condition of nuclear reactor |
| CN115331844B (en) * | 2022-09-08 | 2024-04-23 | 中国核动力研究设计院 | Method and system for measuring value of control rod under subcritical nuclear reactor |
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