GB989392A - Improvements in or relating to fuel elements for nuclear reactors - Google Patents
Improvements in or relating to fuel elements for nuclear reactorsInfo
- Publication number
- GB989392A GB989392A GB43817/62A GB4381762A GB989392A GB 989392 A GB989392 A GB 989392A GB 43817/62 A GB43817/62 A GB 43817/62A GB 4381762 A GB4381762 A GB 4381762A GB 989392 A GB989392 A GB 989392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel
- fuel element
- gas
- disc
- radio
- 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
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/04—Detecting burst slugs
- G21C17/048—Detecting burst slugs characterised by a special construction of fuel elements, e.g. by a confined "tracer"
-
- 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)
- Examining Or Testing Airtightness (AREA)
Abstract
989,392. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 7, 1963 [Nov. 20, 1962], No. 43817/62. Heading G6C. A nuclear fuel element constructed to enable leak tests to be conducted on it comprises nuclear fuel enclosed in a sheath closed by one or more closure members and one or more free spaces at selected positions, said space or spaces being filled with a gas containing a radio-active tracer gas. A fuel rod 1 enclosed in a magnesium sheath 2 has abutting its end a porous insulating disc 5. The can is closed by a screwed-in end plug 3 seal welded at 4. The porous sintered alumina disc contains helium having 0.06% krypton 85 mixed with it. In two further embodiments, the porous insulator may be replaced by a non porous disc having a recessed face to act as a gas pocket (Fig. 2, not shown), or by a perforated disc (Fig. 3, 4, not shown). Testing procedure. The advantage of the invention over previous methods of leak detection is that whereas previously a fuel element which had been stored prior to installation might pass a final leak test because the gas in it had already leaked away, the present invention provides a method of testing which measures the amount of trapped gas which has been retained in the fuel element since manufacture. Two radio-activity signals are measured, one at a position adjacent the end cap, and a second at a point midway along the fuel element. The two readings are subtracted one from the other to cancel the radio-activity signal emmanating from the fuel, and the result is compared with values obtained from other fuel elements stored for a similar time, and with a theoretical optimum value for a leak-free fuel element which is based on the amount of krypton as contained in the fuel element and which takes account of the decay which will have taken place. Specification 897,232 is referred to.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB43817/62A GB989392A (en) | 1962-11-20 | 1962-11-20 | Improvements in or relating to fuel elements for nuclear reactors |
| GB43818/62A GB989393A (en) | 1962-11-20 | 1962-11-20 | Improvements in or relating to nuclear reactor fuel elements |
| FR954307A FR1383186A (en) | 1962-11-20 | 1963-11-19 | Fuel cartridge for nuclear reactor |
| BE640220A BE640220A (en) | 1962-11-20 | 1963-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB43817/62A GB989392A (en) | 1962-11-20 | 1962-11-20 | Improvements in or relating to fuel elements for nuclear reactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB989392A true GB989392A (en) | 1965-04-14 |
Family
ID=10430422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43817/62A Expired GB989392A (en) | 1962-11-20 | 1962-11-20 | Improvements in or relating to fuel elements for nuclear reactors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB989392A (en) |
-
1962
- 1962-11-20 GB GB43817/62A patent/GB989392A/en not_active Expired
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