GB1511632A - Method of measuring the concentration of at least one fissionable component within a fuel rod or element - Google Patents
Method of measuring the concentration of at least one fissionable component within a fuel rod or elementInfo
- Publication number
- GB1511632A GB1511632A GB2417/77A GB241777A GB1511632A GB 1511632 A GB1511632 A GB 1511632A GB 2417/77 A GB2417/77 A GB 2417/77A GB 241777 A GB241777 A GB 241777A GB 1511632 A GB1511632 A GB 1511632A
- Authority
- GB
- United Kingdom
- Prior art keywords
- concentration
- fission chamber
- fuel element
- neutrons
- fission
- 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
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
- G21C17/063—Burn-up control
-
- 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)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Radiation (AREA)
Abstract
1511632 Measurement of the concentration of fissionable fuel in fuel elements INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 20 Jan 1977 [21 Jan 1976] 02417/77 Heading G6C The concentration of at least one fissile component within a fuel element is measured by subjecting the fuel element 4, when housed within a container 14 containing a liquid metal, e.g. sodium, to a neutron field so as to cause it to emit neutrons; and by measuring the intensity of the neutrons emitted from the fissile component(s) by comparing the readings obtained by at least one first fission chamber and at least one second fission chamber, the fission chambers being mounted in units 20. The or each first fission chamber has on one or more of its wall surfaces a coating having a composition comprising the fissile component(s), and the or each second fission chamber having on one or more of its wall surfaces a coating having a composition different from the first-mentioned composition. The fuel element 4 within the container 14 is drawn into a cylindrical column 17 by a lifting device. The column 17 is enclosed by a cylinder 18 of BeO which emits neutrons when acted upon by high-energy γ-rays. Four collimators 19 disposed in the cylinder 18 guide neutrons from the fuel element 4 to four fission chamber units 20. The measuring apparatus is enclosed within a screening block 21, and may be mounted upon the base of a fuel element transfer device (Fig. 2, not shown). To provide a measure of the concentration as a ratio of the concentration of one fissile component with respect to that of another fissile component, a thin U-235 wall coating may be used in one fission chamber and a thin Pu-239 wall coating in a second fission chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT39376A AT344830B (en) | 1976-01-21 | 1976-01-21 | METHOD AND DEVICE FOR MEASURING THE FOCUS MATERIAL CONCENTRATION IN LIQUID METAL COOLED FUEL ELEMENTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1511632A true GB1511632A (en) | 1978-05-24 |
Family
ID=3489401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2417/77A Expired GB1511632A (en) | 1976-01-21 | 1977-01-20 | Method of measuring the concentration of at least one fissionable component within a fuel rod or element |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS52104692A (en) |
| AT (1) | AT344830B (en) |
| DE (1) | DE2701907A1 (en) |
| FR (1) | FR2339233A1 (en) |
| GB (1) | GB1511632A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2437002A1 (en) * | 1978-09-25 | 1980-04-18 | Commissariat Energie Atomique | G RADIATION DETECTOR FOR CONTROLLING FUEL NEEDLES |
-
1976
- 1976-01-21 AT AT39376A patent/AT344830B/en not_active IP Right Cessation
-
1977
- 1977-01-19 FR FR7701481A patent/FR2339233A1/en active Granted
- 1977-01-19 DE DE19772701907 patent/DE2701907A1/en not_active Withdrawn
- 1977-01-20 GB GB2417/77A patent/GB1511632A/en not_active Expired
- 1977-01-21 JP JP574177A patent/JPS52104692A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2701907A1 (en) | 1977-08-04 |
| FR2339233A1 (en) | 1977-08-19 |
| ATA39376A (en) | 1977-12-15 |
| FR2339233B1 (en) | 1981-11-20 |
| AT344830B (en) | 1978-08-10 |
| JPS52104692A (en) | 1977-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0151880A3 (en) | Radiation measuring apparatus and method | |
| US4645935A (en) | Method and apparatus for measuring thermal neutron absorption cross-section | |
| Kotrappa et al. | Elevation correction factors for E-PERM radon monitors | |
| GB1511632A (en) | Method of measuring the concentration of at least one fissionable component within a fuel rod or element | |
| EP0091046A3 (en) | Measuring device for physical values | |
| US3621255A (en) | Two detector pulse neutron logging porosity technique | |
| GB863886A (en) | Improvements relating to apparatus for testing the moisture content and density of soils | |
| Zagórski et al. | Čerenkov light self-absorption as the indicator of intermediate changes during microsecond pulse radiolysis | |
| Mills et al. | The precision measurement of single ion diffusion coefficients | |
| ES2030411T3 (en) | DOSIMETRIC METHOD FOR HIGH FLUENCE OF NEUTRONS. | |
| CA1098222A (en) | Device for light flux attenuation, especially for additional quenching of scintillations at radionuclide activity determination | |
| GB963642A (en) | Apparatus for the measurement of low levels of beta-radioactivity in liquids | |
| JPH05133873A (en) | Fissionable material detecting apparatus | |
| JPS5493795A (en) | Concentration mesearing method and device of neutron strong absorbent in fuel rod | |
| SU512641A1 (en) | Method of identifying copper | |
| US3763371A (en) | Method and apparatus for obtaining the relation between the channels ratio and the efficiency in a liquid scintillation standard sample | |
| JPS5432387A (en) | Analyzing apparatus | |
| Block et al. | Neutron dose measurements by an attenuation technique | |
| HIROSHI et al. | Nondestructive determination of average burnup for irradiated fuel rods(Nondestructive gamma ray detection of average burnup for irradiated fuel rods) | |
| SU988102A2 (en) | Device for determining concentration of fissionable substance in fuel specimens without destruction | |
| Hurst | Paper 23 MEASUREMENT OF DOSE FROM COEXISTING NEUTRON AND GAMMA RADIATION | |
| VACHUND et al. | USE OF GAMMA EMISSION FROM AMERICUM-241 TO MEASURE THE WATER CONTENT OF NONSATURATED SOIL SAMPLES(FRENCH) | |
| JPS57153287A (en) | Measuring method for minute quantity of radiation | |
| SU351191A1 (en) | A method for simulating gram-neutron determination of beryllium concentration | |
| SU450508A1 (en) | Method for measuring absolute content of uranium and spontaneously fissile isotopes of transuranium elements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |