ES332091A1 - Process and apparatus for measuring the doubling time of a nuclear reactor - Google Patents
Process and apparatus for measuring the doubling time of a nuclear reactorInfo
- Publication number
- ES332091A1 ES332091A1 ES332091A ES332091A ES332091A1 ES 332091 A1 ES332091 A1 ES 332091A1 ES 332091 A ES332091 A ES 332091A ES 332091 A ES332091 A ES 332091A ES 332091 A1 ES332091 A1 ES 332091A1
- Authority
- ES
- Spain
- Prior art keywords
- doubling time
- nuclear reactor
- time
- vibrators
- stable
- 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
- G21C17/14—Period meters
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
Abstract
A proportional counter neutron detector is associated with a nuclear reactor and a digital circuit to evoluate the reactor doubling time defined by the expression where T D = doubling time, n = number of neutrons, A = reaction rate at time t = 0. The detector output passes to a multivibrator stage and then to consecutive stages of bi-stable multi-vibrators, the outputs of which are supplied by a logic unit and are then counted and compared with an electronic clock reference. Gamma ray discrimination is effected by a threshold analyzer. It is shown that with a large number of bi-stable multi-vibrators, the switching time of the bent bi-stable is approximately equal to the required value of T D .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR34367A FR1460759A (en) | 1965-10-08 | 1965-10-08 | Method and apparatus for measuring the doubling time of a nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES332091A1 true ES332091A1 (en) | 1968-12-01 |
Family
ID=8590094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES332091A Expired ES332091A1 (en) | 1965-10-08 | 1966-10-08 | Process and apparatus for measuring the doubling time of a nuclear reactor |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE687371A (en) |
| CH (1) | CH463637A (en) |
| DE (1) | DE1290266B (en) |
| ES (1) | ES332091A1 (en) |
| FR (1) | FR1460759A (en) |
| GB (1) | GB1106320A (en) |
| LU (1) | LU52118A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1361401A (en) * | 1963-04-02 | 1964-05-22 | Commissariat Energie Atomique | Device for measuring the doubling time of an exponentially varying quantity |
-
1965
- 1965-10-08 FR FR34367A patent/FR1460759A/en not_active Expired
-
1966
- 1966-09-26 BE BE687371D patent/BE687371A/xx unknown
- 1966-10-04 CH CH1429466A patent/CH463637A/en unknown
- 1966-10-06 LU LU52118A patent/LU52118A1/xx unknown
- 1966-10-07 GB GB45000/66A patent/GB1106320A/en not_active Expired
- 1966-10-07 DE DEC40306A patent/DE1290266B/en active Pending
- 1966-10-08 ES ES332091A patent/ES332091A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1290266B (en) | 1969-03-06 |
| LU52118A1 (en) | 1966-12-08 |
| FR1460759A (en) | 1966-01-07 |
| BE687371A (en) | 1967-03-01 |
| CH463637A (en) | 1968-10-15 |
| GB1106320A (en) | 1968-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1397231A (en) | Method of and apparatus for determining radiation energy distri butions | |
| GB1038113A (en) | Improvements in devices for analyzing physical phenomena, and in particular nuclear phenomena | |
| ES332091A1 (en) | Process and apparatus for measuring the doubling time of a nuclear reactor | |
| ES431957A1 (en) | Plutonium monitor | |
| GB839940A (en) | Nuclear reactor control | |
| GB1002880A (en) | Boron-12 beta decay neutron detector | |
| GB1078703A (en) | Method and apparatus for data processing | |
| GB1352544A (en) | Digital clocks | |
| ES447532A1 (en) | Digital phase-locked loop for speed measurement, in particular for use in antiskid control systems | |
| GB975742A (en) | Improvements in or relating to nuclear reactor control | |
| GB898219A (en) | Device for selectively detecting the occurence of fission products in gases | |
| FR2272392A1 (en) | Apparatus determining boron concentration in water - has measuring cell detecting radiation from neutron source | |
| FR1527245A (en) | Fast neutron nuclear reactors, and method of operation thereof | |
| GB1260620A (en) | System for confirming the validity of repetitively sampled digital data | |
| GB917776A (en) | Method of measuring the amount of material fissile by thermal neutrons and present in any arbitrary substance, particularly for controlling the state of exhaustion of fuel elements in nuclear reactors | |
| GB1169769A (en) | Improvements in or relating to an Electronic Numerical Dividing Apparatus | |
| Welford | Digital methods of producing random and variable time intervals. | |
| GB1102582A (en) | Improvements in or relating to nuclear radiation flux measuring apparatus | |
| Mel'nikov | MULTIDIMENSIONAL MEASUREMENTS OF SPECTRA IN NUCLEAR PHYSICS | |
| GB1309761A (en) | ||
| DESSAUER et al. | Production of transplutonium elements at Savannah River(Irradiation of plutonium 239 to produce plutonium 242, americium 243, and curium 244) | |
| HELLER | Energy and time beta-ray spectra of fission products of u 235 and pu 239 by fission neutrons(Energy and time beta-ray spectra from fission of uranium and plutonium) | |
| GB932536A (en) | Improvements in or relating to arrangements for distinguishing between two radiations | |
| JARRETT | Division of isotopes development programs(Radioactive isotopes sources, production, and uses)[Quarterly Report, Aug.- Oct. 1971] | |
| Tomkins | INDICATORS, COUNTERS AND OTHER INSTRUMENTS OPERATED BY THE AID OF BETA OR GAMM RADIATION |