JPS6420496A - Radiation measuring instrument for detecting fuel failure - Google Patents
Radiation measuring instrument for detecting fuel failureInfo
- Publication number
- JPS6420496A JPS6420496A JP62174782A JP17478287A JPS6420496A JP S6420496 A JPS6420496 A JP S6420496A JP 62174782 A JP62174782 A JP 62174782A JP 17478287 A JP17478287 A JP 17478287A JP S6420496 A JPS6420496 A JP S6420496A
- Authority
- JP
- Japan
- Prior art keywords
- radioactivity
- nuclide
- concn
- gas
- exhaust gas
- 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.)
- Pending
Links
Classifications
-
- 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
PURPOSE:To exactly detect the presence or absence of a fuel failure by computing the gross radioactivity concn. of the noble gas over the entire part of nuclides except the radioactivity concn. of the disturbing nuclide and computing a radioactivity emissivity from the radioactivity concn. of the noble gas of every nuclide and the flow rate of the exhaust gas of an exhaust gas system. CONSTITUTION:The steam from a nuclear reactor 1 is discharged to a condenser 5 after working in a steam turbine 4. The exhaust gas is diverted as a sampling gas to a radiation measuring instrument alpha for detecting the fuel failure through an exhaust gas dehumidifying cooler 10 and a sampling pipe 12 and most of the exhaust gas is decreased in the radioactivity down to a safe level in an active carbon adsorption column 11. The sampling gas is diluted to a prescribed dilution rate by a dilution vessel. The radiation level of the noble gas is detected by a Ge semiconductor detector of the radiation measuring instrument. The result of the detection is spectrally analyzed by an analyzer of a signal processor by which the count rate of every nuclide is determined. The gross radioactivity concn. of the noble gas of the entire nuclide excluding the disturbing nuclide is computed from this count rate. The fluctuation in the radioactivity concn. of the noble gas in the case of the fuel failure in a reactor core 2 is thus exactly detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174782A JPS6420496A (en) | 1987-07-15 | 1987-07-15 | Radiation measuring instrument for detecting fuel failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174782A JPS6420496A (en) | 1987-07-15 | 1987-07-15 | Radiation measuring instrument for detecting fuel failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6420496A true JPS6420496A (en) | 1989-01-24 |
Family
ID=15984573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62174782A Pending JPS6420496A (en) | 1987-07-15 | 1987-07-15 | Radiation measuring instrument for detecting fuel failure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420496A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH682188A5 (en) * | 1991-07-18 | 1993-07-30 | Asea Brown Boveri | |
| CH682524A5 (en) * | 1991-09-30 | 1993-09-30 | Asea Brown Boveri | Device for monitoring the atmosphere inside the containment vessel of a reactor plant. |
| JP2013134204A (en) * | 2011-12-27 | 2013-07-08 | Mitsubishi Electric Corp | Condenser exhaust gas monitor |
-
1987
- 1987-07-15 JP JP62174782A patent/JPS6420496A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH682188A5 (en) * | 1991-07-18 | 1993-07-30 | Asea Brown Boveri | |
| CH682524A5 (en) * | 1991-09-30 | 1993-09-30 | Asea Brown Boveri | Device for monitoring the atmosphere inside the containment vessel of a reactor plant. |
| JP2013134204A (en) * | 2011-12-27 | 2013-07-08 | Mitsubishi Electric Corp | Condenser exhaust gas monitor |
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