JPS57184991A - Measuring device for neutron flux in nuclear reactor - Google Patents
Measuring device for neutron flux in nuclear reactorInfo
- Publication number
- JPS57184991A JPS57184991A JP56071830A JP7183081A JPS57184991A JP S57184991 A JPS57184991 A JP S57184991A JP 56071830 A JP56071830 A JP 56071830A JP 7183081 A JP7183081 A JP 7183081A JP S57184991 A JPS57184991 A JP S57184991A
- Authority
- JP
- Japan
- Prior art keywords
- time
- sensitivity
- deltat
- convertor
- neutron flux
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
- G01T3/006—Measuring neutron radiation using self-powered detectors (for neutrons as well as for Y- or X-rays), e.g. using Compton-effect (Compton diodes) or photo-emission or a (n,B) nuclear reaction
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Measurement Of Radiation (AREA)
Abstract
PURPOSE:To enable correction of sensitivity by a simple electronic circuit, by a method wherein, in the case of a time tn-1=tn-DELTAt before a time, using only sensitivity Sn-1 and neutron flux PHIn-1, sensitivity Sn at the time t=tn is found at intervals DELTAt of a constant time. CONSTITUTION:After the output current of a self-output type neutron detector 1 is amplified by a current amplifier 2, it is supplied to an analogue/digital convertor (A/D convertor). After a time DELTAt has elapsed (or at tt-1=tn-DELTAt), a signal is generated at the A/D convertor 3 from a timer 6, and the A/D convertor 3 converts an input voltage, proportioning a current neutron detecting signal current, into a digital signal by means of the signal. At the time tn-1=tn-DELTAt, using only sensitivity Sn-1 and a neutron flux PHIn-1, sensitivity Sn at a time t=tn is found at intervals DELTAt of a constant time, and this permits the correction of sensitivity by means of a simple constitution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56071830A JPS57184991A (en) | 1981-05-09 | 1981-05-09 | Measuring device for neutron flux in nuclear reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56071830A JPS57184991A (en) | 1981-05-09 | 1981-05-09 | Measuring device for neutron flux in nuclear reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57184991A true JPS57184991A (en) | 1982-11-13 |
Family
ID=13471847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56071830A Pending JPS57184991A (en) | 1981-05-09 | 1981-05-09 | Measuring device for neutron flux in nuclear reactor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57184991A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012505392A (en) * | 2008-10-13 | 2012-03-01 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | Apparatus for on-line measurement of fast and epithermal neutron flows. |
-
1981
- 1981-05-09 JP JP56071830A patent/JPS57184991A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012505392A (en) * | 2008-10-13 | 2012-03-01 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | Apparatus for on-line measurement of fast and epithermal neutron flows. |
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