JPS57184991A - Measuring device for neutron flux in nuclear reactor - Google Patents

Measuring device for neutron flux in nuclear reactor

Info

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
Application number
JP56071830A
Other languages
Japanese (ja)
Inventor
Toshimasa Tomota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56071830A priority Critical patent/JPS57184991A/en
Publication of JPS57184991A publication Critical patent/JPS57184991A/en
Pending legal-status Critical Current

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.
JP56071830A 1981-05-09 1981-05-09 Measuring device for neutron flux in nuclear reactor Pending JPS57184991A (en)

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)

* Cited by examiner, † Cited by third party
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.

Cited By (1)

* Cited by examiner, † Cited by third party
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.

Similar Documents

Publication Publication Date Title
JPS5644803A (en) System measuring for thickness of nonmetallic sheet like object
JPS55151223A (en) Electronic type weight measuring unit
JPS525581A (en) Voltage detector circuit
JPS57184991A (en) Measuring device for neutron flux in nuclear reactor
JPS56152529A (en) Electric discharge machining device
JPS57141310A (en) Automatic conveyer speed control device
ES8503154A1 (en) Calibration warning apparatus
JPS57190973A (en) Controller of toner concentration
JPS5546182A (en) Flaw signal generation unit for adjustment for eddy current flaw detector
JPS5742282A (en) A/d converter for output video signal of vtr
JPS55143454A (en) Level detector
JPS5664661A (en) Measuring apparatus of dc electric energy
JPS5595180A (en) Error correcting unit of integrator
JPS5762789A (en) Indication and control device for rotatinal speed
JPS55144549A (en) Detecting circuit for automatic chemical analyzer
JPS5231644A (en) Amplifying detector
JPS56125624A (en) Measuring apparatus of molten metal level
JPS5684572A (en) Measuring method for noise voltage of semiconductor device
JPS55149863A (en) Extreme value detector for electric signal
JPS53104277A (en) Electronic watch
JPS5261455A (en) Integrator correction equipment
JPS54106276A (en) Low frequency metering circuit
JPS57140021A (en) Signal detecting circuit
JPS57171220A (en) Electronic weighing device
JPS53123794A (en) Trouble detecting apparatus for in-pile neutron detector in reactor