JPS57146152A - Sodium detector - Google Patents

Sodium detector

Info

Publication number
JPS57146152A
JPS57146152A JP56031162A JP3116281A JPS57146152A JP S57146152 A JPS57146152 A JP S57146152A JP 56031162 A JP56031162 A JP 56031162A JP 3116281 A JP3116281 A JP 3116281A JP S57146152 A JPS57146152 A JP S57146152A
Authority
JP
Japan
Prior art keywords
detector
heat generator
leakage
detect
electrode
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
JP56031162A
Other languages
Japanese (ja)
Inventor
Toshiyoshi Tomita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56031162A priority Critical patent/JPS57146152A/en
Publication of JPS57146152A publication Critical patent/JPS57146152A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To detect the leakage of Na over the wide range of density with high sensitivity and accuracy by a method wherein a heat generator is used as an ionization electrode to detect the change of an ion current and a value of the heat generator resistance in an Na detector of the sampling type. CONSTITUTION:A sintered heat generator (ionization electrode) 3 prepared by sintering molybudenum silicide, silundum and the like, and an ion collector electrode 4 are arranged in the container of a detector 2 so that the generator and electrode face each other. A pump 9 is operated to lead sampling gas to the container 2 from a pipe 1 to allow Na contained in the gas to touch the heat generator heated to have a high temperature by a heating supply 5. The ionized Na is caught by the ion collector electrode, or cathode, when a detector 8 detects the ion current generated to make clear the leakage of Na (a trace). On the other hand, when Na in the sampling gas shows high density, Na attached to the surface of the heat generator 3 and its resistance is reduced. Then the increased current value obtained at that time is subtracted by the detector 6 in order to detect the leakage of Na (greater volume).
JP56031162A 1981-03-06 1981-03-06 Sodium detector Pending JPS57146152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56031162A JPS57146152A (en) 1981-03-06 1981-03-06 Sodium detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56031162A JPS57146152A (en) 1981-03-06 1981-03-06 Sodium detector

Publications (1)

Publication Number Publication Date
JPS57146152A true JPS57146152A (en) 1982-09-09

Family

ID=12323739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56031162A Pending JPS57146152A (en) 1981-03-06 1981-03-06 Sodium detector

Country Status (1)

Country Link
JP (1) JPS57146152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0569236U (en) * 1992-02-25 1993-09-21 日立プラント建設株式会社 Ladder structure
JP2011203183A (en) * 2010-03-26 2011-10-13 Toshiba Corp Sodium leakage detection device and sodium leakage detection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0569236U (en) * 1992-02-25 1993-09-21 日立プラント建設株式会社 Ladder structure
JP2011203183A (en) * 2010-03-26 2011-10-13 Toshiba Corp Sodium leakage detection device and sodium leakage detection method

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