JPS5643541A - Neutron absorber density nondestructive measuring unit of control bar - Google Patents

Neutron absorber density nondestructive measuring unit of control bar

Info

Publication number
JPS5643541A
JPS5643541A JP11983679A JP11983679A JPS5643541A JP S5643541 A JPS5643541 A JP S5643541A JP 11983679 A JP11983679 A JP 11983679A JP 11983679 A JP11983679 A JP 11983679A JP S5643541 A JPS5643541 A JP S5643541A
Authority
JP
Japan
Prior art keywords
neutron
control bar
bar
spacer
base plate
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
JP11983679A
Other languages
Japanese (ja)
Inventor
Kiyoshi Ueda
Fumio Kurosawa
Tsutomu Yokoyama
Tomio Tanzawa
Koichi Sakurada
Hajime Adachi
Shigenori Magara
Shigeru Yanagisawa
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
Nippon Atomic Industry Group Co Ltd
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Nippon Atomic Industry Group 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, Nippon Atomic Industry Group Co Ltd filed Critical Toshiba Corp
Priority to JP11983679A priority Critical patent/JPS5643541A/en
Publication of JPS5643541A publication Critical patent/JPS5643541A/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
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/09—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being neutrons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/18—Investigating the presence of flaws defects or foreign matter

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To perform the nondestructive measurement with good mainpulation, by providing the neutron irradiation part and the watertight foil vessel which can be freely attached and detached, on both the sides placing the control bar between them, on the base plate equipped with the notch into which the control bar is inserted together with the moderator and spacer, and detecting the control bar penetrating neutron. CONSTITUTION:The control bar 2 is inserted into the notch 4 of the base plate together with the moderator and spacer 30 which is 1-5cm in thickness by converting it to water of normal temperature, without being damaged by use of the soft members 16, 11. As for this base plate 1, the neutron source 8, the neutron irradiation cavity 5, etc. are installed at the spacer 30 side placing the bar 2 between, and the foil cassette 17 which is watertight, can be freely attached and detached, and accomodates a resonant neutron absorbing foil in its inside is installed at the other side, and the neutron penetrating the bar 2 is detected with good manipulation. The neutron abosrber density can be measured nondestructively and with good operativeness based upon the afore-mentioned detection value.
JP11983679A 1979-09-18 1979-09-18 Neutron absorber density nondestructive measuring unit of control bar Pending JPS5643541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11983679A JPS5643541A (en) 1979-09-18 1979-09-18 Neutron absorber density nondestructive measuring unit of control bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11983679A JPS5643541A (en) 1979-09-18 1979-09-18 Neutron absorber density nondestructive measuring unit of control bar

Publications (1)

Publication Number Publication Date
JPS5643541A true JPS5643541A (en) 1981-04-22

Family

ID=14771450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11983679A Pending JPS5643541A (en) 1979-09-18 1979-09-18 Neutron absorber density nondestructive measuring unit of control bar

Country Status (1)

Country Link
JP (1) JPS5643541A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153675U (en) * 1983-03-31 1984-10-15 吉野　洋一 Reel hub for cassette tape
JP2012251872A (en) * 2011-06-03 2012-12-20 Hitachi-Ge Nuclear Energy Ltd Service life monitoring method of control rod
EP3669379A4 (en) * 2017-08-15 2021-04-28 Westinghouse Electric Company Llc Detection apparatus and method of detecting the neutron absorption capability of a control element of a nuclear installation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451580A (en) * 1977-09-30 1979-04-23 Nippon Atomic Ind Group Co Method and device for nonndestructively measuring concentration of sealed neutron absorbing substance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451580A (en) * 1977-09-30 1979-04-23 Nippon Atomic Ind Group Co Method and device for nonndestructively measuring concentration of sealed neutron absorbing substance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153675U (en) * 1983-03-31 1984-10-15 吉野　洋一 Reel hub for cassette tape
JP2012251872A (en) * 2011-06-03 2012-12-20 Hitachi-Ge Nuclear Energy Ltd Service life monitoring method of control rod
EP3669379A4 (en) * 2017-08-15 2021-04-28 Westinghouse Electric Company Llc Detection apparatus and method of detecting the neutron absorption capability of a control element of a nuclear installation

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