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GB1062212A - Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath - Google Patents

Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath

Info

Publication number
GB1062212A
GB1062212A GB7767/63A GB776763A GB1062212A GB 1062212 A GB1062212 A GB 1062212A GB 7767/63 A GB7767/63 A GB 7767/63A GB 776763 A GB776763 A GB 776763A GB 1062212 A GB1062212 A GB 1062212A
Authority
GB
United Kingdom
Prior art keywords
pellets
radiation
pellet
gap
sheath
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.)
Expired
Application number
GB7767/63A
Inventor
William Thompson
Victor Rogerson
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB7767/63A priority Critical patent/GB1062212A/en
Priority to FR965085A priority patent/FR1383470A/en
Priority to BE644375D priority patent/BE644375A/xx
Publication of GB1062212A publication Critical patent/GB1062212A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
    • G01B15/025—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness by measuring absorption
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
    • 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
    • G01N23/083—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 X-rays
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Measurement Of Radiation (AREA)

Abstract

1,062,212. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Feb. 19, 1964 [Feb. 26, 1963], No. 7767/63. Heading G6C. [Also in Division G1] Apparatus for the inspection of nuclear fuel elements comprising fuel pellets 79, e.g. UO 2 pellets, together with spacing pellets 82, e.g. Al 2 O 3 pellets, stacked end-to-end in a thinwalled sheath 80, e.g. of stainless steel, includes a source 4 of radiation capable of penetrating the sheath 80, e.g. a 5-curie Pm-147 source providing low energy X-radiation in the form of Bremsstrahlung, a lead shielding and collimating block 6 having a slot 7 of rectangular cross-section which collimates the radiation into a sheet-like beam, means for traversing a fuel element 78 relative to the source 4 so that the beam of radiation passes through the element 78 in a plane perpendicular to its longitudinal axis, and a scintillation detector head 5 for detecting changes in the absorption of the radiation by the element 78. In one form of the apparatus, the detector head 5 is coupled via a ratemeter 83 and amplifiers (not shown) to a high-speed pen recorder 84 which provides a trace on a movable chart 85. As shown, a gap 86 between the left-hand end cap 81 of the sheath 80 and the adjacent end face of the end spacing pellet 82, a gap 87 between the adjacent end faces of the fifth and sixth pellets 79 from the left-hand end of the element and a gap 88 between the adjacent end faces of the centre spacing pellet 82 and the pellet 79 to the left of this pellet 82 are indicated by peaks 86<SP>1</SP>, 87<SP>1</SP> and 88<SP>1</SP> on the chart 85. When the gaps are of less width than the collimating slot 7, the height of the peak is a measure of the width of the gap. Alternatively, the detector head 5 can be employed as a current amplifier with its anode at a low potential and its cathode at a negative high potential, the anode being connected directly in series with an U.V. light beam recorder.
GB7767/63A 1963-02-26 1963-02-26 Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath Expired GB1062212A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB7767/63A GB1062212A (en) 1963-02-26 1963-02-26 Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath
FR965085A FR1383470A (en) 1963-02-26 1964-02-25 Apparatus for testing objects comprising a column of elements arranged end to end in a thin-walled sheath
BE644375D BE644375A (en) 1963-02-26 1964-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7767/63A GB1062212A (en) 1963-02-26 1963-02-26 Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath

Publications (1)

Publication Number Publication Date
GB1062212A true GB1062212A (en) 1967-03-15

Family

ID=9839332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7767/63A Expired GB1062212A (en) 1963-02-26 1963-02-26 Inspection apparatus for articles comprising a column of members arranged end to end in a thin walled sheath

Country Status (3)

Country Link
BE (1) BE644375A (en)
FR (1) FR1383470A (en)
GB (1) GB1062212A (en)

Also Published As

Publication number Publication date
BE644375A (en) 1964-08-26
FR1383470A (en) 1964-12-24

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