GB793297A - A method of and apparatus for detecting breaks in nuclear reactor fuel rod sheaths - Google Patents

A method of and apparatus for detecting breaks in nuclear reactor fuel rod sheaths

Info

Publication number
GB793297A
GB793297A GB22145/56A GB2214556A GB793297A GB 793297 A GB793297 A GB 793297A GB 22145/56 A GB22145/56 A GB 22145/56A GB 2214556 A GB2214556 A GB 2214556A GB 793297 A GB793297 A GB 793297A
Authority
GB
United Kingdom
Prior art keywords
neutrons
coolant
heavy water
nuclear reactor
july
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
GB22145/56A
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.)
Atomic Energy of Canada Ltd AECL
Original Assignee
Atomic Energy of Canada Ltd AECL
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 Atomic Energy of Canada Ltd AECL filed Critical Atomic Energy of Canada Ltd AECL
Publication of GB793297A publication Critical patent/GB793297A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/04—Detecting burst slugs
    • G21C17/044—Detectors and metering devices for the detection of fission products
    • G21C17/047—Detection and metering circuits
    • 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)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

793,297. Nuclear reactors. ATOMIC ENERGY OF CANADA, Ltd. July 17, 1956 [July 22, 1955], No. 22145/56. Class 39(4). The coolant from a nuclear reactor is monitored to detect neutron emission from I<SP>137</SP> or Br<SP>87</SP> that would arise from any fuel element sheath failing by perforation. To reduce background of neutrons from N<SP>17</SP> produced by O<SP>17</SP> (n,p.) the coolant is not monitored until a time greater than the half-life of the N<SP>17</SP> has passed after leaving the netron flux in the reactor. When heavy water is used as a coolant, Fig. 2, γ-rays produced by decay of N<SP>16</SP>, the result of O<SP>16</SP> (n,p.) and of Na<SP>24</SP>, the result of A1<SP>27</SP> (n,d.), cause the production of neutrons by photo-disintegration of deuterium. As the heavy water is recirculated, Na<SP>24</SP> has to be extracted by ion exchange, at 205, and the monitoring is carried out on a branch 207, with a delay greater than the half-life of N<SP>16</SP>. The detector, B<SP>10</SP>F 3 , records thermal neutrons, and a jacket 214 of ordinary water moderates the neutrons emitted, without increasing the D(y, n) reaction as would happen in a large vessel containing the heavy water.
GB22145/56A 1955-07-22 1956-07-17 A method of and apparatus for detecting breaks in nuclear reactor fuel rod sheaths Expired GB793297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US793297XA 1955-07-22 1955-07-22

Publications (1)

Publication Number Publication Date
GB793297A true GB793297A (en) 1958-04-16

Family

ID=22149850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22145/56A Expired GB793297A (en) 1955-07-22 1956-07-17 A method of and apparatus for detecting breaks in nuclear reactor fuel rod sheaths

Country Status (1)

Country Link
GB (1) GB793297A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089032A (en) * 1957-12-04 1963-05-07 Commissariat Energie Atomique Selective measurement of short-lived fission products in a gas flow
DE1489743B1 (en) * 1964-05-13 1969-11-20 Commissariat Energie Atomique Measuring arrangement for the detection and localization of damage on the shells of the fuel elements of a nuclear reactor with gas as coolant and method for their operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089032A (en) * 1957-12-04 1963-05-07 Commissariat Energie Atomique Selective measurement of short-lived fission products in a gas flow
DE1489743B1 (en) * 1964-05-13 1969-11-20 Commissariat Energie Atomique Measuring arrangement for the detection and localization of damage on the shells of the fuel elements of a nuclear reactor with gas as coolant and method for their operation

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