GB818685A - Improvements in fission product detection systems - Google Patents

Improvements in fission product detection systems

Info

Publication number
GB818685A
GB818685A GB33744/56A GB3374456A GB818685A GB 818685 A GB818685 A GB 818685A GB 33744/56 A GB33744/56 A GB 33744/56A GB 3374456 A GB3374456 A GB 3374456A GB 818685 A GB818685 A GB 818685A
Authority
GB
United Kingdom
Prior art keywords
gas
rod
precipitation
fission product
nov
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
GB33744/56A
Inventor
Gordon Vernon Hough
Denis Aliaga Kelly
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of GB818685A publication Critical patent/GB818685A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • B42D15/02—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets
    • B42D15/04—Foldable or multi-part cards or sheets
    • B42D15/045—Multi-part cards or sheets, i.e. combined with detachably mounted articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D19/00—Movable-strip writing or reading apparatus
    • 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
    • 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
    • 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

Abstract

818,685. Nuclear reactors. PLESSEY CO. Ltd. Nov. 1, 1957 [Nov. 5, 1956], No. 33744/56. Class 39(4). Apparatus for determining the fission product content of a gas, comprises means for precipitating fission products from the gas onto a solid surface, means for permitting a continuous flow of the gas through the precipitation means, a beta ray counter device, and means for transporting the solid surface from the precipitating means to the counter device and vice versa. In Fig. 1 gas, which may be the coolant gas of a nuclear reactor, is passed via an inlet 6 and outlet 7 through a precipitation chamber wherein such of the gaseous fission product as decay to solid particles are deposited on a rod 8 under the influence of an electric field maintained between the rod 8 and the outer electrode 3 of the precipitation chamber. After exposure for a given time the rod 8 may be withdrawn by an actuator 2 so that the exposed part is placed adjacent an annular proportional counter 9 where its activity is measured ; the rod can then be moved back to the position shown in Fig. 1 for a further precipitation period, the count obtained during this period being used as a measure of the background radiation.
GB33744/56A 1956-11-05 1956-11-05 Improvements in fission product detection systems Expired GB818685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB357480X 1956-11-05

Publications (1)

Publication Number Publication Date
GB818685A true GB818685A (en) 1959-08-19

Family

ID=10381130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33744/56A Expired GB818685A (en) 1956-11-05 1956-11-05 Improvements in fission product detection systems

Country Status (4)

Country Link
CH (1) CH357480A (en)
DE (1) DE1072331B (en)
FR (1) FR1187115A (en)
GB (1) GB818685A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138710A (en) * 1958-06-23 1964-06-23 Commissariat Energie Atomique Devices for detecting fissionable material jacket bursts in nuclear reactors
US3144553A (en) * 1960-06-02 1964-08-11 Roguin Andre Scintillation detector for detecting radioactive particles in a gaseous stream
US3535524A (en) * 1967-09-15 1970-10-20 Reactor Centrum Nederland Measurement of alpha contamination on surface of fissile element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177258B (en) * 1960-06-02 1964-09-03 Commissariat Energie Atomique Measuring device for detecting fission products contained in a gas, in particular for monitoring the envelopes of fuel elements
BE627853A (en) * 1962-02-05
CN109599196B (en) * 2018-12-19 2019-08-09 西安交通大学 Fission gas leakage measuring instrumentation experimental provision and method after a kind of fuel element failure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138710A (en) * 1958-06-23 1964-06-23 Commissariat Energie Atomique Devices for detecting fissionable material jacket bursts in nuclear reactors
US3144553A (en) * 1960-06-02 1964-08-11 Roguin Andre Scintillation detector for detecting radioactive particles in a gaseous stream
US3535524A (en) * 1967-09-15 1970-10-20 Reactor Centrum Nederland Measurement of alpha contamination on surface of fissile element

Also Published As

Publication number Publication date
CH357480A (en) 1961-10-15
FR1187115A (en) 1959-09-07
DE1072331B (en)

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