FR2036891A7 - Upper and lower neutron shields for gas - cooled reactors - Google Patents

Upper and lower neutron shields for gas - cooled reactors

Info

Publication number
FR2036891A7
FR2036891A7 FR6911613A FR6911613A FR2036891A7 FR 2036891 A7 FR2036891 A7 FR 2036891A7 FR 6911613 A FR6911613 A FR 6911613A FR 6911613 A FR6911613 A FR 6911613A FR 2036891 A7 FR2036891 A7 FR 2036891A7
Authority
FR
France
Prior art keywords
blocks
layers
gas
cooled reactors
lower neutron
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
FR6911613A
Other languages
French (fr)
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 Power Constructions Ltd
Original Assignee
Atomic Power Constructions 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
Priority to DE19691918819 priority Critical patent/DE1918819A1/en
Application filed by Atomic Power Constructions Ltd filed Critical Atomic Power Constructions Ltd
Priority to FR6911613A priority patent/FR2036891A7/en
Application granted granted Critical
Publication of FR2036891A7 publication Critical patent/FR2036891A7/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C11/00—Shielding structurally associated with the reactor
    • G21C11/02—Biological shielding ; Neutron or gamma shielding
    • G21C11/028—Biological shielding ; Neutron or gamma shielding characterised by the form or by the material
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/04—Thermal reactors ; Epithermal reactors
    • G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
    • G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
    • G21C1/10—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor moderator and coolant being different or separated
    • G21C1/12—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor or gas-graphite reactor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C11/00—Shielding structurally associated with the reactor
    • G21C11/02—Biological shielding ; Neutron or gamma shielding
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/14—Moderator or core structure; Selection of materials for use as moderator characterised by shape
    • 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

The graphite moderated core has a neutron shield composed essentially of two superimposed layers of blocks made from neutron capture material. The blocks are so shaped and/or orientated that they leave a through passage for the coolant but are staggered in such a way that there is no direct, normal, line of sight from one side of the two neighbouring blocks of the two layers to the other. At least some of the blocks have through passages for the loading and unloading of fuel elements and these are offset from the centre of the blocks. The holes in the two layers can be lined up for fuelling operations when all the blocks in one layer are rotated through 180 degrees relative to those in the other.
FR6911613A 1969-04-15 1969-04-15 Upper and lower neutron shields for gas - cooled reactors Expired FR2036891A7 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19691918819 DE1918819A1 (en) 1969-04-15 1969-04-14 Nuclear reactor
FR6911613A FR2036891A7 (en) 1969-04-15 1969-04-15 Upper and lower neutron shields for gas - cooled reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6911613A FR2036891A7 (en) 1969-04-15 1969-04-15 Upper and lower neutron shields for gas - cooled reactors

Publications (1)

Publication Number Publication Date
FR2036891A7 true FR2036891A7 (en) 1970-12-31

Family

ID=9032417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6911613A Expired FR2036891A7 (en) 1969-04-15 1969-04-15 Upper and lower neutron shields for gas - cooled reactors

Country Status (2)

Country Link
DE (1) DE1918819A1 (en)
FR (1) FR2036891A7 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382264A1 (en) * 1977-03-03 1978-09-29 Ght Hochtemperaturreak Tech MIXER AND DISPERSER DEVICE FOR HIGH TEMPERATURE GAS
FR2389201A1 (en) * 1977-04-26 1978-11-24 Hochtemperatur Reaktorbau Gmbh SUPPORT OF THE CORE OF A GAS-COOLED HIGH-TEMPERATURE REACTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382264A1 (en) * 1977-03-03 1978-09-29 Ght Hochtemperaturreak Tech MIXER AND DISPERSER DEVICE FOR HIGH TEMPERATURE GAS
FR2389201A1 (en) * 1977-04-26 1978-11-24 Hochtemperatur Reaktorbau Gmbh SUPPORT OF THE CORE OF A GAS-COOLED HIGH-TEMPERATURE REACTOR

Also Published As

Publication number Publication date
DE1918819A1 (en) 1970-10-15

Similar Documents

Publication Publication Date Title
CH472094A (en) Charger for fuel assemblies and control rods in a nuclear reactor
ES382735A1 (en) Nuclear fuel assembly with reinforced flow channel
CA945693A (en) Flow twister for nuclear reactor fuel assemblies
ES453573A1 (en) Nuclear reactor core flow baffling
JPS5598392A (en) Under cooling portion protection layer in nuclear reactor vessel
IT959294B (en) NUCLEAR FUEL GROUP IN PARTICULAR FOR NEUTRAL RAPID REACTOR
FR2036891A7 (en) Upper and lower neutron shields for gas - cooled reactors
GB1206927A (en) Particulate nuclear fuels
BE744909A (en) SYSTEM FOR LOADING AND UNLOADING FUEL ELEMENTS IN A VERTICAL CHANNEL NUCLEAR REACTOR
GB1043713A (en) Method of and apparatus for treating bituminous material or hydrocarbons underground with energy from nuclear fission
CA949236A (en) Staggered cone deflectors for nuclear reactor fuel assemblies
IL32076A0 (en) Nuclear reactor utilizing plutonium in peripheral fuel assemblies
GB1126322A (en) Improvements in or relating to the operation of nuclear reactors
GB1236808A (en) Improvements in and relating to nuclear radiation attenuating means
GB1001118A (en) Improvements in nuclear reactors
SU416760A1 (en) Radiochemical apparatus
BOURDET RECYCLING OF PLUTONIUM. STUDIES RELATED TO THE STORAGE AND HANDLING OF PLUTONIUM FUEL ASSEMBLIES
GB1248932A (en) Nuclear reactor fuelling installations
FRANK Development and application of the IBR pulsed reactor in scientific research(Research projects using instantaneous pulsed breeder reactor with microtron injector)
GB1151334A (en) Nuclear Reactors
GB1307680A (en) Nuclear reactors
CA923224A (en) Nuclear reactor utilizing plutonium in peripheral fuel assemblies
MUIR Fission fragment angular distributions for Th-230, Th-232, Pa-231, and Pn-239(Fission product angular distribution for thorium, protactinium, and plutonium isotopes)
GB2091932B (en) Nuclear reactor having fuel assemblies with controllable coolant flow therethrough
GB882031A (en) Improvements relating to radiation shielding for nuclear equipment

Legal Events

Date Code Title Description
ST Notification of lapse