GB915443A - Neutron-absorbant shield - Google Patents

Neutron-absorbant shield

Info

Publication number
GB915443A
GB915443A GB5203/61A GB520361A GB915443A GB 915443 A GB915443 A GB 915443A GB 5203/61 A GB5203/61 A GB 5203/61A GB 520361 A GB520361 A GB 520361A GB 915443 A GB915443 A GB 915443A
Authority
GB
United Kingdom
Prior art keywords
neutron
esters
blocks
cast
metaboric acid
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
GB5203/61A
Inventor
Bror Borge Skytte Jenson
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.)
Atomenergikommissionen
Original Assignee
Atomenergikommissionen
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 Atomenergikommissionen filed Critical Atomenergikommissionen
Publication of GB915443A publication Critical patent/GB915443A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/10—Organic substances; Dispersions in organic carriers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic System
    • C07F5/02—Boron compounds
    • C07F5/04—Esters of boric acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/55—Boron-containing compounds
    • 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
    • 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

A neutron-absorbent shield consists of or contains one or more boric acid esters of aliphatic alcohols containing 9 carbon atoms or more. The metaboric acid esters of cetylic, myristic, stearic and oleic acids are preferred. In examples, these esters are made by melting the appropriate alcohol in a vessel equipped with a stirring apparatus scraping the bottom, adding finely pulverized boric acid and heating to 150 DEG -160 DEG C. A metaboric acid ester of stearyl alcohols, when cast in the beam catchers of a neutron spectrograph, showed satisfactory shielding properties. The boric esters may be mixed with an organic plastic material which is able to form a solution with the ester. Paraffin wax or other waxes and polyethylene are suitable plastic materials. For example the metaboric acid ester of stearic alcohol and polyethylene are mixed by melting together with stirring and the melt is cast into blocks which are easy to machine by saw and lathe. From these blocks, smaller blocks are sawn out which are suitable for stacking into neutron shielding walls in nuclear reactor partitions.
GB5203/61A 1960-02-17 1961-02-13 Neutron-absorbant shield Expired GB915443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK60660AA DK95366C (en) 1960-02-17 1960-02-17 Boron-containing neutron absorbing material.

Publications (1)

Publication Number Publication Date
GB915443A true GB915443A (en) 1963-01-09

Family

ID=8095476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5203/61A Expired GB915443A (en) 1960-02-17 1961-02-13 Neutron-absorbant shield

Country Status (5)

Country Link
CH (1) CH418477A (en)
DE (1) DE1414681A1 (en)
DK (1) DK95366C (en)
GB (1) GB915443A (en)
NL (2) NL261001A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686245A (en) * 1985-01-02 1987-08-11 General Electric Company High energy irradiated polycarbonates containing organic borates
CN103426492A (en) * 2012-05-18 2013-12-04 中国科学院高能物理研究所 Neutron shielding material and preparation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686245A (en) * 1985-01-02 1987-08-11 General Electric Company High energy irradiated polycarbonates containing organic borates
CN103426492A (en) * 2012-05-18 2013-12-04 中国科学院高能物理研究所 Neutron shielding material and preparation process

Also Published As

Publication number Publication date
DE1414681A1 (en) 1968-10-10
NL112626C (en)
NL261001A (en)
DK95366C (en) 1963-02-18
CH418477A (en) 1966-08-15

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