CH339994A - Matériau de protection contre les neutrons - Google Patents

Matériau de protection contre les neutrons

Info

Publication number
CH339994A
CH339994A CH339994DA CH339994A CH 339994 A CH339994 A CH 339994A CH 339994D A CH339994D A CH 339994DA CH 339994 A CH339994 A CH 339994A
Authority
CH
Switzerland
Prior art keywords
shielding material
neutron shielding
neutron
shielding
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
Joseph Lockyer Ivo
Original Assignee
Morgan Crucible Company Limite
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 Morgan Crucible Company Limite filed Critical Morgan Crucible Company Limite
Publication of CH339994A publication Critical patent/CH339994A/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/30—Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
    • G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
    • G11B17/16—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post
    • 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
    • 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
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/12—Moderator or core structure; Selection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator
    • G21C5/126—Carbonic moderators
    • 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
    • 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
    • G21F1/06—Ceramics; Glasses; Refractories
    • 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
    • G21F1/103—Dispersions in organic carriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Ceramic Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Microwave Tubes (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Ceramic Products (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
CH339994D 1955-08-12 1956-08-09 Matériau de protection contre les neutrons CH339994A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB339994X 1955-08-12
GB345043X 1955-09-23
GB334124X 1955-10-25
GB310756X 1956-07-31

Publications (1)

Publication Number Publication Date
CH339994A true CH339994A (fr) 1959-07-31

Family

ID=27448799

Family Applications (3)

Application Number Title Priority Date Filing Date
CH339994D CH339994A (fr) 1955-08-12 1956-08-09 Matériau de protection contre les neutrons
CH345043D CH345043A (de) 1955-08-12 1956-09-20 Kontaktfederanordnung
CH334124D CH334124A (fr) 1955-08-12 1956-10-24 Tube à ondes progressives

Family Applications After (2)

Application Number Title Priority Date Filing Date
CH345043D CH345043A (de) 1955-08-12 1956-09-20 Kontaktfederanordnung
CH334124D CH334124A (fr) 1955-08-12 1956-10-24 Tube à ondes progressives

Country Status (8)

Country Link
US (1) US2882441A (OSRAM)
BE (1) BE550196A (OSRAM)
CH (3) CH339994A (OSRAM)
DE (1) DE1043534B (OSRAM)
FR (3) FR1160723A (OSRAM)
GB (4) GB797692A (OSRAM)
LU (1) LU34572A1 (OSRAM)
NL (3) NL103284C (OSRAM)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967968A (en) * 1957-06-24 1961-01-10 Gen Electric Electron discharge device
DE1178527B (de) * 1959-11-24 1964-09-24 Licentia Gmbh Kernreaktorabschirmung
US3231521A (en) * 1961-05-24 1966-01-25 Carborundum Co Neutron shielding using a composition comprising graphite, boron carbide and carbonized residue
US3324342A (en) * 1963-07-12 1967-06-06 Varian Associates Traveling wave tube having maximum gain and power output at the same beam voltage
GB1373493A (en) * 1971-01-07 1974-11-13 British Nuclear Design Constr Nuclear reactors
US4074211A (en) * 1976-09-07 1978-02-14 The United States Of America As Represented By The Secretary Of The Army Dielectric substrate for slow-wave structure
DE2752040C3 (de) * 1977-11-22 1981-10-08 Elektroschmelzwerk Kempten GmbH, 8000 München Neutronenabsorberplatten auf Grundlage von Borcarbid und Kohlenstoff und Verfahren zu ihrer Herstellung
GB2296370B (en) * 1994-12-19 1998-07-29 Eev Ltd Travelling wave tubes
FR2995360B1 (fr) 2012-09-12 2018-06-15 Snecma Procede de montage d'un panneau acoustique dans un carter d'une turbomachine et turbomachine comportant un panneau acoustique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913000C (de) * 1943-07-08 1954-06-08 Dr Boris Rajewsky Bauelement oder Bauteil zum Schutz gegen Neutronen- und ª†-Strahlung
FR954564A (OSRAM) * 1946-10-22 1950-01-03
US2584597A (en) * 1949-01-26 1952-02-05 Sylvania Electric Prod Traveling wave tube
GB764681A (en) * 1952-01-01 1957-01-02 Mullard Radio Valve Co Ltd Improvements in travelling wave tubes
FR1060245A (fr) * 1952-07-15 1954-03-31 Centre Nat Rech Scient Matériau absorbant les radiations d'origine nucléaire et notamment les radiations neutroniques
US2771565A (en) * 1952-08-19 1956-11-20 Itt Traveling wave tubes
BE517667A (OSRAM) * 1953-02-14
US2752430A (en) * 1954-03-11 1956-06-26 Hughes Aircraft Co Traveling-wave tube automatic gain control
BE557951A (OSRAM) * 1954-10-29

Also Published As

Publication number Publication date
FR1156297A (fr) 1958-05-14
FR1159105A (fr) 1958-06-23
NL103284C (OSRAM)
NL211372A (OSRAM)
CH345043A (de) 1960-03-15
GB821915A (en) 1959-10-14
CH334124A (fr) 1958-11-15
GB810098A (en) 1959-03-11
US2882441A (en) 1959-04-14
BE550196A (OSRAM)
NL209604A (OSRAM)
GB802876A (en) 1958-10-15
FR1160723A (fr) 1958-07-29
DE1043534B (de) 1958-11-13
GB797692A (en) 1958-07-09
LU34572A1 (OSRAM)

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