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GB943671A - Improvements in radioactive sources - Google Patents

Improvements in radioactive sources

Info

Publication number
GB943671A
GB943671A GB790161A GB790161A GB943671A GB 943671 A GB943671 A GB 943671A GB 790161 A GB790161 A GB 790161A GB 790161 A GB790161 A GB 790161A GB 943671 A GB943671 A GB 943671A
Authority
GB
United Kingdom
Prior art keywords
tio2
al2o3
glass
source
pict
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
GB790161A
Inventor
Guy Courtois
Pierre Le Clerc
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB943671A publication Critical patent/GB943671A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1315—Non-ceramic binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
    • G21G4/00—Radioactive sources
    • G21G4/04—Radioactive sources other than neutron sources
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
    • G21G4/00—Radioactive sources
    • G21G4/04—Radioactive sources other than neutron sources
    • G21G4/06—Radioactive sources other than neutron sources characterised by constructional features

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Measurement Of Radiation (AREA)
  • Glass Compositions (AREA)

Abstract

<PICT:0943671/C1/1> <PICT:0943671/C1/2> A radioactive source suitable for use under high mechanical stresses at high temperature and in corrosive atmospheres comprises a radioactive substance embedded or incorporated in a mass of pyroceram consisting of a crystalline glass containing 2-20% by weight of TiO2. As shown in Fig. 1 cobalt wire 1 is surrounded by ceramic glass material 2 containing SiO2, Al2O3, TiO2, ZnO, and MgO, and enclosed in a stainless steel container 3 which is disposed in an envelope 5 of sintered alumina. A seal between the alumina envelope 5 and closure plug 6 is effected by a high melting point glass containing large proportions of BeO and Al2O3, or by a ceramic glass composition containing SiO2, Al2O3, TiO2, and CoO. Before enclosing the tube 3, it is irradiated in a nuclear reactor to form cobalt-60. A wire of Ta 182 or Sb124 may be used instead of Co 60. Alternatively, Figs. 2 and 3 (not shown), the radioactive substance is incorporated in the ceramic glass mass, for example as CoO. The source may be used for controlling the thickness of a glass sheet 10, Fig. 4, as it is drawn from a furnace 8; radiation from the source 14 is detected at 15, and the rotation speed of rollers 11, 12 is regulated by electronic unit 15a. U.S.A. Specification 2,920,971 is referred to.
GB790161A 1960-03-17 1961-03-03 Improvements in radioactive sources Expired GB943671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR821656A FR1264489A (en) 1960-03-17 1960-03-17 Improvements to radioactive sources

Publications (1)

Publication Number Publication Date
GB943671A true GB943671A (en) 1963-12-04

Family

ID=8727332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB790161A Expired GB943671A (en) 1960-03-17 1961-03-03 Improvements in radioactive sources

Country Status (8)

Country Link
BE (1) BE600665A (en)
CH (1) CH413133A (en)
DE (1) DE1286649B (en)
FR (1) FR1264489A (en)
GB (1) GB943671A (en)
LU (1) LU39839A1 (en)
NL (1) NL6506642A (en)
SE (1) SE309814B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107464597A (en) * 2017-08-30 2017-12-12 中广核研究院有限公司 Hot industry cobalt source anti-leak encapsulating structure and packaging technology

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201884A1 (en) * 1982-01-22 1983-08-04 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover METHOD FOR CLOSING CONTAINERS CONTAINING RADIOACTIVE SUBSTANCES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE528169A (en) *
DE600991C (en) * 1932-10-25 1934-08-06 Allg Radium Akt Ges Process for the production of radioactive irradiation preparations
US2830190A (en) * 1954-02-05 1958-04-08 Tracerlab Inc Radioactive source
FR1177799A (en) * 1956-06-04 1959-04-29 Corning Glass Works Manufacturing process of ceramic products
DE1016855B (en) * 1956-07-27 1957-10-03 Chininfabrik Braunschweig Buch Process for the production of closed radioactive preparations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107464597A (en) * 2017-08-30 2017-12-12 中广核研究院有限公司 Hot industry cobalt source anti-leak encapsulating structure and packaging technology

Also Published As

Publication number Publication date
FR1264489A (en) 1961-06-23
SE309814B (en) 1969-04-08
LU39839A1 (en) 1961-04-28
CH413133A (en) 1966-05-15
BE600665A (en) 1961-06-16
DE1286649B (en) 1969-01-09
NL6506642A (en) 1965-07-26

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