GB1487358A - Method of manufacturing sealed sources of ionizing radiation and sources obtained by the method - Google Patents

Method of manufacturing sealed sources of ionizing radiation and sources obtained by the method

Info

Publication number
GB1487358A
GB1487358A GB5398174A GB5398174A GB1487358A GB 1487358 A GB1487358 A GB 1487358A GB 5398174 A GB5398174 A GB 5398174A GB 5398174 A GB5398174 A GB 5398174A GB 1487358 A GB1487358 A GB 1487358A
Authority
GB
United Kingdom
Prior art keywords
sources
ionizing radiation
layer
dec
microns
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
GB5398174A
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 GB1487358A publication Critical patent/GB1487358A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
    • G21G4/00—Radioactive sources

Abstract

1487358 Vapour depositing radio-active materials COMMISSARIAT A'LENERGIE ATOMIQUE 13 Dec 1974 [17 Dec 1973] 53981/74 Heading C7F [Also in Division G6] A sealed source of ionizing radiation for e.g. fire alarms, lightning conductors, detecting combustion gases or eliminating static electricity comprises a layer (10 to 1000 Š thick) of e.g. plutonium oxide, curium or americium vapour deposited or sputtered on a substrate of e.g. Ni, and then heated in oxygen (900 to 1300‹C) to oxidise the substrate which diffuses through the radio-active layer to form an inert coating. The protective oxide layer is less than 10 microns for a source emitting α rays, and less than 200 microns for a source emitting γ or # rays.
GB5398174A 1973-12-17 1974-12-13 Method of manufacturing sealed sources of ionizing radiation and sources obtained by the method Expired GB1487358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7345060A FR2279206A1 (en) 1973-12-17 1973-12-17 PROCESS FOR MANUFACTURING SOURCES OF Sealed IONIZING RADIATION AND SOURCES OBTAINED BY THIS PROCESS

Publications (1)

Publication Number Publication Date
GB1487358A true GB1487358A (en) 1977-09-28

Family

ID=9129322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5398174A Expired GB1487358A (en) 1973-12-17 1974-12-13 Method of manufacturing sealed sources of ionizing radiation and sources obtained by the method

Country Status (5)

Country Link
BE (1) BE823259A (en)
CH (1) CH591749A5 (en)
FR (1) FR2279206A1 (en)
GB (1) GB1487358A (en)
IT (1) IT1027078B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118760A (en) * 1982-04-20 1983-11-02 Amersham Int Plc Method of making radioactive sources
GB2227755A (en) * 1988-12-08 1990-08-08 Univ Hull Improving the wear resistance of metallic components by coating and diffusion treatment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450498A1 (en) * 1979-03-02 1980-09-26 Commissariat Energie Atomique METHOD FOR MANUFACTURING A RADIOACTIVE SOURCE AND SOURCE OBTAINED BY SAID METHOD

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118760A (en) * 1982-04-20 1983-11-02 Amersham Int Plc Method of making radioactive sources
GB2227755A (en) * 1988-12-08 1990-08-08 Univ Hull Improving the wear resistance of metallic components by coating and diffusion treatment
GB2227755B (en) * 1988-12-08 1993-03-10 Univ Hull A process for improving the wear and corrosion resistance of metallic components

Also Published As

Publication number Publication date
FR2279206A1 (en) 1976-02-13
BE823259A (en) 1975-04-01
FR2279206B1 (en) 1976-11-19
IT1027078B (en) 1978-11-20
CH591749A5 (en) 1977-09-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee