GB1112815A - Method and apparatus for assaying the lithium isotope of mass no.6 - Google Patents

Method and apparatus for assaying the lithium isotope of mass no.6

Info

Publication number
GB1112815A
GB1112815A GB3559/67A GB355967A GB1112815A GB 1112815 A GB1112815 A GB 1112815A GB 3559/67 A GB3559/67 A GB 3559/67A GB 355967 A GB355967 A GB 355967A GB 1112815 A GB1112815 A GB 1112815A
Authority
GB
United Kingdom
Prior art keywords
sample
deuterons
detectors
particles
jan
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
GB3559/67A
Inventor
Georges Bruno
Jacques Decharge
Andre Perrin
Georges Surget
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 GB1112815A publication Critical patent/GB1112815A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/074—Investigating materials by wave or particle radiation secondary emission activation analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/61—Specific applications or type of materials thin films, coatings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/626—Specific applications or type of materials radioactive material

Abstract

1,112,815. Analyzing materials using deuterons. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 24, 1967 [Jan. 24, 1966], No. 3559/67. Heading G1A. The lithium-6 content of a sample is measured by directing on to the sample a beam of deuterons and detecting the α particles produced by the reaction Li6 + d # 2α which are simultaneously emitted by the sample in directions corresponding to opposite directions in the centre of mass system and with energy within a given range. Collimated 700 keV deuterons from an accelerator impinge on a carbon or plastics holder carrying a film of material to be analyzed for Li6. Silicon junction detectors 10, 10' located at 85 degrees to beam direction detect α particles emitted at right angles to the beam in the centre of mass system. The outputs of detectors 10, 10' are fed via amplifiers 14, 14'; 16, 16' and single channel pulse height analyzers 18, 18' to a coincidence circuit 20, which gives an output pulse only when detectors 10 and 10' simultaneously receive α particles of the same energy. A pulse height analyzer 26 may be provided to determine the height difference between spectrum peak and the background level and apply a signal to scaler 22 to compensate for background. In order to compensate for variations in the deuteron beam intensity the same may be measured by a Faraday cage 23 which receives the beam after it has passed through the sample and feeds a current integrator 24. In a modification Fig. 2 (not shown), the deuteron beam intensity is monitored by scattering some of the deuterons which have passed through the sample on to a silicon junction detector by means of a gold foil.
GB3559/67A 1966-01-24 1967-01-24 Method and apparatus for assaying the lithium isotope of mass no.6 Expired GB1112815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR47025A FR1475754A (en) 1966-01-24 1966-01-24 Lithium isotope 6 assay method and device for implementing said method

Publications (1)

Publication Number Publication Date
GB1112815A true GB1112815A (en) 1968-05-08

Family

ID=8599591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3559/67A Expired GB1112815A (en) 1966-01-24 1967-01-24 Method and apparatus for assaying the lithium isotope of mass no.6

Country Status (6)

Country Link
BE (1) BE692041A (en)
CH (1) CH469257A (en)
ES (1) ES335818A1 (en)
FR (1) FR1475754A (en)
GB (1) GB1112815A (en)
LU (1) LU52840A1 (en)

Also Published As

Publication number Publication date
BE692041A (en) 1967-05-29
ES335818A1 (en) 1969-05-16
FR1475754A (en) 1967-04-07
CH469257A (en) 1969-02-28
LU52840A1 (en) 1967-03-20

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